... 3.Brand:NBR 4.Exported:India,Singpore,Canada,Pk pulley bearing pulley bearing stainless steel Bearing Type:Deep groove ball ... pictures show: pulley bearingSpecification: Greese/OilAs you requirement, such as SRL ,PS2, Alvania R12 and so on Series deep groove ball ... bearing series Ring MaterialChrome Steel ,Carbon steel,Stainless steel ...