Main Transmission / Gearbox
AssemblyReduces engine speed and drives the main rotor, tail driveshaft and accessories. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Main Transmission / Gearbox
11 top-level lines as of r193162| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Planetary Reduction Stage 4 parts | helicopter-planetary-stage | 1× | 1 | 0 | assembly |
| 2 | Helical Gear Pair | gear-pair | 1× | 1 | · | part |
| 3 | Freewheeling Unit 2 parts | helicopter-freewheel-unit | 1× | 1 | 0 | assembly |
| 4 | Gearbox Housing | helicopter-gearbox-housing | 1× | 1 | · | part |
| 5 | Gearbox Lubrication System 4 parts | helicopter-lube-system | 1× | 1 | 0 | assembly |
| 6 | Ball Bearing | ball-bearing | 6× | 6 | · | part |
| 7 | Oil Seal | oil-seal | 3× | 3 | · | part |
| 8 | Transmission Mount | helicopter-transmission-mount | 4× | 4 | · | part |
| 9 | Chip Detector | helicopter-chip-detector | 3× | 3 | · | part |
| 10 | Torque & Speed Sensor | helicopter-torque-sensor | 2× | 2 | · | part |
| 11 | Hex Bolt | helicopter-hex-bolt | 48× | 48 | · | part |