precision ball bearing manufacturer: 1,ABEC-3,5;Z2V2,Z3V3 2,High speed ... ,RS 4,Noise level:Z1,Z2 double row cylindrical roller bearing 1,ABEC-3,5;Z2V2,Z3V3 2,High speed 3 ... ,RS 4,Noise level:Z1,Z2 double row cylindrical roller bearing is in line contact with the raceway, so the ... bearing can bear heavier radial load. Applications are found in situations ...