metric series of tapered roller bearing 1. OEM service 2. High precision 3. Separated type bearing Tapered Roller Bearing ... (P6), ABEC-5(P5), ABEC-7(P4) 2)Noise level: Z1, Z2, Z3, Z43)Vibration Level: V1, V2, V3, V4 4)Clearance: ... Inspection 7. Appearance Inspection8. Rust Prevention 9. Product Packaging Application:Auto, tractor, machine tool, electric machine, water pump, agricultural machinery ...