Bearing Material: Characteristics of Bearing Steel

Bearing steel is the most common material used in bearings, and GCr15 is the most widely used. According to the specific understanding, share the characteristics of bearing material bearing steel, and hope that you can purchase the most suitable bearings.

1. Contact fatigue strength

Under the action of cyclic load, the contact surface is prone to fatigue damage. Therefore, in order to prolong the service life of the bearing, the bearing steel must have high contact fatigue strength.

2. Wear resistance

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

3. Hardness

Hardness is one of the important qualities of bearing quality, and it has indirect effects on contact fatigue strength, wear resistance, and elastic limit. The hardness of bearing steel under operating conditions should reach HRC61~65, so that the bearing can achieve high contact fatigue strength and wear resistance.

4. Anti-rust performance

In order to avoid corrosion and rust of bearing parts and finished products during processing, storage and use, bearing steel should have good rust resistance.

5. Processing performance

During the processing of bearing parts, many cold and hot working procedures are required, and the bearing steel should have good processing performance. For example, cold and hot formability, machinability, hardenability, etc.