Why should one-way needle bearing surface of the grease?

by:Waxing     2020-05-23
The rolling bearing lubrication purpose is to reduce the bearing internal friction and the friction losses, prevent burning stick, the lubrication effect is as follows: ( 1) , reduce friction and friction losses. In the form of bearing ring, rolling body and touch each other part of the retainer, prevent metal contact, reduce friction and wear. ( 2) And prolonging fatigue life. Fatigue life of rolling bearing, in the rotation, good lubrication performance of the rolling contact surface, are extended. On the contrary, the oil viscosity is low, the thickness of lube film is not good, is shortened. ( 3) , discharge frictional heat and cooling. Circulation method to oil and so on can oil discharge by the friction heat, or by an external sound of heat, cooling. Prevent hotbox, prevent the lubricating oil of aging itself. ( 4) , other also has to prevent foreign body into the bearing internal, or to prevent rust and corrosion effect. Methods: lubricating bearing lubrication method, divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, to choose suitable for conditions of use, the purpose of lubrication method. If only consider lubrication and oil lubrication. However, grease lubrication can simplify the structure of bearing the surrounding of the special features, compare the pros and cons of grease lubrication and oil lubrication.
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