The application of LUBRICANTS to diminish FRICTION between two surfaces.
Compounds that provide LUBRICATION between surfaces in order to reduce FRICTION.
Surface resistance to the relative motion of one body against the rubbing, sliding, rolling, or flowing of another with which it is in contact.
The clear, viscous fluid secreted by the SYNOVIAL MEMBRANE. It contains mucin, albumin, fat, and mineral salts and serves to lubricate joints.
The climax of sexual excitement in either humans or animals.
A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact.
Physiological disturbances in normal sexual performance in either the male or the female.
Disturbances in sexual desire and the psychophysiologic changes that characterize the sexual response cycle and cause marked distress and interpersonal difficulty. (APA, DSM-IV, 1994)
A natural high-viscosity mucopolysaccharide with alternating beta (1-3) glucuronide and beta (1-4) glucosaminidic bonds. It is found in the UMBILICAL CORD, in VITREOUS BODY and in SYNOVIAL FLUID. A high urinary level is found in PROGERIA.
Recurrent genital pain occurring during, before, or after SEXUAL INTERCOURSE in either the male or the female.
Also known as articulations, these are points of connection between the ends of certain separate bones, or where the borders of other bones are juxtaposed.
The resistance that a gaseous or liquid system offers to flow when it is subjected to shear stress. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Characteristics or attributes of the outer boundaries of objects, including molecules.
Oils which are used in industrial or commercial applications.
An enzyme that catalyzes the eliminative degradation of polysaccharides containing 1,4-beta-D-hexosaminyl and 1,3-beta-D-glucuronosyl or 1,3-alpha-L-iduronosyl linkages to disaccharides containing 4-deoxy-beta-D-gluc-4-enuronosyl groups. (Enzyme Nomenclature, 1992)
A species of ACTINOMYCES found in the oral cavity of man and hamsters. It has been isolated from actinomycotic lesions in swine, cats, and dogs and has been identified as a causative agent of animal diseases.
The quality or state of being wettable or the degree to which something can be wet. This is also the ability of any solid surface to be wetted when in contact with a liquid whose surface tension is reduced so that the liquid spreads over the surface of the solid.
A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.
Mucus-secreting glands situated on the posterior and lateral aspect of the vestibule of the vagina.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
A slightly alkaline secretion of the endocervical glands. The consistency and amount are dependent on the physiological hormone changes in the menstrual cycle. It contains the glycoprotein mucin, amino acids, sugar, enzymes, and electrolytes, with a water content up to 90%. The mucus is a useful protection against the ascent of bacteria and sperm into the uterus. (From Dictionary of Obstetrics and Gynecology, 1988)
Pathological processes of the VULVA.
Messages between computer users via COMPUTER COMMUNICATION NETWORKS. This feature duplicates most of the features of paper mail, such as forwarding, multiple copies, and attachments of images and other file types, but with a speed advantage. The term also refers to an individual message sent in this way.
Mechanical food dispensing machines.
The guidelines and policy statements set forth by the editor(s) or editorial board of a publication.
The profession of writing. Also the identity of the writer as the creator of a literary production.
A publication issued at stated, more or less regular, intervals.
The functions and activities carried out by the U.S. Postal Service, foreign postal services, and private postal services such as Federal Express.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
A hemeprotein that catalyzes the oxidation of the iodide radical to iodine with the subsequent iodination of many organic compounds, particularly proteins. EC 1.11.1.8.
Living facilities for humans.
A generic concept reflecting concern with the modification and enhancement of life attributes, e.g., physical, political, moral and social environment; the overall condition of a human life.
Foodstuff used especially for domestic and laboratory animals, or livestock.
The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.
The faculty of expressing the amusing, clever, or comical or the keen perception and cleverly apt expression of connections between ideas that awaken amusement and pleasure. (From Random House Unabridged Dictionary, 2d ed)
Therapeutic use of humor and laughter to improve emotional well being and health.
An alcoholic beverage usually made from malted cereal grain (as barley), flavored with hops, and brewed by slow fermentation.
Any behavior caused by or affecting another individual, usually of the same species.
Support systems that provide assistance and encouragement to individuals with physical or emotional disabilities in order that they may better cope. Informal social support is usually provided by friends, relatives, or peers, while formal assistance is provided by churches, groups, etc.
Method of making images on a sensitized surface by exposure to light or other radiant energy.
A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.
Semidomesticated variety of European polecat much used for hunting RODENTS and/or RABBITS and as a laboratory animal. It is in the subfamily Mustelinae, family MUSTELIDAE.
Exclusive legal rights or privileges applied to inventions, plants, etc.
Areas of attractive or repulsive force surrounding MAGNETS.
Elements of the lanthanoid series including atomic number 57 (LANTHANUM) through atomic number 71 (LUTETIUM).
The properties, processes, and behavior of biological systems under the action of mechanical forces.
Tools used in dentistry that operate at high rotation speeds.
Dental methods involving the use of DENTAL HIGH-SPEED EQUIPMENT.
The nonexpendable items used by the dentist or dental staff in the performance of professional duties. (From Boucher's Clinical Dental Terminology, 4th ed, p106)
Efforts to prevent and control the spread of infections within dental health facilities or those involving provision of dental care.

Frequent use of lubricants for anal sex among men who have sex with men: the HIV prevention potential of a microbicidal gel. (1/109)

OBJECTIVES: This study assessed frequency of rectal lubricant use, opinions about rectal microbicidal gels, and willingness to participate in acceptability trials of rectal microbicides among Latino men who have sex with men (MSM). METHODS: Latino MSM (N = 307) living in New York City were surveyed from October 1995 through November 1996. Eleven Latino MSM participated in a focus group. RESULTS: Among those having anal sex during the prior year, 93% used lubricants (59% always and 74% in at least 80% of sexual encounters) regardless of condom use. Of the 29 men who practiced anal sed but did not use condoms, 90% used lubricants with similar frequency. Of those using lubricants, 94% used at least 1 teaspoon per occasion. A transparent product, free of smell and taste, was favored. Of the MSM in the sample, 92% said that they would use a lubricant with an anti-HIV microbicidal agent, and 87% expressed interest in participating in an acceptability trial. Product and dispenser preferences also were discussed. CONCLUSIONS: A rectal lubricant with microbicidal properties appears acceptable and desirable to Latino men who have anal sex with other men.  (+info)

Femoral prosthetic heads and their significance in polyethylene wear. (2/109)

We used scanning electron microscopy to perform an ultrastructural analysis and two optical interferometric profilers to measure roughness on 40 prosthetic femoral heads. We expressed roughness as Ra (roughness average) value and Rsk (roughness skewness) value. Our results show that in order to obtain an ideal surface finish a low or not very high Ra value and a negative Rsk value are needed. The presence of depressions or holes (rather than scratches) with smooth (rather than sharp) edges seems to improve the lubrication and wettability properties.  (+info)

Review article: the therapy of constipation. (3/109)

Constipation is a common symptom that may be idiopathic or due to various identifiable disease processes. Laxatives are agents that add bulk to intestinal contents, that retain water within the bowel lumen by virtue of osmotic effects, or that stimulate intestinal secretion or motility, thereby increasing the frequency and ease of defecation. Drugs which improve constipation by stimulating gastrointestinal motility by direct actions on the enteric nervous system are under development. Other modalities used to treat constipation include biofeedback and surgery. Laxatives and lavage solutions are also used for colon preparation and evacuation of the bowels after toxic ingestions.  (+info)

Gel lubrication of the tracheal tube cuff reduces pulmonary aspiration. (4/109)

BACKGROUND: Leakage of fluid occurs along the longitudinal folds within the wall of an inflated high-volume, low-pressure cuff. Theoretically, lubrication of the cuff with a water-soluble gel might prevent aspiration by plugging the channels in the cuff wall. Pulmonary aspiration during anesthesia has been linked with postoperative pneumonia and during critical illness causes ventilator-associated pneumonia. METHODS: Lubricated cuffs were compared with nonlubricated cuffs for leakage of dye placed in the subglottic space to the tracheobronchial tree in a benchtop model (n = 5) and in a prospective double-blinded randomized controlled trial of anesthetized patients (n = 36). The duration of the efficacy of the lubricant was determined in a prospective open observational study of critically ill patients with tracheostomies (n = 9). Dye was detected clinically by dye coloration of secretions during tracheal suctioning. RESULTS: In the benchtop model the incidence of leakage was 0% in the lubrication group and 100% in the nonlubrication group (P < 0.01). Dye leakage in anesthetized patients was 11% in the lubrication group and 83% in the nonlubrication group (P < 0.0001). In the critically ill patients with lubricated cuffed tracheostomy tubes, leakage first occurred after a median period of 48 h (range, 24-120 h). CONCLUSIONS: Cuff lubrication with a water-soluble gel reduces pulmonary aspiration in anesthetized patients. In the critically ill patient with a tracheostomy the protective effect is lost after 24-120 h.  (+info)

Comparative evaluation of tableting compression behaviors by methods of internal and external lubricant addition: inhibition of enzymatic activity of trypsin preparation by using external lubricant addition during the tableting compression process. (5/109)

This study evaluated tableting compression by using internal and external lubricant addition. The effect of lubricant addition on the enzymatic activity of trypsin, which was used as a model drug during the tableting compression process, was also investigated. The powder mixture (2% crystalline trypsin, 58% crystalline lactose, and 40% microcrystalline cellulose) was kneaded with 5% hydroxypropyl cellulose aqueous solution and then granulated using an extruding granulator equipped with a 0.5-mm mesh screen at 20 rpm. After drying, the sample granules were passed through a 10-mesh screen (1680 microm). A 200-mg sample was compressed by using 8-mm punches and dies at 49, 98, 196, or 388 MPa (Mega Pascal) at a speed of 25 mm/min. The external lubricant compression was performed using granules without lubricant in the punches and dies. The granules were already dry coated by the lubricant. In contrast, the internal lubricant compression was performed using sample granules (without dry coating) containing 0.5% lubricant. At 98 MPa, for example, the compression level using the external lubricant addition method was about 13% higher than that for internal addition. The significantly higher compressing energy was also observed at other MPas. By comparison, the friction energy for the external addition method calculated based on upper and lower compression forces was only slightly larger. The hardness of tablets prepared using the internal addition method was 34% to 48% lower than that for the external addition method. The total pore volume of the tablet prepared using the external addition method was significantly higher. The maximum ejection pressure using the no-addition method (ie, the tablet was prepared using neither dry-coated granules nor added lubricant) was significantly higher than that of other addition methods. The order was as follows: no addition, external addition, and then internal addition. The ejection energy (EE) for internal addition was the lowest; for no addition, EE was the highest. In the dissolution test, the tablets obtained using external addition immediately disintegrated and showed faster drug release than those prepared using internal addition. This result occurred because the water penetration rate of the tablet using the external addition was much higher. The trypsin activity in tablets prepared using the external addition method was significantly higher than that produced using the internal addition method at the same pressure. All these results suggest that the external addition method might produce a fast-dissolution tablet. Because the drug will be compressed using low pressure only, an unstable bulk drug may be tableted without losing potency.  (+info)

Additives in plastics. (6/109)

The polymers used in plastics are generally harmless. However, they are rarely used in pure form. In almost all commercial plastics, they are "compounded" with monomeric ingredients to improve their processing and end-use performance. In order of total volume used, these monomeric additives may be classified as follows: reinforcing fibers, fillers, and coupling agents; plasticizers; colorants; stabilizers (halogen stabilizers, antioxidants, ultraviolet absorbers, and biological preservatives); processing aids (lubricants, others, and flow controls); flame retardants, peroxides; and antistats. Some information is already available, and much more is needed, on potential toxicity and safe handling of these additives during processing and manufacture of plastics products.  (+info)

Female condom reuse in Lusaka, Zambia: evidence from 12 cases. (7/109)

Female condom reuse could address one of the principal barriers to use, namely, cost; however, the safety of reuse has not been established. Recent reports have provided information related to reuse safety under carefully specified research study conditions. Still, little is known about reuse outside a research study context, and there are outstanding questions related to feasibility of reuse among general populations. This study reports on naturally occurring reuse from a small, purposive sample of self-identified women who, prior to the study, had reused the female condom of their own volition without reuse instruction. Three types of reuse were identified. Most women attempted to clean devices between removal and reinsertion. A number of agents, including water (only), bath soap, laundry detergent, Dettol, and beer were used for cleaning. A number of agents were used for relubrication, including Reality((R)) lubricant, various kinds of cooking oil, and Vaseline((TM)). Perception of the strength and integrity of female condoms making them suitable for reuse were influenced by both provider advice and product packaging. Most participants reported no problems with reuse. Some women, faced with barriers to single use of a female condom or use of an acceptable alternative, will resort to reuse and rely on their own "common sense" notions to implement reuse. Providers and purveyors have opportunities to shape responses to reuse for the better, and the research community is obligated to provide a solid scientific base regarding reuse safety.  (+info)

