Bearing contact fatigue strength
Under the action of periodic load, the contact Bearing surface of bearing is prone to fatigue failure, that is, cracking and peeling, which is the main damage form of bearing. Therefore, in order to improve the service life of the bearing, the bearing must have high contact fatigue strength.
Processing performance
In the production process, bearing parts have to go through many cold and hot processing procedures. In order to meet the requirements of mass production, high efficiency and high quality, the bearing should have good processing performance. For example, cold and hot forming performance, cutting performance, hardenability, etc.
Role of lubrication
When the bearing works, in order to ensure the effective and reliable operation of the bearing, there must be sufficient lubrication. Function of bearing lubrication:
Prevent or reduce the direct contact between the rolling elements, raceways and cages in the bearing to reduce friction and wear.
Oil film is formed on the friction surface. When the pressure oil film is formed, Bearing the contact bearing area of parts can be increased. Therefore, it can reduce the contact stress and prolong the rolling contact fatigue life.
