... bearings for carbon steel, bearing steel , stainless steel,non-standard bearing and injection molding roller and dysmorphism parts . Our ... excellent reliability. 1.product Specification :Model No. R695 Bearing rollerRoller Material: nylon imported from JapanBearing Material: carbon steelSize ... POM,nylon,glass fiber,etc3.OEM and non-standard bearing&roller orders are available .4. sealing from:2RS ZZ ...