... : Shield / closure: open ball bearing, Z, ZZ, RS, 2RS,2RZBall bearings snap ring: N, NRTolerance codes: ABEC- ... Ball bearings with one or two side rubber seal RS, 2RS.With one or two side metal shields Z ... C2.Applications : Typical applications: electric motors, automotive applications, home appliances, industrial equipment. Automotive,electric motors, constraction machinery , Motorcycle , Motor , ...