Dear Sir/Madam, Bearing Material:Chrome Steel, Carbon Steel, Stainless Steel, Plastic, Ceramic Bearing Cage:Chrome Cage, Carbon Cage, Brass Cage Bearing Roller:Chrome Steel, Carbon Steel Bearing Package:Bag, Roll, Box, Carton, Pallet Bearing Vibration:Z1V1, Z2V2, Z3V3 Bearing Precision:ABEC-1, ABEC-3, ABEC-5, ABEC-7, ABEC-9 Bearing Samples:Free Bearing Service:OEM & ODM Bearing Delivery:5 - 7 Days Bearing Stock:Rich Show More