Some new evidence on human joint lubrication. (8/109)

Theoretical consideration has been given to the use of pendulum machines which are used to examine the frictional properties of human joints by incorporating them as fulcra. As a result, a new type of pendulum machine has been built which incorporates the facility to apply sudden loads to the joint on starting the swinging motion, and also the ability to measure directly the frictional torque experienced by the joint. The results obtained from natural hip joints indicate the presence of squeeze film lubrication under conditions of sudden loading of a joint. In addition, a self-generated fluid film process was observed at low loads while at higher loads boundary lubrication appeared to be important. These results have been used to describe the lubrication regimens occurring in a normal activity such as walking. A single experiment carried out on a hip from a patient suffering from severe rheumatoid arthritis has also been reported and the frictional resistance was seen to be increased fifteenfold compared to a normal hip.  (+info)

Vaginal lubrication is a naturally produced fluid that lubricates a womans vagina. Vaginal lubrication is always present, but production increases significantly near ovulation and during sexual arousal in anticipation of sexual intercourse. Vaginal dryness is the condition in which this lubrication is insufficient, and sometimes artificial lubricants are used to augment it. Without sufficient lubrication, sexual intercourse can be painful to women as well as their male partners. The vaginal lining has no glands, and therefore the vagina must rely on other methods of lubrication. Plasma from vaginal walls due to vascular engorgement is considered to be the chief lubrication source, and the Bartholins glands, located slightly below and to the left and right of the introitus (vaginal opening), also secrete mucus to augment vaginal-wall secretions. Near ovulation, cervical mucus provides additional lubrication. The lubricative fluid contains water, pyridine, squalene, urea, acetic acid, lactic ...
Based in Houston, the company said it designs and establishes lubrication programs through a three-step program:. Monitor: a thorough assessment of a facility s existing lubrication program, including interviews, inspections and program reviews. This results in a reliability roadmap that highlights the areas of significant opportunity for improvement and provides a detailed action plan for best practice implementation, along with expected ROI. Maintain: a detailed plan for system lubrication points - plus preventive maintenance - that keeps the facility s lubrication system clean and functional at all times. Through consistent analysis, action improvement plans are developed that can extend lubricant life. That reduces the need to replace lubricant, which saves money and enhances the facility s commitment to the environment.. Optimize: a customized program to sustain the lubrication system in a highly efficient, green, safe manner. This includes a best practices program for storage, handling and ...
SKF WindCon Lubrication Interface is an active interface that links together SKF WindCon and SKF WindLub (Fig. 1), featuring SKF and Lincoln lubrication systems. It enables an automatic, additional dose of lubrication to wind turbine bearings in distress and offers full monitoring of the lubrication pump. SKF WindCon Lubrication Interface allows OEMs and wind farm operators to control maintenance demands and reduce their costs per kilowatt-hour ...
SKF has installed the SKF Proflex automated lubrication systems in the MSC Home Terminal cranes inEuropes second largest port, Belgiums Port of Antwerp, enabling the customer to reduce manual maintenance with about 1,900 hours annually.. On average, the customer spent about 90 hours to perform lubrication routines manually and this is carried out when the cranes are not in operation. As the container port traffic experiences double digit growth yearly, the terminal operator faces increased time pressure and shorter maintenance windows to carry out the work.. By automating the lubrication process,the SKF ProFlex system is an ideal solution for our customer. Previous manual lubrication routines required a lot of man-hours per year, per crane. SKF ProFlex systems are now supporting crane availability and are helping to cut downtime and productivity loss. The systems also eliminate the safety risks workers are exposed to if they would need to perform the manual lubrication work on the cranes, ...
Alibaba.com offers 38,344 lubrication systems products. About 11% of these are lubrication system, 7% are auto oil filter, and 2% are other auto lubrication system. A wide variety of lubrication systems options are available to you, such as oil filter, oil pump, and oil cooler.
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Hunter, Of the structure and diseases of articulating cartilages. Phil Trans 42, 514 (1742). 12. L. Ito, The nutrition of articular cartilage and its method of repair. Br J Surg 12(45), 31-42 (1924). 13. M. A. MacConaill, Lubrication of mammalian joints. Nature 185(4717), 920-920 (1960). 14. P. Lewis, C. McCutchen, Lubrication of mammalian joints. In Nature Vol. 185, pp 920-921 1960. 15. L. Bian, M. Kaplun, D. Williams, D. Xu, G. Ateshian, C. Hung, Influence of chondroitin sulfate on the biochemical, mechanical and frictional properties of cartilage explants in long-term culture. Hung, The natural synovial joint: properties of cartilage. Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology 220(J8), 657-670 (2006). 2. A. Neville, A. Morina, T. Liskiewicz, Y. Yan, Synovial joint lubrication - does nature teach more effective engineering lubrication strategies? P I Mech Eng C-J Mec 221(10), 1223-1230 (2007). 3. J. Lane, C. Weiss, Review of ...
China Bearing lubrication skills manufacturers,Bearing lubrication skills for sale, First, the bearing dripping oil lubrication method Drip lubrication suitable for the need to quantify the supply of lubricating oil bearing parts, the amount of oil per drop every 3-8 seconds is appropriate, too much oil will cause the bearing temperature increases. Second, the cam gear oil b...
The aim of this thesis was to investigate how lubricin and galectins function within the synovial environment to maintain joint integrity and enhance articular cartilage lubrication. The specific aims of the research were to 1) evaluate how lubricin gene and glycoprotein expression were altered in equine carpal osteoarthritis (OA); 2) investigate the interactions between synovial lubricin and galectins-1 and -3 to determine if lubricin and galectins could synergistically enhance articular cartilage boundary lubrication and; 3) evaluate equine mesenchymal stem cell (MSC) galectin expression and the role of galectins-1 and -3 on MSC properties. Lubricin gene expression was quantified in joint tissues obtained from horses with experimental and naturally occurring carpal OA. Experimental OA was induced by creating a 6mm osteochondral chip fracture within the middle carpal joint (MCJ) of horses followed by high-speed treadmill exercise, and joints were assessed 70 days post-fragmentation using gross, ...
|p|This paper presents results of experiments carried out to determine influence of graphene coating on tribological properties of surfaces of friction pairs. Within these experiments series of 24 h tribological tests of sliding friction between examined surfaces on specially designed measuring stand were conducted. Subject of study in these tests were electrolytic copper plated steel samples, additionally covered with graphene and, as a reference, identically prepared samples without the graphene layer. As a result of these experiments characteristics of coefficient of friction and temperature between surfaces, as well as changes in mass and rough-ness before and after tests were obtained. Based on these results improvement of tribological properties of sliding surfaces was shown.|/p|
TM 5-3895-373-20 1.14. ENGINE LUBRICATION SYSTEM. The main components of the engine lubrication system include the oil pump, oil cooler, oil filter, and oil pressure sensing devices. The lubrication of the engine is of the force feed type. The oil is circulated by a gear type pump internal to the engine balancer unit mounted to the bottom of the engine block inside the oil sump. The oil is drawn through a sump strainer tube to the pump. Oil is then pumped to the engine internal oil passages. The oil pump provides a high pressure oil flow to a through port on the engine oil adapter plate. A supply hose connected to the port routes the high pressure oil to the oil cooler and filter. A pressure tap off the high pressure port supplies oil to an engine oil pressure transmitter. The resistance of the transmitter changes based on the sensed oil pressure. A pressure gauge on the operator gauge panel displays the oil pressure. Inside the oil cooler high pressure oil flows through cooling vanes and into ...
Proper lubrication plays a critical role in improving equipment reliability as improper lubrication is one of the major causes of equipment failure. Therefore, it is important to monitor the condition of in-service lube oil to ensure the protection of critical rotating equipment.
TY - JOUR. T1 - Estimation of tribological properties on surface modified SiC by chlorine gas reaction at various temperatures. AU - Bae, Heung Taek. AU - Jeong, Ji Hoon. AU - Choi, Hyun Ju. AU - Lim, Dae-Soon. PY - 2009/9/1. Y1 - 2009/9/1. N2 - Carbon layers were fabricated on silicon carbide by chlorination reaction at temperatures between 1000°C and 1500°C with Cl2/H 2 gas mixtures. The effect of reaction temperature on the micro-structures and tribological behavior of SiC derived carbon layer was investigated. Tribological tests were carried out ball-on-disk type wear tester. Carbon layers were characterized by X-ray diffractometer, Raman spectroscopy and surface profilometer. Both friction coefficients and wear rates were maintained low values at reaction temperature up to 1300°C but increased suddenly above this temperature. Variation of surface roughness as a function of reaction temperature was dominant factor affecting tribological transition behavior of carbon layer derived from ...
Based on a theoretical model and an experimental methodology for defining the friction torque for lubricated conditions in a modified thrust ball bearing having only three balls, the authors experimentally investigated the influence of the lubricant parameter Λ on friction torque for mixed IVR (isoviscous rigid) and EHL (elastohydrodynamic) lubrication conditions. The experiments were conducted using ball diameters of 3 mm, 3.97 mm and 6.35 mm loaded at 0.125 N, 0.400 N and 0.633 N. Two oils of viscosity 0.08 Pa·s and 0.05 Pa·s were used and rotational speed was varied in the range 60-210 rpm to obtain a lubricant parameter Λ varying between 0.3 and 3.2. The experiments confirmed that the measured friction torque can be explained using hydrodynamic rolling force relationships respecting the transition from an IVR to an EHL lubrication regime.
Polyethylene wear is a significant clinical problem limiting the long-term survival of joint replacement prostheses, particularly in total hip arthroplasty (THA) and total knee arthroplasty (TKA). Although the tribology of joint replacement has consequently become an area of significant research, the effect of joint fluid on lubrication in the replaced joint has been largely overlooked. Several factors that affect the tribology of metal on polyethylene articulation in joint prostheses stem from the fluid lubricating the joint. In particular, the properties and composition of joint fluid likely contribute to fluid film lubrication and boundary lubrication in joint replacements, as they do in natural joints. The primary objective of this thesis is to examine the effect of natural variation in joint fluid composition and properties on friction, lubrication, and wear in joint arthroplasty. To achieve this goal, several parameters relating to the composition and mechanical properties of joint fluid ...
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The main synovial joints such as hips and knees are uniquely efficient tribological systems, able to articulate more than a wide range of shear rates with a friction coefficient involving the sliding cartilage surfaces as low as 0. 001 up to pressures of more than 100 atm. No human-made materials can match this. The means by which many of these surfaces maintain their very low friction has been intensively studied for decades and has been caused by fluid-film and boundary lubrication. Right 4 flex cena here, we focus especially about the latter: the decrease of friction by molecular layers at the moving cartilage surfaces. In particular, we discuss such lubrication in the light of very recent advances in our understanding of boundary effects in aqueous press depending on the paradigms of hydration lubrication and of the synergism between distinct molecular components of the synovial joints (namely hyaluronan, lubricin, and phospholipids) in permitting this lubrication ...
This paper focuses on the analysis of surfaces resulting from thickness reduction of aluminium strips, provided with lubricant reservoirs, and deformed with different lubricant viscosities and drawing velocities, by a specific experimental drawing process. During reduction, the lubricant is pressurized and may escape from its initial cavities and supply the neighbouring ones. The nature of the lubrication regime is thus locally changed and may vary from boundary to hydrodynamic. The deformed surfaces are measured by means of a Vertical Scanning Interferometer then analysed in terms of arithmetic roughness and developed roughness profile length. Since these two parameters are found not accurate enough to identify regions where different lubrication phenomena occurred, a method based on roughness peaks and valleys curvature radii estimation, recently developed by some of the present authors, is applied. The acquired surfaces are assumed as fractal surfaces and a multiscale decomposition of the ...
