Rotary Drive Head
AssemblyHydraulic motor that continuously rotates the kelly bar and auger string at 20–100 RPM with high torque. 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
3 top-level lines as of r7771| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Hydraulic Motor | auger-drill-rig-rotary-motor | 1× | 1 | · | part |
| 2 | Reduction Gearbox | auger-drill-rig-rotary-gearbox | 1× | 1 | · | part |
| 3 | Drive Bearing | auger-drill-rig-rotary-bearing | 1× | 1 | · | part |