... (it can option) 1.Bearing material:carbon,chrome,iron,ect 2.Type: 2RS ZZ ,Z ,RS,OPEN 3.Size: 8*22*7mm ... , automobiles, motorcycles, and other common machinery, as a widely used type of bearings in machinery industrySpecifications:1. High accuracy, High speed ... .41.450.0336255165 1.130.560.0056266196 2.011.050.0086277227 2.531.360.0146288248 2.571.360.0166966155 1.130.560.0039600010268 ...