Support Center Bearing 74 21 096 141 21096141 for Renault 70mm

Wear resistance of bearings

During the bearing task, not only rolling friction occurs between the ring, rolling element and the cage, but also sliding friction occurs, so that the bearing parts are constantly worn. In order to increase the wear of bearing parts, maintain bearing accuracy and stability, and extend service life, bearing steel should have good wear resistance.

Hardness of the bearing

Hardness is one of the important qualities of bearing quality and has an indirect influence on contact fatigue strength, wear resistance, and elastic limit. The hardness of the bearing steel under the operating conditions must reach HRC61~65, which enables the bearing to achieve higher contact fatigue strength and wear resistance.

Anti-rust performance of bearings

In order to prevent bearing parts and finished products from being corroded and rusted during processing, storage and use, it is requested that the bearing steel should have good rust resistance.

Bearing contact fatigue strength

Bearing under the action of periodic load, it is easy to cause fatigue damage when contacting the surface, that is, cracks and peeling appear, which is an important damage situation of the bearing. Therefore, in order to improve the service life of the bearing, the bearing steel must have a high contact fatigue strength.

Processing performance of bearing

In the production process, bearing parts have to go through many cold and hot processing procedures. In order to meet the small quantity, high efficiency and high quality requirements, the bearing steel should have good processing performance. For example, cold and hot forming performance, cutting performance, hardenability, etc.

Image description