Bearing Bore (ID) : 2.1875''
Bearing OD : 3.9370''
Bearing Width : 1.8110
Disc Fitment 1: JD: 315, 335, 355, 375, 635; 637 with C spring bearing hangers; 640, 650, 670 discs
Disc Fitment 2: 310, 330, 331, 340, 350, 360 and 370 discs updated to Dura-Flex bearings and flanges.510 and 512 Disc Ripper
Disc Fitment 3: Fits Great Plains and Kent Turbo-Till 1000TT, 1200TT, 1700TT, 2200TT, 3000TT, and 4000TT