TIMKEN bearing conditions - to the requirement of lubricant bearing knowledge

TIMKEN bearing on the basic requirement of lubricants usually of lubricant has the following basic requirements: ( 1) With sufficient lubrication, that is, can reduce the friction of TIMKEN bearings and curb harmful in TIMKEN bearing wear process, friction resistance, anti-wear ability. ( 2) To prevent rusting of the TIMKEN bearings, itself does not cause of TIMKEN bearing parts ( Such as copper cage, rubber seals, etc. ) The corrosion, deterioration or deformation. ( 3) Can work within the prescribed temperature upper limit and lower limit range, always maintain the necessary lubrication performance, stable chemical composition, viscosity changes little. ( 4) The prescribed work within the scope of the upper and lower limits of rotating speed, can build up enough thick oil film; Itself clean and contains no impurities, good defoaming. ( 5) In the requirements of the work within the time limit or inventory period, physical properties and chemical properties stable enough, does not affect the use of lower quality. ( 6) Maintenance, maintenance is simple and accessory device as little as possible. ( 7) On the premise of meet the technical requirements, makes every effort to save on the economy. Additional requirements for lubricant ( 1) Good cooling effect. ( 2) On the surface of the lubrication has strong adhesion, leakage and dripping or jilt scatter is likely to be less; Good water separation. ( 3) With a little impurity ( Classification of water) Does not affect its performance. ( 4) Sealing effect, can prevent water or dirt from entering the TIMKEN bearings. ( 5) Not easy to pass vibration or to reduce noise. ( 6) To implement centralized lubrication. Special requirements in the special conditions of lubricants, lubricants must be put forward special requirements: (as follows 1) Long life demand was exceptionally long service life of the lubricant. ( 2) Low friction torque required lubricant friction resistance is very low. ( 3) The requirements of high temperature resistant requirements can withstand temperatures up to above 250 ℃. ( 4) The requirement of low temperature resistant requirement ability - The low temperature under 63 ℃. ( 5) Resistance to the requirements of high vacuum requirements under the condition of high vacuum, non-volatile, don't be lost, not bad, especially in the high vacuum condition of weightlessness. ( 6) Harmlessness requirements used in food, pharmaceutical or chemical machinery, require even with slightly less lubricant mixed with food or drugs, chemical products, also does not cause food poisoning, drug modification or chemical products metamorphism. ( 7) Boundary lubrication characteristics of a good requirement.