... (Metric & Imperial) 680, 690, 6800, 6900, Carbon Chrome and Stainless steel Double Row Ball Bearings 1200(K), 1300(K), 4200, 5200, 5300 ... and Metric Single Row Specials (Flanged Cups.Special Bores etc.) Double Row Assemblies Spherical Roller Bearings - Straight Bore and 1:12 ... Single Row Ball Bearings 51100, 51200, 51300, O series (LT) Double Row Ball Bearings 52200, 52300, 53200, 53300 Single and Multi ...