... 4. Large quantity stock 2012 taper roller bearing ,timken 32972 ,single row taper roller bearingTimken tapered roller bearings series ... need not to adjust the user.Tapered roller bearings taper inner ring and outer ring have groove, tapered roller ... , metallurgical, plastic machinery, etc.2012 taper roller bearing ,timken 32972 ,single row taper roller bearingTianjin HuaJingRui international trade Co., ...