For sealing import bearings, production has set up a file in the appropriate grease, open bearing on the main engine setting seal to prevent leakage of grease. This has to be a problem of bearing grease. Note too little fat content, it is easy to cause the lack of fat or dry friction, influence life. Grease can lead to excessive temperature rise of bearing. Leak of a large amount of grease, not only the pollution of the environment, and waste. Therefore, into the import amount bearing greases under the premise of better bearing, to ensure adequate lubrication.
Lubrication friction: mechanical friction resistance to, in the film on the surface of the part of the form. Cooling temperature: through the oil circulation take away heat, prevent sintering. Clean: through the flow of oil, clean working surface friction parts and the metal production of other materials. Seal leak: reduce gas leakage and external pollutants. Corrosion: can the adsorption on the surface, to prevent water, air, acid, harmful gases and contact area. Buffer: a sharp rise, engine cylinder pressure, sudden increase of the piston, piston pins, and crankshaft connecting rod import bearings on the oil can withstand the shock load load a buffer role.
The loss of oil there are three main reasons: chemical reason, part of the heating and air friction lubrication effect, base oil and thickener by oxidation, lead to grease structure damage, use the softening of the loss. Physical reason: because of the operation of the friction, constant shear stress in the oil, soap structure damage, soften loss. Impurities reason: the body produces sports clothing, metal powder can accelerate organic acid, grease, fat oxidation, thus destruction structure, cause fat failure. According to the operation of equipment status (including load, temperature, speed, etc), prolong the service life of the grease to choose the right use of grease.
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