TY - JOUR. T1 - Influence of wet granulation and lubrication on the powder and tableting properties of codried product of microcrystalline cellulose with β-cyclodextrin. AU - Wu, J. S.. AU - Ho, H. O.. AU - Sheu, M. T.. PY - 2001. Y1 - 2001. N2 - The individual influence of wet granulation and lubrication on the powder and tableting properties of codried product of microcrystalline cellulose (MCC) with β-cyclodextrin (β-CD) was examined in this study. Avicel PH 101 and 301 were included for comparison. The codried product, Avicel PH 101 and 301 were granulated with water, and the granules were milled to retain three different size fractions: 37-60 μm, 60-150 μm, and 150-420 μm. The original Avicels and codried product were lubricated with magnesium stearate in three different percentages (0.2, 0.5, and 1.0%). The results showed that the powder flowability and disintegration of codried product and Avicels were significantly improved after wet granulation. However, the compactibility of ...
The first defense against chronic equipment failure is a solid preventive maintenance (PM) program. One of the more important aspects of a PM program is proper and periodic lubrication of rotating equipment. This computer based training program provides a thorough understanding of lubricant choices. Interactive aids make this a solid training and reference tool. Learn proper lubrication methods and how to analyze oil test results.. Discount pricing available! For more than ten users, please contact New Standard Institute by using the Contact Us form for multiple user discounts.. ...
The first defense against chronic equipment failure is a solid preventive maintenance (PM) program. One of the more important aspects of a PM program is proper and periodic lubrication of rotating equipment. This computer based training program provides a thorough understanding of lubricant choices. Interactive aids make this a solid training and reference tool. Learn proper lubrication methods and how to analyze oil test results.. Discount pricing available! For more than ten users, please contact New Standard Institute by using the Contact Us form for multiple user discounts.. ...
Machinery Lubrication offers information about lubricants, lubrication, hydraulics and oil analysis for industrial maintenance and reliability professionals
TY - JOUR. T1 - Effects of lubrication oil and solid lubricants on friction and wear properties of si-particle dispersed al sintering bearing materials. AU - Tsuru, Kenichi. AU - Matsumoto, Susumu. PY - 2013/9. Y1 - 2013/9. N2 - The tribological properties of the new developed Si-particle dispersed Al sintering materials were investigated. The materials impregnated lubricant oil, semi-solid state Vaseline with solid lubricant and solid state Vaseline were experimented by using two disc end sliding contact testing machine. (1) The impregnated semi-solid state Vaseline with MoS2 type solid lubricant has the effects on improvement of friction, wear and scuffing limit compared with the impregnated lubricant oil. The scuffing limit (PV value, P : contact pressure, V: sliding velocity) was improved about 45%. (2) The impregnated solid state Vaseline with MoS2 is effective in improvement of the tribological properties for sliding bearing materials. The scuffing limit was improved about 52% compared ...
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The introductory chapter gives a general description of the lubrication of rolling element bearings in refrigeration compressors and rheological properties of oil-refrigerant mixtures. The influence of refrigerants on the viscosity, pressure-viscosity coefficient and film forming ability in a EHD-contact is described. A method is described for measuring the viscosity of oil-refrigerant mixtures measured using optical interferometry film thickness. The effect of pressured natural gas on the viscosity of polyalkyleneglycols was measured ar pressures up to 10 MPa. Viscosity and pressure-viscosity coefficient was measured on different polyolesters mixed with refrigerant R- 134a. Optical film thickness measurements was used to compare film forming ability of polyolesters with different structure. Lubrication limits and wear of rolling element bearings operating in a refrigerant atmosphere was studied. A new method of supplying lubricants to refrigeration compressor using controlled superheat of the ...
Erectile Dysfunction (Erectile Problems / Psychogenic Impotence / Impotence / Sexual Weakness / Male erectile dysfunction/ ED) / Male Sexual Desire Disorder (Loss of Sexual Desire / Lack of Sexual Desire), Premature Ejaculation (Early Ejaculation / Early Orgasm / Fast Ejaculation / Quick ejaculation / PE), Male Orgasmic Dysfuntion (Delayed Ejaculation / Retarded Ejaculation / Anejaculation / Ejaculatory incopetence / Anorgasmia), Dyaspareunia (Pain during Sexual Contact), Female Sexual Desire Disorder (Loss of Sexual Desire / Lack of Sexual Desire), Female Sexual Arousal Disorder (Lack of Lubrication / Loss Of Lubrication), Female Orgasmic Dysfunction, Dyspareunia, Vaginismus, Fear of sexual intercourse/ Fear for sexual contact / Fear of pain during sexual contact, Unconsummated marriage / Infertility (Male Infertility / Female Infertility) / Marital Discord (Marital Problems / marital Conflict). ...
The objective was to evaluate the impact of additional lubricant on condom breakage and slippage. Two hundred and sixty-eight couples used 6 new and 6 aged condoms during vaginal intercourse and were instructed to use 2 of each type with either water-based lubricant, oil-based lubricant or no additional lubricant. The use of either oil-based or water-based lubricant increased slippage rates of new and aged condoms, although only one pairwise comparison (oil-based lubricant vs. no additional lubricant) was statistically significant (8.5% vs. 3.8%, P=0.004). The use of oil-based lubricant increased breakage, although not statistically significantly, in both new and aged condoms. Water-based lubricant did not impact the breakage rate of the new condoms and decreased the breakage rate of the aged condoms (no additional lubricant 4.5% vs. water-based lubricant 2.1%, P=0.029). From a functional perspective, this study suggests that condom users should be told not to use oil-based lubricants. The negative
The friction reducing capability of engine oils in the piston ring/cylinder bore contact was investigated under fully-flooded and starved lubrication conditions at 100° C using a laboratory piston ring/cylinder bore friction rig. The rig is designed to acquire instantaneous transient measurements of applied loads and friction forces at the ring/bore interface in reciprocating motion over a 50.8 mm stroke. The effects of increasing load and speed on the friction coefficient have been compared with new and used engine oils of different viscosity that were formulated with and without friction modifying additives. Test results with fully formulated engine oils containing molybdenum dithiocarbamate (MoDTC) show that friction is always lower than that obtained with non-friction modified oils but in regions of persistent starvation the coefficient of friction can increase significantly, approaching levels equivalent to fully-flooded non-friction modified formulations. The laboratory rig was able to ...
Cadaveric hip joints and prostheses were tested in a hip Function simulator which subjected the Femoral head to a cycle of loading and oscillation similar to that experienced during walking, and measured the Frictional torque transmitted to the acetabulum. For natural joints, silicone Fluids with viscosities From 10(^-2) Pa s to 30 Pa s were used as lubricants and Full Fluid Film lubrication was observed above 10(^-1) Pa s. Sodium carboxymethylcellulose solutions were also tested at the lower viscosities. Hyaluronic acid was added to one sample of synovial Fluid to increase its viscosity range and other synovial Fluid samples were digested enzymatically. Hyaluronidase digestion caused a significant increase in Friction Factor over the control samples whereas tryptic digestion had no consistent effect. No correlation between compliance of the cartilage and Frictional values was observed. Experimental prostheses with a compliant lining in the acetabular component were manufactured From a silicone ...
Aim Surface tribological properties of a tendon in terms of coefficient of friction and lubrication mechanism are expected to change with the progression of surface tears which can affect the optimal function of the tendon. This study investigated whether coefficient of friction proportionally increases with the progression of a surface tear in a bovine tendon model. Methods The study was performed using a pin-on-glass tribometer and bovine tendon samples (n = 16) divided into 4 groups. One group of tendons had no surface tears and thus served as a control, whilst the other 3 groups comprised tendons with increasing severity of artificially-induced surface tears. The coefficient of friction and the lubrication mechanism of the four groups of samples were investigated, calculated and compared. Results Statistical analysis showed significant change in coefficient of friction between the control group and the group with minimal tear (p , 0.05) while no difference noted between the groups of ...
A novel microtribometer is developed to characterize microelectromechanical systems (MEMS) sidewall friction with high resolution. The design is based on a rotational grating displacement sensing mechanism, with which 1.2-nm sensing sensitivity can be achieved. Employing it, the adhesion force (1.85 N) and the coefficients of static (0.801) and kinetic (0.363) frictions on the sidewall of an as-fabricated MEMS device have been measured. Besides these, the whole process of stick-slip associated with the movement under friction, including the transition between static and kinetic frictional states, has also been clearly revealed. To reduce friction, a localized lubrication method is developed, with which liquid lubricant can be applied directly onto the desired region without affecting other components on the same device. From the experimental results, reduced values in adhesion force (1.23 N) and coefficients of friction (0.262 for static and 0.183 for kinetic) are obtained in the same MEMS ...
Tribologys economic and commercial impact is vast. The science reduces energy use, lowers the cost of maintenance and replacement, develops new technology, and solves resource problems, such as the lack of clean water. Proper tribological procedures save an estimated 1.3% to 1.6% of a nations gross domestic product-a savings of hundreds of billions of dollars (U.S. currency) in larger countries. Virtually every nation has realized it cannot afford to overlook the economic, industrial, and commercial advantages of tribology. Consequently, tribology is a science that is constantly being advanced by thousands of researchers around the world. Lubrication engineering is the practical application of that science, generally in the development of lubricants and their proper usage and maintenance ...
aWashington, D.C. : ‡bNational Aeronautics and Space Administration ; ‡aSpringfield, VA : ‡bFor sale by the Clearinghouse for Federal Scientific and Technical Information, ‡c1971. ...
Get this from a library! Cavitation and Polyphase Flow Forum--1975 : [papers] presented at joint meeting of Fluids Engineering Division and Lubrication Division of the American Society of Mechanical Engineers, May 5-7, 1975, Minneapolis, Minnesota. [Robert L Waid; American Society of Mechanical Engineers. Polyphase Flow Committee.; American Society of Mechanical Engineers. Fluid Machinery Committee.;]
This advanced formula helps to maintain joint lubrication and promotes mobility, flexibility and full range of motion. This formula may also help to alleviate symptoms of osteoarthritis like pain, inflammation, and swelling.. Studies show that hyaluronic acid plays an important role in joint lubrication,1 has an analgesic effect in joints (thus reducing pain),2 and that people with rheumatoid arthritis have reduced levels of hyaluronic acid in their joints. 3 In addition, several studies have shown that intra-articular injection of hyaluronic acid can reduce many of the symptoms of osteoarthritis.4 While oral supplementation with hyaluronic acid is not the same as intra-articular injection, hyaluronic acid does have oral bioavailability,5 and many anecdotal reports support that oral supplementation with hyaluronic acid improves joint mobility and comfort in people with osteoarthritis ...
0057] Another embodiment of the present disclosure provides a system for regeneration of spent lubrication oil. Briefly, the system comprises a pretreatment unit, a rectification unit, and a multi-stage molecular distillation unit. The pretreatment unit functions to remove large precipitates and odor from the waste oil so that the pretreated waste oil is suitable for rectification. The rectification unit is fluidly coupled with the pretreatment unit to receive the pretreated waste oil, and functions to separate a light diesel fraction from the waste oil so that the rectified waste oil is suitable for molecular distillation. The multi-stage molecular distillation unit is fluidly coupled with the rectification unit and has two or more molecular distillation columns that are so configured to operate in a sequential manner, where each molecular distillation column operates at a different temperature, pressure or material residential time; such that each molecular distillation column functions to ...
Get this from a library! Isothermal elastohydrodynamic lubrication of point contacts : IV, starvation results. [Bernard J Hamrock; D Dowson; Lewis Research Center.; United States. National Aeronautics and Space Administration.]
Portland, Oregon Motorcycle Lubrication Service | Motorcycle Oil Change while you wait | Oil Analysis Service Beaverton, Oregon
Search and download thousands of Swedish university dissertations (essays). Full text. Free. Dissertation: Homogenization with applications in lubrication theory.
Loss of the primary lubrication system in the power transmission system can result in an immediate or rapid failure of the drive system of military air and ground vehicles. This proposal offers a combination of two innovative and cost-effective technologies to improve the ability of power transmissions to withstand operation under loss-of-lubrication condition for significantly longer periods of time. The goal of the Phase I program is to demonstrate the feasibility of the proposed technologies under real world conditions ...
