CA SERIES

First, contact fatigue strength  
Bearing under the action of periodic load, the contact surface is very easy to attack fatigue damage, that is, the emergence of cracking and peeling, which is an important damage situation of bearings.  Therefore, in order to improve the service life of bearings, bearing steel must have high contact fatigue strength.  Two, wear resistance  
When bearing tasks, not only rolling friction occurs between the ring, the rolling body and the support frame, but also sliding friction occurs, so that the bearing parts have been wearing.  In order to increase the wear of bearing parts, maintain the stability of bearing accuracy and extend the service life, bearing steel should have good wear resistance.  
Three, hardness  
Hardness is one of the important qualities of bearing quality, which has indirect influence on contact fatigue strength, wear resistance and elastic limit.  The hardness of bearing steel in use is up to HRC61~65, which enables the bearing to obtain higher contact fatigue strength and wear resistance.  
Four, rust resistance  
In order to avoid the corrosion and rust of bearing parts and finished products in the process of processing, storage and use, the bearing steel should have good rust resistance.  
Five, processing performance  
Bearing parts in the consumption process, to go through many cold and hot processing processes, in order to meet the requirements of a small amount, high efficiency and high quality, bearing steel should have good processing performance.  For example, cold and hot forming performance, cutting performance, hardenability and so on.