What's the difference between HRB's deep groove ball suffix 2Z and 2RZ?
Pro, it is said that 2Z is double sided iron cover, dustproof role; 2RZ is double glue cover, dustproof and waterproof function, according to their own needs to choose oh. This is my first two days ago from Kazakhstan axis Shandong spot center when buying the bearings learned, and I hope to help you!
2Z for double sided iron cap seal! 2RZ is a non contact type sealing rubber!
2Z is double sided iron seal, and ZRZ is one rubber seal with one iron seal