Ravenel Ford is a business providing services in the field of Oil & Lubrication. The business is located in Ravenel, South Carolina, United States. Their telephone number is (843) 889-2241. YellowPagesGoesGreen.org provides an environmentally friendly search engine and directory vigorously supporting the green movement.
Hi-Tech Diagnostic Center is a business providing services in the field of Oil & Lubrication. The business is located in Baytown, Texas, United States. Their telephone number is (281) 838-1267. YellowPagesGoesGreen.org provides an environmentally friendly search engine and directory vigorously supporting the green movement.
On 22 January 2013, Graco organized a lubrication training in Moscow, Russia.. With the support of our Graco distributor, Petropump, 24 participants from all over Russia, Ukraine and Belarus took part in this event, organized in the training room of the Holiday Inn Moscow Vinogradovo Hotel.. Topics covered were the new electrical hose reel and the Fire-Ball™ pump, LD™ pump, LD, SD™, XD™ hose reels, GTP™ pump. The organization of this day was highly appreciated by all the trainees who were provided with Graco training certificates and a nice Graco T-shirt.. ...
This is a Brand New Dental Automatic Handpiece Cleaning &Lubrication System, coming strait out of the factory. This unit is Portable and very easy to use. Specification:. ...
Since ancient times, lubricants have been used to reduce friction and wear problems of mechanical systems. However, nowadays, there is a constant effort to improve their performance through additives so that they can accomplish properly in this modern world. In that sense, in this study, it was proposed the use of Poly(ε-Caprolactone) (PCL) as a biodegradable additive in Castor oil. The effect that this additive has on the tribological properties of AISI 4140 steel/Al2O3 tribosystem was analyzed. For this purpose, PCL was dissolved in Castor oil at 65 °C for 15 minutes. Later, once the lubricant formulations got into room temperature, friction tests were conducted with a ball-on-disk configuration. Several experiments were systematically carried out in order to study the factors that could influence the performance of the tribological system, for instance: additive concentration, velocity, temperature, and wear track radius. The kinetic friction coefficient was used to analyze the results as ...
The potential for lubricant trace evidence to be used as associative evidence is often overlooked in forensic investigations. Published studies in this area have focused on the identification of analytical techniques suitable for the detection of this evidence type. However, detection of trace lubricant is also dependent on the length of time it persists on skin and mucosal surfaces. The objective of this study was to investigate the effect of environmental conditions on the persistence of oil- and glycerol-based lubricants on skin surfaces. Lubricated skin samples exposed to three different test environments were swabbed at regular intervals over a 24-h period. Compounds of interest were extracted from the swabs and analyzed using gas chromatography-mass spectrometry (GC-MS). The effect of glycerol derivatization prior to GC-MS analysis was also investigated. In general, oil-based lubricants persisted longer than glycerol-based. Persistence on skin was greatest in lower temperature conditions ...
Most not cemented total hip replacements combine a titanium alloy stem, a CoCrMo femoral head and an uUltra High Molecular Weight Polyethylene (UHMWPE) acetabular cup. In spite of the suboptimal biocompatibility, the higher cost and some dfficulties in machining, CoCrMo alloy is often preferred to titanium alloys thanks to its outstanding tribological properties, higher hardness and elastic modulus. Therefore, nowadays most of the heads of hip prostheses use CoCrMo as bearing material. Biocompatibility problems of CoCrMo are often associated with a nickel content of up to 1% in this alloy. In some clinical situations such a nickel percentage cannot be neglected. The rationale of the present study was to investigate the effect of various surface treatments and combinations of treatments, such as electrochemical oxidation (anodization), laser surface treatments and barrel polishing, on the tribological properties of commercially pure grade 2 titanium. The goal was to find a surface treatment ...
Welcome to tribonet! Our goal is to popularize and raise awareness of tribology and its branches among students, engineers, researchers and enthusiasts. Latest news and developments, updates and upcoming events are gathered on tribonet. Everyone is welcome to contribute by sharing popular science articles, news, or updates and related codes and materials or contribute to tribology Wikipedia . ...
How Safe Are Lubricants For Your Partner. Lubrication occurs naturally during sexual intercourse. Lubrication happens only through stimulation. Many times women do not have naturally occurring lubrication. There can be several reasons for this.
Polyether Ether Ketone (PEEK), an engineering polymer with many advantages such as lightweight, high thermal stability, high strength coupled with toughness, has often been used as a substitute for metals in applications such as bearings, piston parts, pumps and even biomaterials. However, it shows high coefficient of friction (COF), in the range of 0.35 to 0.4 when it slides dry against a metal or other materials. High friction results in high wear rate and short component life when used in tribological applications, especially when contact stresses are high. This thesis seeks to solve the tribological problems of high friction and wear for PEEK by applying ultrathin (a few nanometer range) layers of perfluoropolyether (PFPE), Multiply-Alkylated Cyclopentane (MAC), 1-ethyl-3- methylimidazolium tetrafluoroborate ([EMIM][BF4]) and 1-butyl-3- methylimidazolium tetrafluoroborate ([BMIM][BF4]) lubricants on the surface of PEEK ...
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Treatment is largely preventative and involves a stepwise approach. First, aggressive lubrication with artificial tears is recommended. Over-the-counter preservative-free artificial tears are used FROM four times per day to every hour while awake, combined with artificial tear ointment at bedtime. If there is no relief with aggressive lubrication, a therapeutic bandage soft contact lens may be used to prevent further erosions. This specially designed contact lens is left on the eye for weeks to months without removal in an attempt to prevent further corneal abrasions and promote better healing. Antibiotic drops are used to prevent infections secondary to long-term therapeutic contact lens use. Most patients recover completely with aggressive lubrication and/or placement of a bandage contact lens. For the few patients that remain symptomatic with RES, other therapeutic options remain, including anterior stromal puncture or superficial keratectomy, the latter performed with either a scalpel or a ...
Lubricin is chondrocyte-secreted glycoprotein that primarily conducts boundary lubrication between joint surfaces. Besides its cytoprotective function and extracellular matrix (ECM) attachment, lubricin is recommended as a novel biotherapeutic protein that restore functional articular cartilage. Likewise, malfunction of lubrication in damaged articular cartilage caused by complex and multifaceted matter is a major concern in the field of cartilage tissue engineering. Although a noticeable progress has been made toward cartilage tissue regeneration through numerous approaches such as autologous chondrocyte implantation, osteochondral grafts, and microfracture technique, the functionality of engineered cartilage is a challenge for complete reconstruction of cartilage. Thus, delicate modulation of lubricin along with cell/scaffold application will expand the research on cartilage tissue engineering. In this review, we will discuss the empirical analysis of lubricin from fundamental interpretation to the
In order to study and evaluate the effect of sulfated ash in different diesel engine lubricants on the performance and durability of diesel particulate filter (DPF), the two engine oils of API CI-4 and CJ-4 with different sulfated ash levels are used respectively in the durability tests of two DPF systems. Moreover, the pressure drop, ash loading and filtration efficiency of the two DPFs, deposits in the inlets and outlets of the DPFs, intake flow rate and fuel consumption rates of engine are measured and compared. The test results show that: Compared to the API CI-4 which has more ash in the formulation than the API CJ-4, the API CJ-4 shows a markedly excellent performance on the lower ash loading and longer service interval and life for DPF, as well as lower fuel consumption rate for the diesel engine with DPF ...
An environmentally safe sugar mill journal bearing lubricant for use in the processing of sugar cane. The sugar mill journal bearing lubricant comprises a major amount of chewing gum base derived from synthetic or natural products to prevent metal to metal contact, and an edible triglyceride oil such as lard or canola oil. Additionally, a minor amount of high molecular weight polybutene, a USDA authorized extreme pressure additive, and/or an polymeric tackifier for increasing film strength and providing boundary lubrication may be included in the lubricant.
Low-friction sliding without lubrication - five working material concepts and tribological challenges. The most fundamental rule for achieving low-friction sliding is to keep the area of contact small and the shear stress low. Of course, this beneficial combination is most often realised by using hard contacting materials and adding a lubricant. However, in some cases fluid lubricants are undesirable, and in others they may temporarily or locally be missing even when intended to be present.. In the absence of a lubricant, the combined requirements of small contact area and low shear stress poses contradicting demands on the contacting materials. A small contact area requires a hard material (i.e. hard to deform plastically) while a low shear stress requires a superficial layer that is easy to deform plastically.. Fortunately, there are several possible routes for materials to get around the contradictory demands. All such possibilities share a common fundament; during tribological contact the ...
For all practical purposes, the useful life of a plastic component is equal to its fatigue life under conditions of cyclic loading such as those that occur in vibration. Equally important to materials engineers and designers are abrasion, friction and wear-tribological properties. Over 80 generic families are covered including thermoplastics, thermosets, thermoplastic elastomers and rubbers. Neat resins, blends and alloys, plastics with various combinations of fillers, additives and more are covered. Also covers plastics mated to plastics and metals ...
Blaster Silicone Lubricant contains a higher concentration of silicone than competitor brands, which provides longer-lasting lubrication. Formulated with Teflon™ Fluoropolymer to enhance performance. Its clear, non-evaporating formula eliminates wear from constant friction and is safe and non-staining. Features Teflon™ Fluoropolymer Enhances Performance Long-Lasting Lubrication Wont Accumulate Dust & Dirt
Microtribological properties of Langmuir-Blodgett (LB) films transferred from behenic acid (BehA), 2,4-heneicosanedione (HD) and its copper complex ((HD)2Cu) onto silicon surface were examined. To bet
The lubrication system is one of the main systems in the machine, which is a series of tools ranging from oil sumps, oil pumps, oil pipelines, and lubricating oil pressures to reach parts that require lubrication. The lubricant can be defined as a substance that lies between two relatively moving surfaces in order to reduce friction between the surfaces. Based on its form, lubricating oil can be classified into two forms, namely liquid (liquid) or commonly called oil, and semi-solid (semi-solid) or commonly called fat. Liquid oil (lubricant) can be classified based on several things, namely mineral lubricants (pelicans) derived from petroleum. The best minerals are used for automotive, ship, and industrial diesel engine lubricants. It is recommended for those of you who have a vehicle either a motorcycle or a car, you should do maintenance such as changing the oil or check your vehicle regularly, especially the problem of oil changes. No need to worry about where to change the oil. Just contact ...
Inspired by the microscopic architecture of articular cartilage, mechanically strong porous hydrogels with a bilayer structure are prepared. Compared to the nonporous hydrogel, the lubricant layer is retained at the interface and the interior of the porous structure even under large normal loads to give a lo
Background. Men who have sex with men (MSM) are at high risk for HIV acquisition and transmission. There is a high HIV-transmission potential associated with unprotected anal intercourse (UAI), which requires sexual lubrication for comfortable, non-traumatic anal sex. Lubricant distribution remains poor in many developing nations and MSM have been known to substitute a number of common household or food products to ensure comfortable anal sex. Concern has been raised about the potential toxicity of lubricants used during anal sex. Epithelial injury is related to the osmolality of the lubricant product. Objective. To analyse commercially available water-based sexual lubricant products to ascertain their osmolality and potential to cause rectal epithelial damage. Methods. The osmolality and glycerol concentration was determined for eight of the most frequently purchased water-based sexual lubricants and some commonly used household/food products. Results. Osmolality ranged from 270 - 9 440 mosmol/l
JAX is a US-based industrial lubricant manufacturer with expertise formulating high-performance synthetic lubricants, fleet and heavy-duty lubricants, industrial lubricants and biodegradable and food-grade lubricants. Since 1955, JAX has earned a worldwide reputation as a leader in emergent lubrication technology.. ...
