... , self-aligning ball bearings, cylindrical roller bearings, spherical roller bearing , tapered roller bearing , thrust ball bearing , thrust roller bearing 3. Bearing ... or double row5. Material : Chrome steel ,stainless steel ,bearing steel6.Seal type: open, Z, ZZ, RZ, RS,2RS 7.High ... , agricultural machinery, construction machinery, construction machinery, and so on. Tapered Roller Bearing Retainer