1. The spherical roller shaft is wear-resistant and will not corrode metal;

2. Good oxygen resistance and aging resistance, durable;

3. Bearings are resistant to high and low temperatures. It does not synthesize and soften at high temperatures and does not harden at low temperatures;

4. The spherical roller shaft is compatible with the working medium, without swelling, synthesis, hardening and other phenomena；

5.Appropriate elasticity and hardness, less permanent deformation after compaction.