Specifications:Yuyao tianma bearings co. Ltd is one of leading ball&roller bearings manufacturers experterain in china. Products cover car bearings, non-standard series bearings, textile machinery bearings, non-standard plane bearings, insert bearings, plastic bearings, f series and snap ring bearings, full-ball bearings series, wrapped bearings, unidirectional bearings, clutch bearings and hub bearings, dilated bearings and double row ball bearings, self-aligning ball bearings, tapered roller bearings, single-direction thrust ball bearings, spark plugs etc.