1) The interference between the seal and the inner ring is small, because the seal lip is slender, the seal lip pressure is reduced, and the torque is lower.

2) The seal lip is in contact with the outer slope of the seal groove of the inner ring, and the grease is splashed outward under the action of centrifugal force, so the dustproof performance is excellent.

3) Since the sealing lip touches the outer bevel of the sealing groove of the inner ring, the pressure inside the bearing is not easy to escape from the sealing lip, so it is not easy to occur the phenomenon of grease leakage.

Sealed bearing performance includes: grease storage performance (anti-leakage performance), dustproof, waterproof, vaporproof performance, temperature rise performance, friction torque performance, vibration and noise performance, etc., but a variety of equipment generally require sealed bearings with good grease storage performance, dustproof performance and temperature rise performance, these three properties for the basic performance of sealed bearings, its merits and demerits directly affect the bearing life, but also the current domestic standards To test the important items of assessment.

1. Grease storage performance (anti-grease leakage performance)

2. Dustproof performance

3. Temperature rise performance