imperial needle roller bearings with seals 1,ABEC-3,5;Z2V2,Z3V3 2,High speed 3,End cover:ZZ,RS 4,Noise level:Z1 ... ,Z2 Lily bearing is a specialized manufacturer of imperial needle roller bearings with seals ... in the production of needler roller bearing.Combined needle roller bearings consists of a radial needle roller bearing combined with a thrust cearing and ...