Rotary Drive Head
AssemblyHydraulic-motor head spinning the kelly bar. 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 Head
5 top-level lines as of r145398| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Head Drive Motor 4 parts | rotary-drilling-rig-head-motor | 2× | 2 | 0 | assembly |
| 2 | Gearbox Housing | gearbox-housing | 1× | 1 | · | part |
| 3 | Helical Gear Pair | gear-pair | 2× | 2 | · | part |
| 4 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 5 | Oil Seal | oil-seal | 2× | 2 | · | part |