Rotary Drive
AssemblyThe top-drive head that turns the drill string and passes drilling fluid into it. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Rotary Drive
7 top-level lines as of r187651| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Top-Drive Gearbox | water-well-drilling-rig-top-drive | 1× | 1 | · | part |
| 2 | Drive Motor | water-well-drilling-rig-drive-motor | 1× | 1 | · | part |
| 3 | Helical Gear Pair | gear-pair | 2× | 2 | · | part |
| 4 | Gearbox Housing | gearbox-housing | 1× | 1 | · | part |
| 5 | Water Swivel | water-well-drilling-rig-water-swivel | 1× | 1 | · | part |
| 6 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 7 | Oil Seal | oil-seal | 2× | 2 | · | part |