... Material: Brass,Aluminum, POM Danly, Hasco, MISUMI, JIS CODE ball retainer (Ball cages, ball bearing cages)Material: Brass, ... Hasco, MISUMI, PUNCH, DINWithout MOQBall Retainer Bearing with the rolling ball principle, with a copper base, aluminum or resin ... , radial able to exercise the characteristics depend on the rolling friction, achieve seamless assembly, guaranteed accuracy. The product is ...