... we could provide all kinds of ball bearing,welcome to inquiry DEEP GROOVE BALL BEARINGSDeep Groove Ball Bearing is the most commonly used ... , water pump, agricultural machinery and fabrics machine, etc.Characteristic of deep groove ball bearing:1. Seal form: open style, Z, ZZ, ... non-touch grommet.RZ represents that one-side of the deep groove ball bearing is contact grommet, and 2RS represents that ...