Mobil Industrial Lubricants: A Legacy of Innovation, Advanced Technology and Productivity. For more than a century, the team behind Mobil Industrial Lubricants has been delivering premium products and comprehensive maintenance solutions that help companies boost productivity, enhance the performance and life of their equipment, increase profitability, reduce downtime, and stay ahead of the competition.. Today, Mobil Industrial Lubricants are used extensively in many industrial market sectors - including power generation, general manufacturing, metal working, food and beverage processing, pulp and paper, cement, construction, metals and mining.. Proven Synthetic Technology. For companies that rely on equipment that is often subjected to extreme operating conditions, such as high temperatures, extreme loads and pressures, excessive moisture or high speeds, Mobil SHC lubricants and greases offer an ideal solution. Thats because they are formulated with application specific performance in mind and ...
Lubricants are used in various applications where an entry of substances into the environment cannot be completely avoided, especially when used for loss lubrication of rails, points, block trains or for sealing purposes and similar fields of application where high lubricant losses occur during the intended use. Also, loss lubrication during wood cutting causes the release of approximately 10,000 tons of chain lubricants into the environment per year. Even during the intended use of hydraulic fluids in agriculture and forestry as well as in the building industry significant quantities may escape in an uncontrolled way into the environment due to leakages and other defects. If the lubricants include components that are toxic to humans or the environment or have insufficient biodegradability, these releases into the environment can have an adverse effect on soil and water. This negative effect should be minimized in order to preserve intact ecosystems and avoid indirect impact on human health ...
Results We enrolled 141 women (34% identified as White, 40% Black, 26% Hispanic; the median age was 33 years (IQR=25-44)). Overall, 71% reported ever having AI, and 8% reported AI as current means of contraception. Overall, 18% reported AI over the past month, and among these women, the median number of monthly AI acts was 2 (IQR=1-3), 50% reported unprotected AI, 8% reported anal douching, and 58% reported using lubricant during AI. Commercial lubricants (38%), saliva (23%), petroleum jelly (15%), and lotion (12%) were the most commonly reported lubricants. The prevalence of HIV was 27% and HSV-2 was 57%. In multivariable analysis, AI was associated with testing positive for HIV (aOR=7.8 (95% CI=1.6 to 37.6)) and HSV-2 infection (aOR=3.3 (95% CI=1.2 to 9.1)) controlling for age, race, and lifetime sexual partners.. ...
This post explains the difference between H1, H2, and H3 classifications and offers a list of Interflon food-safe lubricants. ... Food-grade or food-safe lubricant is the name given to any industrial lubricant that is considered safe for incidental contact with items that .... ...
GoStik is a solid stick lubricant designed to eliminate uncomfortable chafing and skin irritation. It is excellent for runners, cyclists, triathletes, and swimmers, along with anyone who experiences chafing during athletic or on-the-job activities. GoStik is particularly popular with military and police personnel. Its commonly used around clothing neck openings, under arms, between thighs, backs of ankles, balls of feet, or anywhere skin rubs against skin, fabric, leather, rubber, etc. GoStik was created to provide a fragrance-free formula with better lubrication and a higher melting point than Chamois Buttrs competitors. This enables anyone to use the product for longer periods of time. GoStiks non-viscous, non-greasy spot lubricant stays where you put it, and will not stain skin or clothing. This is Chamois Buttrs first lubrication product that is not a cream. While GoStik will lubricate any area to which it is applied, a stick lubricant is best used for areas other than your chamois ...
GoStik is a solid stick lubricant designed to eliminate uncomfortable chafing and skin irritation. It is excellent for runners, cyclists, triathletes, and swimmers, along with anyone who experiences chafing during athletic or on-the-job activities. GoStik is particularly popular with military and police personnel. Its commonly used around clothing neck openings, under arms, between thighs, backs of ankles, balls of feet, or anywhere skin rubs against skin, fabric, leather, rubber, etc. GoStik was created to provide a fragrance-free formula with better lubrication and a higher melting point than Chamois Buttrs competitors. This enables anyone to use the product for longer periods of time. GoStiks non-viscous, non-greasy spot lubricant stays where you put it, and will not stain skin or clothing. This is Chamois Buttrs first lubrication product that is not a cream. While GoStik will lubricate any area to which it is applied, a stick lubricant is best used for areas other than your chamois ...
GoStik is a solid stick lubricant designed to eliminate uncomfortable chafing and skin irritation. It is excellent for runners, cyclists, triathletes, and swimmers, along with anyone who experiences chafing during athletic or on-the-job activities. GoStik is particularly popular with military and police personnel. Its commonly used around clothing neck openings, under arms, between thighs, backs of ankles, balls of feet, or anywhere skin rubs against skin, fabric, leather, rubber, etc. GoStik was created to provide a fragrance-free formula with better lubrication and a higher melting point than Chamois Buttrs competitors. This enables anyone to use the product for longer periods of time. GoStiks non-viscous, non-greasy spot lubricant stays where you put it, and will not stain skin or clothing. This is Chamois Buttrs first lubrication product that is not a cream. While GoStik will lubricate any area to which it is applied, a stick lubricant is best used for areas other than your chamois ...
GoStik is a solid stick lubricant designed to eliminate uncomfortable chafing and skin irritation. It is excellent for runners, cyclists, triathletes, and swimmers, along with anyone who experiences chafing during athletic or on-the-job activities. GoStik is particularly popular with military and police personnel. Its commonly used around clothing neck openings, under arms, between thighs, backs of ankles, balls of feet, or anywhere skin rubs against skin, fabric, leather, rubber, etc. GoStik was created to provide a fragrance-free formula with better lubrication and a higher melting point than Chamois Buttrs competitors. This enables anyone to use the product for longer periods of time. GoStiks non-viscous, non-greasy spot lubricant stays where you put it, and will not stain skin or clothing. This is Chamois Buttrs first lubrication product that is not a cream. While GoStik will lubricate any area to which it is applied, a stick lubricant is best used for areas other than your chamois ...
... lubrication (e.g. motor oil), and the manufacture of many types of paints, plastics, and other materials. Specially prepared ...
Fluid lubrication[edit]. A schematic of a journal bearing under a hydrodynamic lubrication state showing how the journal ... Fluid lubrication results in a full-film or a boundary condition lubrication mode. A properly designed bearing system reduces ... There are three main types of lubrication: full-film condition, boundary condition, and dry condition. Full-film conditions are ... They are also more prone to initial wear because lubrication does not occur until there is rotation of the shaft. At low ...
Lubrication[edit]. This section does not cite any sources. Please help improve this section by adding citations to reliable ... it provides slightly more efficient lubrication. This lubrication method eliminates the user's need to mix the gasoline at ... Other two-stroke engines might pump lubrication from a separate tank of two-stroke oil. The supply of this oil is controlled by ... However, with direct fuel injection and a sump-based lubrication system, a modern two-stroke engine can produce air pollution ...
Chapter 5, Cast bullet lubrication.. *^ "A solvent for petroleum jelly aka Vaseline - Model Rail Forum". Retrieved 2012-10-18. ... Lubrication[edit]. Petroleum jelly can be used to lubricate zippers and slide rules. It was also recommended by Porsche in ... Skin lubrication[edit]. Petroleum jelly can be used to reduce the friction between skin and clothing during various sport ... maintenance training documentation for lubrication (after cleaning) of "Weatherstrips on Doors, Hood, Tailgate, Sun Roof". The ...
... lubrication; water distillation and separation; air conditioning; refrigeration; and water systems on board the vessel. They ...
Lubrication. Brakes and Braking. Buffers and Coupling. Parts and Attachments for Wagons. Special Steels.[clarification needed] ...
Lubrication. - Best & Lloyd semi-automatic drip feed to engine : grease cups to all shackle pins Body. - Sheet metal, well ...
The internal lubrication is inserted by means of a vacuum when riveting the chain together. Standards organizations (such as ... Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning ... O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally ... "What is MicPol?". Lubrication. Retrieved 3 October 2018. Chains operating at high speeds comparable to those on motorcycles ...
The November 1954 edition of Lubrication Magazine (Published by The Texas Company, later known as Texaco) featured a story ... Over-used ATF often has reduced lubrication properties and abrasive friction materials (from clutches and brake bands) ... as well as gear lubrication. ATF is also used as a hydraulic fluid in some power-assisted steering systems, as a lubricant in ... Lubrication. Vol. 40 no. 11. New York, NY: The Texas Company. November 1954 [1954]. pp. 129-135. https://www.youtube.com/watch? ...
PTFE is often found in musical instrument lubrication products; most commonly, valve oil. PTFE is used in some aerosol ... toughness and self-lubrication at low temperatures down to 5 K (−268.15 °C; −450.67 °F), and good flexibility at temperatures ... Mishra & Yagci, p 573 "What is MicPol?". Lubrication. Retrieved 3 October 2018. Bayside Marine https://www.baysidemarine.co.uk/ ...
A ring oiler or oil ring is a form of oil-lubrication system for bearings. Ring oilers were used for medium-speed applications ... The oil ring is effectively a simple lubrication pump, with only one moving part and no complex or high-precision components. ... As speeds or bearing loads later increased, forced pressure lubrication became more prevalent and the ring oiler fell from use ... but the bearing capacity required more lubrication than could be supplied by a drip feed oiler. For this reason they were ...
Lubrication. Cartridge's internal plastic drive belt (critical). HP improvements on the 3M design: Tape tension is controlled ... which eliminated the need for lubrication. Minimum tape tension at the head was increased, the drive force to spin the drive ...
Lubrication Engineering. 57 (11) - via ResearchGate. Oil Analysis. ...
Lubrication 2. Fluid Matter 1. Fluids In General 333. Fluidity 334. Gaseity 335. Liquefaction 336. Vaporization 2. Specific ...
"How to Read an Oil Can". Machinery Lubrication. Retrieved 2018-03-18. CS1 maint: discouraged parameter (link). ...
CS1 maint: discouraged parameter (link) "EnPro Acquires Manufacturers of Lubrication Systems for Compressors". Machinery ... Lubrication. Archived from the original on May 8, 2013. Retrieved April 26, 2013. CS1 maint: discouraged parameter (link) " ...
Reduction of frictional losses and through more efficient lubrication is a key target in order to reduce carbon dioxide ... However, this means that an increased number of components operate under boundary lubrication conditions. This has led to a ... They are particularly important in the boundary lubrication regime, where they can prevent solid surfaces from coming into ... Hardy, W. B.; Doubleday, Ida (1922-03-01). "Boundary Lubrication. The Paraffin Series". Proceedings of the Royal Society of ...
Lubrication Engineering. 1945. "Google Ngram Viewer". books.google.com. Retrieved 9 May 2018. Hassenzahl, M. & Tractinsky, N. ...
"SiC Lubrication". Cerma. Studt, P. (1987). "Influence of lubricating oil additives on friction of ceramics under conditions of ... boundary lubrication". Wear. 115 (1-2): 185-191. doi:10.1016/0043-1648(87)90208-0. Friedrichs, Peter; Kimoto, Tsunenobu; Ley, ...
Hatton MN, Loomis RE, Levine MJ, Tabak LA (September 1985). "Masticatory lubrication. The role of carbohydrate in the ...
It exists to promote research and development of lubrication technology. It also publishes industry standards for greases. The ... Cowan, Sandy (January 2007). "What is NLGI?". Machinery Lubrication. Noria Corporation. Retrieved 2012-02-09. CS1 maint: ...
Lubrication Engineering. 60: 34-36. Retrieved 27 June 2017. Tonazzi, D.; Komba, E. Houara; Massi, F.; Le Jeune, G.; Coudert, J ... "Differences in Mechanisms for Fretting Wear Reduction between Oil and Grease Lubrication". Tribology Transactions. 60 (3): 497- ...
Alongside Ida Doubleday, he introduced the concept of boundary lubrication. Hardy was named as one of the 23 "Men of Tribology ... "Boundary lubrication.- The paraffin series". Proceedings of the Royal Society of London. Series A, Containing Papers of a ... Journal of Lubrication Technology. 101 (4): 393-397. doi:10.1115/1.3453381. ISSN 0022-2305. v t e. ...
Journal of Synthetic Lubrication. 10 (1): 23-45. doi:10.1002/jsl.3000100103. Cann, P. M., M. Aderin, G. J. Johnston, and H. A. ... Lubrication Engineering. 48 (8): 633-38. Anon (2017). "Aderin-Pocock, Dr Margaret Ebunoluwa". Who's Who. ukwhoswho.com (online ...
Lubrication Science. 11 (2): 175-85. doi:10.1002/ls.3010110205.. ...
Lithium Complex". Machinery Lubrication. Retrieved 2020-11-26. CS1 maint: discouraged parameter (link). ...
"Lubrication fundamentals". 1980. Mobil oil corporation. Marcel Dekker. 460 pages. ISBN 0-8247-6976-7 Dixon, S. L. "Fluid ...
J. M. Herdan (1997). "Lubricating Oil Additives and the Environment - an Overview". Lubrication Science. 9. doi:10.1002/ls. ...
CS1 maint: discouraged parameter (link) "Pall Corporation Named a Top Green Company by Newsweek". Machinery Lubrication. ...
