DQ450 Top drive system Parts list
| DQ450 TDS Parts | ||||
| 1 | Umbrella rubber cover | DQ004.12.02 | EA | 3 |
| 2 | Friction bush (1) | DQ004.12.03 | EA | 3 |
| 3 | Spacer ring | DQ004.12.04 | EA | 3 |
| 4 | Stuffing box | DQ004.12.05 | EA | 3 |
| 5 | Sealing collar (1) | DQ004.12.07 | EA | 3 |
| 6 | Lip seal (1) | DQ004.12.08 | EA | 3 |
| 7 | Belt wheel for measuring speed | DQ004.12.09 | EA | 3 |
| 8 | Brake disk | DQ004.12.10 | EA | 3 |
| 9 | Sealing ring | DQ004.12.11 | EA | 3 |
| 10 | Bearing oil seal | DQ004.12.12 | EA | 3 |
| 11 | Adjusting washer (1) | DQ004.12.13 | EA | 3 |
| 12 | Sealing collar (2) | DQ004.12.15 | EA | 3 |
| 13 | Lip seal (2) | DQ004.12.16 | EA | 3 |
| 14 | Friction sleeve (2) | DQ004.12.17 | EA | 3 |
| 15 | Sealing collar (3) | DQ004.12.18 | EA | 3 |
| 16 | Sealing collar (4) | DQ004.12.22 | EA | 3 |
| 17 | Adjusting washer (2) | DQ004.12.23 | EA | 3 |
| 18 | Regulating ring | DQ004.12.24 | EA | 2 |
| 19 | Sealing collar (5) | DQ004.12.25 | EA | 3 |
| 20 | Lip seal (3) | DQ004.12.26 | EA | 3 |
| 21 | Double Lug Oil Seal | R01-FG | EA | 3 |
| 22 | Bearing (tapered) | 29,444 | EA | 3 |
| 23 | Center bearing NA 4860 (roller) | GB/T5801-1994 | EA | 3 |
| 24 | Rotary seal type OR | OR 3200 033 00161F | EA | 33 |
| 25 | Upper bearing (ball) | 61,964 | EA | 3 |
| 26 | Double Lug Oil Seal | R01-FG | EA | 3 |
| 27 | Double Lug Oil Seal | R01-FG | EA | 3 |
| 28 | Teflon stuffing box | GY7540-18 | EA | 3 |
| 29 | Bearing | T1120 | EA | 3 |
| 30 | Bearing (tapered) | 32044/YB2 | EA | 3 |
| 31 | Double Seal Oil Seal | R01-FG | EA | 3 |
| 32 | Teflon stuffing box | GY7540-12 | EA | 3 |
| 33 | Bearing (roller) | NU1038M/C4 | EA | 3 |
| 34 | Double Lug Oil Seal | GTC002100 | EA | 6 |
| 35 | O-ring seal | GB/T3452.1-92 | EA | 3 |
| 36 | End clamping plate of the motor | DQ004.12.30 | EA | 3 |
| Dual battery block | ||||
| 37 | Piston accumulator | HXQ-L10/20-H | EA | 6 |
| Hydraulic station assembly | ||||
| 38 | Oil suction filter | TF100×100L | EA | 20 |
| 39 | Air cooling device | JCFL-4.22/1.45 | EA | 3 |
| 40 | Filter | SP-10×25 | EA | 40 |
| 41 | Hose assembly | 87311-12-10/20491-26-10×2S-10×700 | EA | 20 |
| Flush pipe assembly | ||||
| 42 | Drilling mud stuffing box | SL001.05.04 | EA | 100 |
| 43 | Drilling mud pipe | DQ004.04.02 | EA | 40 |
| Holding key | ||||
| 44 | FR Piston Guide Ring | FR J060 Q5029 | EA | 10 |
| 45 | Piston seal type OK | OK 0200 00701 | EA | 10 |
| 46 | Piston seal type OK | OK 0190 00701 | EA | 10 |
| 47 | Holding key body | DQ004.01.20 | EA | 2 |