Greasable Disc Bearing. For P30941 Bearing Kit, Use with P27172 Flange W/ Zerk, P34792 Flange W/O Zerk, and P33968 gasket,  Fits John Deere model 215, 235 and 637 disc with rigid bearing hangers. 621, 627 and 630 discs. Also fits 210, 220 and 230 discs updated to Dura-Flex® bearings and flanges. 710, 712, 714 Mulch Tillers. 722, 724, 726, 2310 Mulch Finishers. . Replaces OEM# AA28184, GW209PPB13