First of all, thin-walled bearings with dust cover and sealing ring have different properties, one is dust-proof and the other is sealing. Dust prevention is to prevent dust from entering the motor; Not only the external dust cannot enter the seal, but also the internal grease is not easy to flow out, and the external unclean grease is not easy to flow in. Germany tedley, Germany tedley bearing, tdlb bearing

  secondly, there are some differences between the two in use. Luo bearing with dust cover is mainly used in "dry and dusty" environment. According to specific conditions, it can be selected with dust cover on one or both sides.

  in practical application, the difference between the two is not too great. Thin wall bearings generally have internal and external oil covers, which have played this role and are only required under specific conditions. When leaving the factory, the bearing manufacturer with dust cover (including seal) has added grease inside.