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Top drive system bearing | Manufacturer | Model No. | Position | Ref. P/N | RBC P/N | Timken® | FAG® | American | Rollway® | | NOV® |
| Main Bearing | 91243 | TRTB1120 | T1120 | 546633 | T11120 | T-1120 | | Tesco |
| Main Bearing | 13544 | | Canrig |
| Main Bearing |
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| N-2672-B |
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| Main Bearing |
| TRTB1011 | HM265049-90068 | 547591 | T11011 | T-1011 |
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| | NOV® | TDS-11A | Main Bearing | 30120556 | TRTB921 | T921 | 513052A | T1921 | T-921 |
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| | NOV® | TDS-9S | Main Bearing | 108319 | TRTB911 | T911 | 512133A | T1911 | T-911 | | Tesco | Main Bearing | 840040 |
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| Main Bearing |
| TRTB911A | T911A | 546631 | T1911A | T-911A |
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| | NOV® | TDS-10S | Main Bearing | 119708 | TRTB811 | T811 | 514560 | T1811 | T-811 |
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| | Tesco |
| Main Bearing | 7452 | TRTB711 | T711 | 547667 | T1711 | T-711 |
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| Main Bearing |
| TRTB691 | T691 | 535741A | T1691 | T-691 |
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| Main Bearing |
| TRTB661 | T661 | 546632 | T1661 | T-661 |
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| | NOV® | S-120 & TD-120 | Main Bearing | 27279/005 | TRTB511 | T511 | 547420 | T1511 | T-511 |
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| | NOV® | S-85 | Main Bearing | 20489/005 | TRTB441 | T441 | 548086 | T1441 | T-441 |
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| | NOV® |
| Main Bearing | 221480/005 | TRTB76561VF | N-3559-A |
| VFT9747 |
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