... our own brand:SHR3. Thrust ball bearing product series: Single row thrust ball bearings series:Flat seat series: 511xx, 512xx, 513xx ... : 532xx, 533xx, 534xx. Spherical seat series: 532xxU, 533xxU, 534xxU. Double row thrust ball bearings of series:Flat seat series: 522xx, 523xx ... industry for 12 years and made international trade of bearing import and export for more than 5 years.We attend international ...