Selection of deep groove ball bearing grease on the importance of stability

1, anti-rust properties
Rust inhibitor is best to not dissolve in water, has good adhesion, a layer of film can be formed in the steel surface.angular contact ball bearing
2, the mechanical stability
If the mechanical stability of the grease is not enough, the operation of the process, makes the structure of the grease of the soap cause mechanical disintegration, caused by grease is destroyed, loss of lubrication.
3, seal
The seal is necessary to protect the deep groove ball bearings and lubricants from external contamination barrier, TIMKEN the bearing during operation, debris or moisture can not penetrate TIMKEN bearings, to avoid causing its d estruction.
4, mixing oils and fats
Do not mix incompatible grease, if the two incompatible grease mix, usually its consistency becomes soft, it may eventually easy to loss caused by TIMKEN bearing damage due to grease.
5, the classification of oils and fats
The consistency of the grease and lubricating ability is influenced by the operating temperature, operating at a temperature of TIMKEN bearings must choose the right consistency and good lubricating effect at the same temperature of the grease.
Under normal circumstances, deep groove ball bearings, grease filled, always exceeds the actual requirements directly involved in the lubrication into the holding rack and the cavity of the bearing cover and form an outline of the periphery of the rolling element. In this process, due to the resistance of the excess grease, the bearing temperature rise very fast. Although most of the excess grease is squeezed out early in the operation, and squeeze the gre ase in the roller attachment may still be turning the scroll body into the raceway. Bearing the early stages of most of the grease quickly (less than one minute) was out of the raceway, and accumulate in the protection grease with the bearing rotor cycle at the same time, one after another small amount of discharge. When the bearing temperature continues to rise, and go together stage until the excess bearing grease all been discharged, may be called grease, grease quality, TIMKEN bearing structure and the filling factor, this time may last more than a dozen minutes or even hours.contact ball bearing
After the rest of the bearing grease is completely discharged, the remaining small amount of grease in rolling element raceway, the mutual contact surface of the cage, Ji wedge formed by a thin layer of grease film to enter the normal stages of bearing . At this time the temperature gradually decreased and reached the equilibrium state. In other words, the long-term lubrication, mainly rely on this layer of grease film to bear. In addition, long-term operation of the process of bearing, near the contour of the rolling element and raceway and cage grease to shrink the separation of part of the base oil flow into the raceway between the lubrication also have a supplementary role .
Bearing grease in the bearing in the formation of the opening of the contour is not the same, we must form a contour very draft, to go together a short time, bearing in the long-term operating temperature is low, but stable, this is an ideal grease, so the grease into drainage is especially important.
Some so-called eddy current type of grease is not difficult to form the outline, even though the formation of the contour is also easy to collapse, then repeated back to the excess grease roll hang on long-term is strongly mixing situation, TIMKEN th e bearing torque, high temperature, and uneven, also may produce noise, the grease perishable and loss.angular ball bearing