Greases Compoundings Chemical Market Review Machinery lubrication Lubrication - The presence of a material to reduce friction ... Aqueous lubrication is of interest in a number of technological applications. Strongly hydrated brush polymers such as PEG can ... The growth of lubrication accelerated in the Industrial Revolution with the accompanying use of metal-based machinery. Relying ... Typically the lubricant-to-surface friction is much less than surface-to-surface friction in a system without any lubrication. ...
Vaginal lubrication is a naturally produced fluid that lubricates a womans vagina. Vaginal lubrication is always present, but ... Oral contraceptives may also increase or decrease vaginal lubrication. Older women produce less vaginal lubrication and reduced ... genital vasodilation and increase in vaginal lubrication. Insufficient lubrication or vaginal dryness in women can cause ... Without sufficient lubrication, sexual intercourse can be painful to women as well as their male partners. The vaginal lining ...
... leading to a mixed-lubrication or boundary lubrication regime. Boundary lubrication (also called boundary film lubrication): ... Machinery Lubrication magazine International Council for Machinery Lubrication Engineers Edge Lubrication Forum Journal of ... which are called lubrication regimes: Fluid film lubrication is the lubrication regime in which, through viscous forces, the ... Mixed lubrication: This regime is in between the full film elastohydrodynamic and boundary lubrication regimes. The generated ...
THERE are four very common lubrication errors, says a practical motorist, that are responsible for a great many operating ...
Acoustic or sonic lubrication occurs when sound (measurable in a vacuum by placing a microphone on one element of the sliding ... The frequency of sound required to induce optimal vibration, and thus cause sonic lubrication, varies with the size of the ... The protagonist in the videogame Shadow Complex can acquire a "friction dampener" that uses acoustic lubrication; this enables ... there could be many other applications for acoustic lubrication, particularly where variable friction is required or ...
Lubrication of Joints. Br Med J 1964; 1 doi: https://doi.org/10.1136/bmj.1.5383.629 (Published 07 March 1964) Cite this as: Br ...
... SNL housings in the 30, 31 and 32 series with labyrinth or taconite seals are intended for grease lubrication. For ... TURT or TURA for oil bath or circulating oil lubrication system (→ Seals for oil lubrication) ... Oil lubrication SNL housings in the 30, 31 and 32 series can be used in applications where there are relatively high speeds and ... The two dimples on the outer sides of the central ridge indicate the position for lubrication holes for the seals. ...
... For grease fills and grease life the same information is valid for Y-bearing units as is for Y-bearings. ... For additional information, refer to Lubrication or contact the SKF application engineering service. ...
Lubrication & Coating Laboratory in the Department of Material Science and Engineering at The University of Texas at Arlington ... Tribology, Lubrication & Coating Laboratory. TLCL was established over 15 years ago and has been funded by grants totaling over ... Instrumented In house developed Ball on Cylinder tester for Lubrication Testing. *Instrumented Ring on Block and Ring on ... Instrumented In house developed Ball on Cylnder tester for Lubrication Testing. *Instrumented Ring on Block and Ring on ...
When it comes to Lubrication products, Graingers got your back. Effortless ordering and convenient delivery. Log-in or ... Motor Driven Precision Metering Lubrication Pump, Feeds: 4, 50 psi, Lubrication Type: Grease or Oil. Brand. LDI INDUSTRIES. ...
Lubrication is a American Black Ale style beer brewed by Clown Shoes in Ipswich, MA. 3.6 average with 315 ratings, reviews and ... O- Overall, Lubrication is a pretty solid black ale that is definitely worth a try.. 462 characters. cjgator3, Oct 06, 2011 ... Lubrication from Clown Shoes Beer rating: 3.6 out of 5 with 315 ratings ...
lubrication. How can I help my boyfriend be more sex-positive?. Anonymous asks: My boyfriend and I have been together for ... When we first started, I faked a lot of orgasms, because I often wasnt getting enough natural lubrication to finish, a lot of ...
Searching for ARO Lubrication products? Graingers got your back. Easy ordering & convenient delivery. Log-in or register for ...
Baksheese as crude Social Lubrication. You can pay a guy. You want an item or a service, he asks Cash of the Realm. You may ... When we say lubrication, were usually talking about axle grease or Vaseline or WD40. Some physical substance is what comes ... The stores or restaurants or workplaces are the places where we use the social lubrication that is an integral part of us. ... Im not sure I agree with the statement but the point is made: the exact lubrications to make everything work differs country ...
Get Lubrication Nipple pictures and royalty-free images from iStock. Find high-quality stock photos that you wont find ...
lubrication synonyms, lubrication pronunciation, lubrication translation, English dictionary definition of lubrication. v. lu· ... lubrication. Also found in: Thesaurus, Medical, Idioms, Encyclopedia, Wikipedia.. Related to lubrication: Hydrodynamic ... Lubrication - definition of lubrication by The Free Dictionary https://www.thefreedictionary.com/lubrication ... lubrication. [ˌluːbrɪˈkeɪʃən] N (Aut) → lubricación f, engrase m. Collins Spanish Dictionary - Complete and Unabridged 8th ...
More Efficient Lubrication. Lubricants and base stocks address key challenges for applications such as transmissions, axles, ...
The role of organic carbon and metals from lubrication oil on particle formation was investigated under selected engine ... Mining Publication: Role of Lubrication Oil in Particulate Emissions from a Hydrogen-Powered Internal Combustion Engine. ... studies suggest that trace metals emitted by internal combustion engines are derived mainly from combustion of lubrication oil ...
Lubrication can make penetration easier and help prevent tearing the condom. Here is a list of some not recommended for latex ... Lubrications make penetration easier and help prevent the condom from tearing. Some condoms come with lubrication. Water-based ... What should I know about lubrications and condom use?. ...
... www.ferret.com.au showcases products from suppliers of Bearing Lubrication and other related products and services. ... A chemically operated lubrication system, GreaseMax® provides continuous lubrication at a constant rate for a set period, ... Home > Industrial Consumables > Lubricants and Oils > Bearing Lubrication * You might also like: ... 03/06/11 - Delta Distribution presents the GreaseMax continuous automatic lubricators designed for fan bearing lubrication. ...
excellent lubrication and wetting properties. While it is possible to properly apply the liquid coating 12b with the use of a ... The lubrication thus becomes part of the magnetic coating. These lubricants have been identified as a major source of problems ... 11, 1975 SURFACE LUBRICATION OF MAGNETIC MEDIA The invention described herein was made in the performance of work under NASA ... Good wettability of the surface 90 by the liquid of film 12b ensures lubrication of those elements of the magnetic tape such as ...
Here are 6 vitamins and supplements that may help increase female lubrication. ... Stress, anxiety, decreased blood flow, and dehydration are a few other factors that may contribute to decreased lubrication (. ... Topical gels and suppositories containing hyaluronic acid have also been shown to increase vaginal lubrication when used alone ... Vitamin E suppositories have been shown to improve vaginal lubrication and improve symptoms of vaginal atrophy. However, more ...
Lubrication systems supplier SKFs new-generation automated lubrication systems meet the requirements for effective lubrication ... Lubrication systems supplier SKFs new- generation automated lubrication systems meet the requirements for effective ... New-generation SKF centralised lubrication systems are specifically designed to supply multiple lubrication points or groups of ... SKFs automated lubrication systems include centralised systems for mobile plants and forklifts, combined oil and grease ...
Attention: Either you have JavaScript disabled or your browser does not support JavaScript. To work properly, this site requires that you enable JavaScript.. ...
"New Insight Into Joint Lubrication That Keeps Osteoarthritis At Bay." Medical News Today. MediLexicon, Intl., 2 Apr. 2006. Web. ... Morgan, K. (2006, April 2). "New Insight Into Joint Lubrication That Keeps Osteoarthritis At Bay." Medical News Today. ... However, a recent study by other researchers found that degradation of joint lipids had little effect on their lubrication, ... little is still known of its etiology and details of the boundary lubrication mechanism have remained unclear," Zauscher said ...
This might sound like a stupid question but with the humidity skyrocketing here in the south, I need to know. I use a grease to lube the areas of my E
... lubrication scheduling system uses carefully developed programmes to monitor and schedule your operations lubrication ... Programs for scheduling and monitoring lubrication activities. Lubricants and fluids have a big impact on your operations. ... Contact us for more information about Castrol lubrication scheduling, or to discuss the service with an expert. ...
... unplanned downtimes and ensures high system availability through maintenance free long-term lubrication. ... The installation of an automatic alternator lubrication system prevents early bearing losses, ... Automatic Alternator Lubrication Retrofit. The installation of an automatic alternator lubrication system prevents early ... The automatic alternator lubrication system allows reliable and precise lubrication round the clock. ...
... reliable Graco automatic lubrication systems and components for all manufacturing, transportation, maintenance, and industrial ... Automatic Lubrication Systems. Automatic Lubrication Systems and Components Protect hardworking rigs and equipment with tough, ... Graco offers automatic lubrication systems and components for all manufacturing, transportation, maintenance, and industrial ...
"Our ultimate goal is to determine how much lubrication is lost after a knee injury. If youre walking on a non-lubricated joint ... "In this study, we were able to quantify loss of lubrication "" which has important implications for preventing osteoarthritis ... But it is not known how changes in lubrication can positively or negatively impact cartilage damage. ... Knee Injury Causes Decrease in Lubrication, has Implications for Arthritis. by Sam Savage ...
  • Vaginal dryness is the condition in which this lubrication is insufficient, and sometimes artificial lubricants are used to augment it. (wikipedia.org)
  • Kluber Lubrication , a worldwide manufacturer of specialty lubricants, introduced Kluberplex ELM 44-80 Arctic, a heavy-duty grease for mining and quarrying equipment in extreme cold-weather applications. (thefreedictionary.com)
  • citation needed] Besides the study of landslides, there could be many other applications for acoustic lubrication, particularly where variable friction is required or traditional lubricants can't be used. (wikipedia.org)
  • Flange lubrication on high rail is a well known way to reduce wear since the middle of 70th and a number of techniques to lubricate the rail flange are developed as grease, aerosol of oil and dry stick with solid lubricants. (diva-portal.org)
  • The work to evaluate effectiveness of the lubrication started 1997 there one of the important matter concern the possibility to use environmentally adapted lubricants without hazard the rail. (diva-portal.org)
  • Today s modern equipment requires precision lubrication with specific lubricants administered through best practices to sustain reliability, maximize life cycles and generate profits. (webwire.com)
  • As lubricants continue to play a vital role in ensuring the smooth operation of vehicles on the road, Castrol provide expertise in Constant Velocity (CV) joint greases and a wide variety of On-Car applications designed for lifetime lubrication. (castrol.com)
  • Because lubrication management plays an important role in reducing costs and improving productivity, success almost always depends on finding the right single source of lubrication products and services to meet complex needs," says Phil Grellier, global solutions development manager for Dow Corning Molykote lubricants. (reliableplant.com)
  • Lubrication engineering is the practical application of that science, generally in the development of lubricants and their proper usage and maintenance. (stle.org)
  • You know what I mean those incredible claims about lubricants and lubrication, that over time, evolved into urban legends. (machinerylubrication.com)
  • This course focuses on understanding the FSMA, how it impacts your lubrication program and the lubricants used. (noria.com)
  • Munich, 18th July, 2014 - Under the motto "powerful, naturally", Klüber Lubrication will be presenting its efficient and eco-compatible speciality lubricants for ships, offshore installations and other marine applications at the SMM 2014, hall A3, stand 309. (klueber.com)
  • Besides the most recent product developments, Klüber Lubrication will be presenting further high-performance lubricants for marine applications at the SMM 2014. (klueber.com)
  • Klüber Lubrication is one of the world's leading manufacturers of speciality lubricants, offering high-end tribological solutions to virtually all industries and markets worldwide. (klueber.com)
  • During its more than 80 years of existence, Klüber Lubrication has provided high-quality lubricants, thorough consultation and extensive services, which has earned it an excellent reputation in the market. (klueber.com)
  • 2018. "Facilitating the Study of the Texturing Effect on Hydrodynamic Lubrication" Lubricants 6, no. 1: 18. (mdpi.com)
  • Bearing Performance Under Extreme Pressure Conditions (Bearings and Bushings) Dicronite dry lubrication is commonly used to extend the life or increase the load carrying capacity of rotating or sliding elements beyond that obtained with wet lubricants only. (globalspec.com)
  • Lubrication is the process or technique of using a lubricant to reduce friction and wear and tear in a contact between two surfaces. (wikipedia.org)
