... ,5;Z2V2,Z3V3 2,High speed 3,End cover:ZZ,RS 4,Noise level:Z1,Z2 double row cylindrical roller bearing 1 ... ,5;Z2V2,Z3V3 2,High speed 3,End cover:ZZ,RS 4,Noise level:Z1,Z2 double row cylindrical roller bearing is ... high-speed rotation. These bearings are separable bearings, and convenient to be mounted and dismounted. They are designed as types of single, double ...