... operation, and is durable, without regular maintenance. This kind of bearing friction, high limiting speed, simple structure, low cost, ... application: apply to the precise instrument the electrical appliance of low noise main dimension(mm) rated load(N)Bearing modelweightdDBr ... insert ball bearings and tapered roller bearings.We have various brands of bearings: NSK, FAG,SKF, NTN,TIMKEN,NACHI,IKO, INA ...