  • BACKGROUND OF THE INVENTION All magnetic tapes require some form of lubrication in order to reduce the coefficient of friction generated with tape motion relative to a fixed magnetic recording head, for example. (google.com)
  • In the present study, we evaluated the friction and wear attributes of three variations of the coating under a boundary lubrication regime. (sae.org)
  • It includes the study and application of the principles of friction, lubrication and wear. (stle.org)
  • Without lubrication, direct metal contact removes the protective oxide layer on the gear metal, and the excessive heat generated by friction welds the surfaces at the contact points. (engineersedge.com)
  • The advantage to using these types of lubrication techniques is due to the fact that one will be able to identify and address the most important friction points along the motion control system. (globalspec.com)
  • Description: Like our Industrial Automation Lubrication , the Mobile Chassis Lubrication can eliminate the need for costly daily maintenance on the friction points in your mobile equipment. (globalspec.com)
  • Friction, lubrication, adhesion, and wear are prevalent physical phenomena in everyday life and in many key technologies. (worldcat.org)
  • However, with the development of mechanical manufacturing technology, high temperature and pressure during the friction process make the oil work not so well, which requires enhancing the lubrication characteristics of oil. (hindawi.com)
  • Based on a theoretical model and an experimental methodology for defining the friction torque for lubricated conditions in a modified thrust ball bearing having only three balls, the authors experimentally investigated the influence of the lubricant parameter Λ on friction torque for mixed IVR (isoviscous rigid) and EHL (elastohydrodynamic) lubrication conditions. (mdpi.com)
  • The experiments confirmed that the measured friction torque can be explained using hydrodynamic rolling force relationships respecting the transition from an IVR to an EHL lubrication regime. (mdpi.com)
  • Olaru, D.N. Rolling Friction Torque in Ball-Race Contacts Operating in Mixed Lubrication Conditions. (mdpi.com)
  • This PhD thesis focus on friction in elastohydrodynamic lubrication (EHL), found in, among others, gears, bearings and cam followers. (dissertations.se)
  • The hole in the centre of the cap or the hole in the base should be used to relubricate spherical roller bearings with a relubrication feature (a lubrication groove and holes in the outer ring) ( fig. 2 ). (skf.com)
  • SNL housings in the 30, 31 and 32 series can be used in applications where there are relatively high speeds and the bearings are lubricated via an oil bath or circulating oil lubrication system. (skf.com)
  • Transmission lubrication system is directly related to transmission internal shafts, gears, bearings, synchronizers, and other component working performances and life cycles. (thefreedictionary.com)
  • Adequate lubrication allows smooth, continuous operation of machine elements, reduces the rate of wear, and prevents excessive stresses or seizures at bearings. (wikipedia.org)
  • Lubrication is required for correct operation of mechanical systems such as pistons, pumps, cams, bearings, turbines, gears, roller chains, cutting tools etc. where without lubrication the pressure between the surfaces in close proximity would generate enough heat for rapid surface damage which in a coarsened condition may literally weld the surfaces together, causing seizure. (wikipedia.org)
  • Further, the supplier's automated lubrication systems function while machinery continues to operate and, while bearings, bushes, shafts or conveyors are moving, ensuring that oil and grease are distributed consistently across all moving surfaces. (engineeringnews.co.za)
  • The upgrade package enables an automatic lubrication of the alternator bearings. (gepower.com)
  • The introductory chapter gives a general description of the lubrication of rolling element bearings in refrigeration compressors and rheological properties of oil-refrigerant mixtures. (diva-portal.org)
  • Lubrication limits and wear of rolling element bearings operating in a refrigerant atmosphere was studied. (diva-portal.org)
  • It seems to me that when I fly and apply vigorous attitude adjustments the bearings are sufficiently loaded to require Lubrication. (diydrones.com)
  • Description: Low viscosity mineral oil designed for non-critical, general purpose lubrication such as bearings and gears operating under moderate loads and temperatures, machine tools, and electric motors. (globalspec.com)
  • The proper lubrication of electric motor bearings is essential to maintaining them in peak operating condition and, ultimately, in reducing unnecessary downtime. (theengineer.co.uk)
  • This technical bulletin from Exxonmobil is intended to serve as a guide to the proper lubrication of electric motor bearings utilising grease as a lubricant. (theengineer.co.uk)
  • These bearings are usually closed and have their own lubrication, so no additional lubrication is needed. (reprap.org)
  • Long life lubrication to bearings. (exportersindia.com)
  • The study of lubrication is a discipline in the field of tribology. (wikipedia.org)
  • To advance the science of tribology and the practice of lubrication engineering in order to foster innovation, improve the performance of equipment and products, conserve resources and protect the environment. (stle.org)
  • STLE organizes, supports, co-sponsors and hosts meetings to provide the tribology and lubrication communities an opportunity to network, exchange ideas and information. (stle.org)
  • The new edition of STLE's Emerging Issues and Trends in Tribology and Lubrication Engineering report offers tribology and lubricant professionals valuable insight into future technical challenges and commercial opportunities for the field during the next 10 years. (stle.org)
  • At the SMM 2014, the experts from Klüber Lubrication will be pleased to answer all questions visitors may have regarding the subject of tribology at the high seas. (klueber.com)
  • Henkel is at EMO Hannover 2017 to showcase the superior cost-efficiency and sustainability of its innovative Bonderite duaLCys process compared to conventional cooling lubrication and cleaning processes. (emo-hannover.de)
  • New-generation SKF centralised lubrication systems are specifically designed to supply multiple lubrication points or groups of points with varying amounts of precisely metered lubricant from one central reservoir. (engineeringnews.co.za)
  • 14/05/08 - Tecalemit A'Asia offers garage equipment, centralised lubrication systems and lubrication and fuel equipment. (ferret.com.au)
  • We are offering fluid greases for centralised lubrication systems. (exportersindia.com)
  • Contact between raised solid features, or asperities, can also occur, leading to a mixed-lubrication or boundary lubrication regime. (wikipedia.org)
  • Boundary lubrication (also called boundary film lubrication): The hydrodynamic effects are negligible. (wikipedia.org)
  • Boundary lubrication is also defined as that regime in which the load is carried by the surface asperities rather than by the lubricant. (wikipedia.org)
  • Mixed lubrication: This regime is in between the full film elastohydrodynamic and boundary lubrication regimes. (wikipedia.org)
  • Considering the extensive impact and consequences of osteoarthritis, little is still known of its etiology and details of the boundary lubrication mechanism have remained unclear," Zauscher said. (medicalnewstoday.com)
  • Their lubrication ability in the boundary lubrication regime has been examined by Atomic Force Microscopy with colloidal probe. (diva-portal.org)
  • Vaginal lubrication is a naturally produced fluid that lubricates a woman's vagina. (wikipedia.org)
  • Vaginal lubrication is always present, but production increases significantly near ovulation and during sexual arousal in anticipation of sexual intercourse. (wikipedia.org)
  • As a consequence, VIP induces an increase in vaginal blood flow accompanied by an increase in vaginal lubrication. (wikipedia.org)
  • The findings suggest that VIP may participate in the control of the local physiological changes observed during sexual arousal: genital vasodilation and increase in vaginal lubrication. (wikipedia.org)
  • Oral contraceptives may also increase or decrease vaginal lubrication. (wikipedia.org)
  • Older women produce less vaginal lubrication and reduced estrogen levels may be associated with increased vaginal dryness. (wikipedia.org)
  • Some women (particularly Sub-Saharan women) practice dry sex, which involves the removal of vaginal lubrication in some way. (wikipedia.org)
  • Vitamin E suppositories have been shown to improve vaginal lubrication and improve symptoms of vaginal atrophy. (healthline.com)
  • Topical gels and suppositories containing hyaluronic acid have also been shown to increase vaginal lubrication when used alone or combined with other ingredients like vitamin A and vitamin E ( 5 , 16 ). (healthline.com)
  • Elastohydrodynamic lubrication: Mostly for nonconforming surfaces or higher load conditions, the bodies suffer elastic strains at the contact. (wikipedia.org)
  • At full film elastohydrodynamic lubrication, the generated lubricant film completely separates the surfaces. (wikipedia.org)
  • SNL housings in the 30, 31 and 32 series with labyrinth or taconite seals are intended for grease lubrication. (skf.com)
  • Lubrication systems supplier SKF's new- generation automated lubrication systems meet the requirements for effective lubrication of moving surfaces integral to almost all industrial and machinery applications. (engineeringnews.co.za)
  • When it comes to food processing, effective lubrication is fundamental to reliable and efficient manufacturing. (noria.com)
  • Just a small amount is needed for effective lubrication. (tredz.co.uk)
  • The installation of an automatic alternator lubrication system prevents early bearing losses, unplanned downtimes and ensures high system availability through maintenance free long-term lubrication. (gepower.com)
  • Castrol's Liquid Engineers recognize that the automotive industry is always changing and component producers are looking for solutions to ensure trouble free long term lubrication. (castrol.com)
  • Castrol provides Constant Velocity (CV) joint greases and a wide variety of On-Car applications designed for lifetime lubrication. (castrol.com)
  • The viscosity of oils and base oils of lubricating greases from Klüber Lubrication can be determined by means of the known kinematic viscosity at 40 °C and 100 °C. The higher the viscosity index, the lower the viscosity change of an oil at fluctuating temperatures. (klueber.com)
  • In hydrodynamic lubrication, the motion of the contacting surfaces, as well as the design of the bearing, pump lubricant around the bearing to maintain the lubricating film. (wikipedia.org)
  • Much as in hydrodynamic lubrication, the motion of the contacting bodies generates a flow induced pressure, which acts as the bearing force over the contact area. (wikipedia.org)
  • To facilitate fundamental study of the surface texturing effect on hydrodynamic lubrication, analytical and experimental tools are required. (mdpi.com)
  • Gachot, C. Facilitating the Study of the Texturing Effect on Hydrodynamic Lubrication. (mdpi.com)
  • As the load increases on the contacting surfaces, distinct situations can be observed with respect to the mode of lubrication, which are called lubrication regimes: Fluid film lubrication is the lubrication regime in which, through viscous forces, the load is fully supported by the lubricant within the space or gap between the parts in motion relative to one another object (the lubricated conjunction) and solid-solid contact is avoided. (wikipedia.org)
  • SKF's automated lubrication systems include centralised systems for mobile plants and forklifts, combined oil and grease systems for materials handling robots, as well as dry lubricant sprays for conveyors and guide-rail surfaces. (engineeringnews.co.za)
  • In this study, we were able to quantify loss of lubrication "" which has important implications for preventing osteoarthritis. (redorbit.com)
  • This proposal offers a combination of two innovative and cost-effective technologies to improve the ability of power transmissions to withstand operation under loss-of-lubrication condition for significantly longer periods of time. (sbir.gov)
  • Using plant-derived oils like soybean oil as a form of lubrication is nothing new to companies that operate and maintain machinery. (machinerylubrication.com)
  • But it is not known how changes in lubrication can positively or negatively impact cartilage damage. (redorbit.com)
  • Well, in many key areas, word has indeed arrived, announcing it is both safe and rewarding to begin making systematic changes in lubrication. (machinerylubrication.com)
  • Many organizations are mired in old cultures and legacy practices when it comes to machinery lubrication and reliability. (webwire.com)
  • Jim Fitch, a founder and CEO of Noria Corporation , has a wealth of experience in lubrication, oil analysis, and machinery failure investigations. (machinerylubrication.com)
  • Of course, these early discoveries marked the dawn of machinery lubrication. (machinerylubrication.com)
  • Much has changed since those momentous events in machinery and lubrication antiquity. (machinerylubrication.com)
  • We are planning a series of articles in Machinery Lubrication and Practicing Oil Analysis magazines to commemorate these historical events. (machinerylubrication.com)
  • US-based fluid-handling products and technology firm Colfax launched a new business titled Total Lubrication Management, which it says will provide oil, gas and chemical processing facilities with a holistic approach to lubrication of rotating machinery. (hydrocarbonprocessing.com)
  • To those who are beginning the quest for knowledge in oil analysis and machinery lubrication, learning and comprehending terms, concepts and facts that seem like a foreign language can be a major. (machinerylubrication.com)
  • As a seminar presenter on the topic of machinery lubrication, much of my time is spent instructing people on how to develop and maintain a world-class lubrication program. (machinerylubrication.com)
