1.Manufacturer of Self-aligning ball bearing 2.Strong load capability ... 2008 5.Delivery in time Manufacture of most professional self-aligning ball bearing also supply taper roller bearing,spherical ... ZZ, RS, 2RS, 2ZR, 2Z. 5) Vibration and Noisy level: Z1, Z2, Z3, ZV1, ZV2.ZV3.Z1V1.Z2V2.Z3V3. ... friendly relations of cooperation Own factroy produce Self-aligning ball bearing for low nosie motor