Main Drive Unit
AssemblyOne of the motor and gearbox units arranged around the rear of the cutterhead support. Each pairs a main drive motor with a planetary reducer and an output pinion, with a torque-limiting coupling between them. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Main Drive Unit
4 top-level lines as of r193945| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Main Drive Motor | main-beam-tbm-drive-motor | 1× | 1 | · | part |
| 2 | Torque-Limiting Coupling | main-beam-tbm-torque-limiter | 1× | 1 | · | part |
| 3 | Planetary Gear Reducer | main-beam-tbm-gear-reducer | 1× | 1 | · | part |
| 4 | Drive Pinion | main-beam-tbm-drive-pinion | 1× | 1 | · | part |