For import bearing sealing, production has to fill in at the appropriate grease, open the bearing set the seal on a host computer, in order to prevent the leakage of grease.
This has become a problem of the bearing grease.
Note fat content is too little, it is easy to result in the lack of fat or dry friction, impact longevity.
Grease can lead to excessive bearing temperature rise.
Grease a large number of leakage, not only pollute the environment, and waste.
Therefore, into the imported bearing grease quantity under the premise of better bearing, in order to ensure adequate lubrication.
Lubrication friction: the mechanical friction resistance, in the film is formed on the surface of the part.
Cooling temperature, heat can be taken away by oil circulation and prevent the sintering.
Clean: through the flow of oil, cleaning the surface of the friction parts and other metal production materials.
Sealing leak proof: reduce the gas leakage and external contaminants.
Rust, can adsorption on the surface, in order to prevent water, air, acid, harmful gases and contact area.
Buffer: a sharp rise in the engine cylinder pressure, sudden increase of piston, piston pin, connecting rod and crankshaft in import of oil in the bearing load can withstand the shock load buffer.
Fat loss there are three main reasons: chemical reasons: part of the heating and air friction lubrication effect, base oil and thickener was oxidized, lead to grease structure was damaged, the damage softening.
Physical reasons: because some friction in operation, and under the constant shear stress of grease, soap structure damage, soften loss.
Impurities of reasons: the body produces sportswear, metal powder can accelerate organic acids, fat, fat oxidation, thus destroy the structure and failure caused by grease.
According to the equipment running status,
Including load, temperature, speed, etc. )
The use of correct selection of grease, extend the life of the grease.