... bearing with the best prices and good quality. Needle Roller Bearing Materials: GCr15 Vibration Level: V1, V2, V3 ... manufactuer .1. Model: LZ series, HK SERIES, BK SERIES, HK-RS SERIES, BK-RS SERIES, FFH SERIES, MFH SERIES, FY SERIES, MFY SERIES, HF SERIES, HFL SERIES etc 2 ... Vibration Level: V1, V2, V3; 7. Packing: Bulk single color box/ tube/carton/pallet or customized. 8. Certification: ISO ...