  • The International Council for Machinery Lubrication is offering the exam for Level II Machinery Lubrication Technician (MLT II). (machinerylubrication.com)
  • Machinery Lubrication magazine provides tactical and strategic insights that help keep plant equipment running at peak performance. (noria.com)
  • The correct lubrication is an operative and economic factor that can hardly be overestimated: in most applications a properly lubricated chain should last for at least 15,000 operating hours before it should need changing due to wear. (thefreedictionary.com)
  • Castrol provides products for various components in power train, designed for lifetime lubrication, provide no stick-slip, minimum wear, low noise, efficiency and elastomer compatibility. (castrol.com)
  • That's because they are formulated with application specific performance in mind and are designed to deliver exceptional lubrication, helping to reduce operating temperatures, minimize component wear and extend oil change intervals compared to Exxon Mobil's conventional mineral oil based products. (theengineer.co.uk)
  • Proper lubrication will make your machine run smoothly, will suppress or even remove ugly noises and reduce wear and tear of your components. (reprap.org)
  • Providence, RI "" Researchers have found an association between inflammation from knee injuries and a progressive loss of joint lubrication, which may predispose people to arthritis. (redorbit.com)
  • JOINT SUPPORT: Hyaluronic Acid supports joint lubrication, function and comfort. (amazon.com)
  • Near ovulation, cervical mucus provides additional lubrication. (wikipedia.org)
  • The closed ones have their own lubrication and no additional lubrication is needed while open ones need additional lubrication. (reprap.org)
  • Generally this condition occurs when inadequate lubrication film thickness permits metal to- metal contact between gear teeth. (engineersedge.com)
  • However, more research is needed to determine how oral supplementation with hyaluronic acid alone may affect female lubrication. (healthline.com)
  • Although more studies are needed, hyaluronic acid may improve female lubrication when used in supplement, suppository, or gel form. (healthline.com)
  • Maximum Strength Hyaluronic Acid Plus, 100mg,180 Capsules, Powerfully Supports Skin Hydration & Joints Lubrication. (amazon.com)
  • Many industrial processes use lubrication for increasing the life of the tools and improving the performances of the products. (utwente.nl)
  • Noria helps companies enable reliability through better lubrication processes. (noria.com)
  • This type of system ensures that every lubrication point, particularly those in hard- to-reach or dangerous areas, receives an exact and carefully programmed level of oil or grease at appropriate intervals and, if necessary, in the appropriate sequence, eliminating the risk of environmental contamination caused by overlubrication. (engineeringnews.co.za)
  • As an added benefit, maintenance of an SKF centralised lubrication system is generally limited to topping up the lubricant reservoir and an occasional inspection of the lubrication points. (engineeringnews.co.za)
  • Acoustic or sonic lubrication occurs when sound (measurable in a vacuum by placing a microphone on one element of the sliding system) permits vibration to introduce separation between the sliding faces. (wikipedia.org)
  • The automatic alternator lubrication system allows reliable and precise lubrication round the clock. (gepower.com)
  • Furthermore the integration to the unit control system allows a continuous monitoring of the lubrication system and control system notifications in case of incidents. (gepower.com)
  • Sea trials of Silverstream Technologies' new air lubrication technology for ships, the Silverstream System, showed net energy efficiency savings in all analyzed cases. (environmentalleader.com)
  • Abstract Loss of the primary lubrication system in the power transmission system can result in an immediate or rapid failure of the drive system of military air and ground vehicles. (sbir.gov)
  • Our goal is to provide bottom-line improvements in operations, lower overall costs, and deliver an orderly, safe and clean lubrication system. (hydrocarbonprocessing.com)
  • a detailed plan for system lubrication points - plus preventive maintenance - that keeps the facility s lubrication system clean and functional at all times. (hydrocarbonprocessing.com)
  • a customized program to sustain the lubrication system in a highly efficient, green, safe manner. (hydrocarbonprocessing.com)
  • Facilities also need to understand the various contamination types (biological, physical and chemical threats), along with ensuring their lubrication program uses a lubricant identification system and proper lubricant storage and handling. (noria.com)
  • Manufacturers Service Inc., Wixom, MI, is an electrically activated module package containing a solenoid that can be integrated into a machine's control system to provide a desirable lubrication cycle to meet users' needs. (metalformingmagazine.com)
  • Our organization is involved in supplying an eclectic array of products out of which is centralised lubrication system. (exportersindia.com)
  • In simple terms, a multi-viscosity oil, such as 10W-40, means that the oil will pour and flow like a 10-weight oil at very low temperatures yet offer the same lubrication ability as 40-weight oil when the engine reaches operating temperatures. (batterystuff.com)
  • In addition it was recorded that any increase of starting torque, caused by viscosity changes in the lubrication, resulted in considerable heat generation within each bearing. (industrysearch.com.au)
  • Poor practices here will resonate through all other areas of lubrication. (reliableplant.com)
  • While the lubrication field is rich in folklore, some of these legends are harmful to the progress of lubrication and best practices. (machinerylubrication.com)
  • Learn the best practices for machine lubrication and oil analysis. (noria.com)
  • Due to the strong coupling between lubricant hydrodynamic action and the elastic deformation in contacting solids, this regime of lubrication is an example of Fluid-structure interaction. (wikipedia.org)
  • The classical elastohydrodynamic theory considers Reynolds equation and the elastic deflection equation to solve for the pressure and deformation in this lubrication regime. (wikipedia.org)
  • Description: Through a network of facilities worldwide, Lubrication Sciences International provides Dicronite dry lubrication . (globalspec.com)
  • Developed as part of NASA's space exploration program, Dicronite® by Lubrication Sciences International is the trusted dry lubrication technology for the aerospace, plastics molding, medical devices, mechanical equipment, semiconductor and food processing industries. (globalspec.com)
  • Without sufficient lubrication, sexual intercourse can be painful to women as well as their male partners. (wikipedia.org)
  • However, besides making sexual intercourse painful for the female, the practice is believed to increase the risk of transmitting sexually transmitted diseases for both partners, such as HIV, whose risk of transmission is increased by lacerations in the vaginal tissue resulting from the lack of lubrication. (wikipedia.org)
  • This mucus, together with great quantity of mucus produced by the vaginal mucosity is responsible for the adequate lubrication during the sexual intercourse. (cerebromente.org.br)
  • Demand for new heavy duty transmissions with improved fuel economy and reliability while reducing maintenance costs is a key market driver for the development of efficient lubrication systems [1, 2, 3, 4]. (thefreedictionary.com)
  • Ideal program managers understand the relationship lubrication has with reliability. (reliableplant.com)
  • The examples presented in this article revolve around the idea that by elevating the status of lubrication personnel, an area can increase the reliability of its equipment. (machinerylubrication.com)
  • Lubrication in Inland and Coastal Water Activities describes the various products available and gives an overview of the technical and environmental aspects of biolubricants. (routledge.com)
  • Klüber Lubrication, set up as a retail company for mineral oil products in Munich in 1929, is today part of Freudenberg Chemical Specialities SE & Co. KG, a Business Group of the Freudenberg Group, Weinheim. (klueber.com)
  • Our data suggest that the longer and more branched carbohydrate side chains on C-PSLex provide lower interpenetration and better hydration lubrication at low loads compared to the shorter carbohydrate chains on C-P55. (diva-portal.org)
  • Protect hardworking rigs and equipment with tough, tested lubricators and complete lubrication systems. (graco.com)
  • Under general supervision, the Lubrication & Equipment Service Worker is responsible for troubleshooting the inspection, lubrication and maintenance of equipment on campus, repairs of small mechanical equipment and assisting the trades with major equipment repairs. (umanitoba.ca)
  • Find great deals on automotive lubrication equipment and accessories daily! (harborfreight.com)
  • Tecalemit has been a name synonymous with lubrication equipment since the 1920's, and commenced manufacturing operations in Australia in 1941. (ferret.com.au)
  • It is estimated that 40 to 60 percent of all equipment failures can be attributed to improper lubrication. (webwire.com)
  • Part of Colfax Fluid Handling, the business brings the combined knowledge of global lubrication experts with innovative services and programs, plus equipment from Colfax brands such as Allweiler, Baric, Imo, LSC and Warren. (hydrocarbonprocessing.com)
  • An oil reservoir attached to an air line that provides automatic air-borne lubrication to air operated power consuming equipment by means of venturi action. (rocol.com)
  • Shop for transmission fluid exchange machines, grease guns, transfer pumps, oil extractors and many other lubrication items, all sold at great prices and deep discounts. (harborfreight.com)
  • Automation of alternator lubrication replaces the regular manual greasing by a technician. (gepower.com)
  • Procedures require enough detail for the lubrication technician to perform the task accurately. (reliableplant.com)
  • Graco offers automatic lubrication systems and components for all manufacturing, transportation, maintenance, and industrial applications. (graco.com)
  • applications: universal joints, geared motors, enclosed gearboxes with high loads, where lubrication is essentially provided by centralized lubrication systems. (exportersindia.com)
  • 03/06/11 - Delta Distribution presents the GreaseMax continuous automatic lubricators designed for fan bearing lubrication. (ferret.com.au)
  • When we say 'lubrication', we're usually talking about axle grease or Vaseline or WD40. (hubpages.com)
  • The governing equations of the hydrodynamic theory of lubrication and some analytical solutions can be found in the reference. (wikipedia.org)
  • Unfamiliar with lubrication terminology? (rocol.com)
  • On 22 January 2013, Graco organized a lubrication training in Moscow, Russia. (graco.com)
  • A lubrication boosting additive comprising a mixture of a fluororesin, which is an alternating copolymer of a fluoroolefin and vinyl ether, soluble in an organic solvent and a phthalic ester in an organic solvent. (google.com)
  • 1. A lubrication boosting additive comprising 100 parts by weight of a fluororesin which consists essentially of an alternating copolymer of a fluoroolefin and a vinyl ether and which is soluble in an organic solvent, from 50 to 500 parts by weight of an organic solvent for said fluororesin, and from 1 to 50 parts by weight of a phthalic ester. (google.com)
  • 2. A lubrication boosting additive according to claim 1, wherein said solvent is a member selected from the group consisting of ketones, esters, ethers, halogenated hydrocarbons, aromatic hydrocarbons and mixtures thereof. (google.com)
  • 3. A lubrication boosting additive according to claim 2, wherein said solvent is xylene. (google.com)
  • 4. A lubrication boosting additive according to claim 2, wherein said solvent is ethylene glycol monobutyl ether. (google.com)
  • 5. A lubrication boosting additive according to claim 1, wherein said phthalic ester is dioctyl phthalate or dibutyl phthalate. (google.com)
  • 6. A lubrication boosting additive according to claim 1, wherein said fluororesin has carboxyl groups introduced in an amount of from 0.01 to 10 parts by weight per 100 parts by weight of said copolymer. (google.com)
  • 7. A lubrication boosting additive according to claim 1, wherein said fluoroolefin is represented by the formula, CF 2 CFX, in which X represents a halogen and said vinyl ether is represented by the formula, CH 2 CHOR, in which R represents an alkyl group, a cycloalkyl group, a hydroxyalkyl group or a carboxyalkyl group. (google.com)
  • 9. A lubrication boosting additive comprising 100 parts by weight of a fluororesin which consists essentially of an alternating copolymer of a fluoroolefin and a vinyl ether and which is soluble in an organic solvent, from 30 to 300 parts by weight of xylene, from 10 to 200 parts by weight of ethylene glycol monobutyl ether, and from 1 to 50 parts by weight of dioctyl phthalate. (google.com)
  • Noria Corporation will conclude the presentation with several documented lubrication success case studies. (webwire.com)
  • Noria is compiling a timeline to chronicle these lubrication milestones, from the earliest discoveries to significant modern contributions in the second half of the last century. (machinerylubrication.com)
  • What are lubrication and cleaners? (tredz.co.uk)
  • Lubrication and cleaners are vital for keeping your bike in good working order. (tredz.co.uk)
  • Who needs lubrication and cleaners? (tredz.co.uk)
  • In the realm of automotive maintenance and engine longevity, lubrication is a necessity. (harborfreight.com)
  • under Periodic Maintenance Scheadule, beside engine checks 'Clean the oil jet for clutch lubrication. (advrider.com)
  • Safety is a priority in all areas of maintenance, and lubrication is no different. (reliableplant.com)
  • STLE establishes connections and educates maintenance and lubrication engineers in Latin America. (stle.org)
  • Lubrication PMs are no longer considered a trivial maintenance necessity. (machinerylubrication.com)