| Item | Part No. | Part Name | Qty | Serial No. |
| 428-20-15001 | SUPPORT ASS'Y | 50001- | ||
| 1 | 428-20-15211 | SHAFT | 50001- | |
| 2 | 428-20-15411 | RETAINER | 50001- | |
| 3 | 428-20-15730 | SEAL,OIL | 50001- | |
| 4 | 07000-15160 | O-RING | 50001- | |
| 5 | 01010-61040 | BOLT | 50001- | |
| 6 | 01643-31032 | WASHER | 50001- | |
| 7 | 428-20-15710 | BEARING | 50001- | |
| 8 | 428-20-15740 | SEAL,OIL | 50001- | |
| 9 | 428-20-15231 | COUPLING | 50001- | |
| 10 | 07000-15080 | O-RING | 50001- | |
| 11 | 428-20-15290 | HOLDER | 50001- | |
| 12 | 01011-63035 | BOLT | 50001- | |
| 13 | 428-20-15540 | SHIM, 0.05MM | 50001- | |
| 13 | 428-20-15550 | SHIM, 0.1MM | 50001- | |
| 13 | 428-20-15560 | SHIM, 0.3MM | 50001- | |
| 14 | 428-20-15112 | HOUSING | 50001- | |
| 15 | 07030-01030 | BREATHER | 50001- | |
| 16 | 01010-62485 | BOLT | 50001- | |
| 17 | 01643-32460 | WASHER | 50001- | |
| 18 | 01580-02419 | NUT | 50001- | |
| 19 | 427-20-15510 | SHIM, 0.1MM | 50001- | |
| 19 | 427-20-15520 | SHIM, 0.2MM | 50001- | |
| 19 | 427-20-15530 | SHIM, 0.5MM | 50001- |