Miniature Thrust Ball Bearing F4-8M

    F4-8M is a non-standard miniature thrust ball bearings in Runspeed,it is designed for applications which needs axial or side loads only. It consists of two washers(one is shaft washer,another is housing washer)  with groove(raceway) and a container with balls. F4-8M is with a bore size 4mm, a outer size 8mm and a width 3.3 mm. It is belong to FM series of miniature thrust ball bearings with a raceway in washers. The material is chrome steel for two washers, and stainless steel or brass for cages. It is a pop size for application as knife,scissor,  crane hook, vertical water pump, vertical centrifuge, Jack, low-speed reducer and platform lift etcs those need  medium speed and axial load.