Swing Drive Unit Assembly
One of several drive units spaced around the roller circle; each runs a mill motor through a gearbox to a pinion that walks the whole upperworks around the swing rack. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
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Bill of materials
4 top-level lines · 21 rows shown · 38 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | DC Mill Motor 6 parts | dragline-mill-motor | 1× | 1 | 28 | assembly |
| 1.1 | Stator Assembly 3 parts | stator-assembly | 1× | 1 | 3 | assembly |
| 1.1.1 | Stator Core (laminations) | stator-core | 1× | 1 | — | part |
| 1.1.2 | Copper Winding | copper-winding | 1× | 1 | — | part |
| 1.1.3 | Slot Insulation | stator-insulation | 1× | 1 | — | part |
| 1.2 | Rotor Assembly 4 parts | rotor-assembly | 1× | 1 | 19 | assembly |
| 1.2.1 | Rotor Shaft | rotor-shaft | 1× | 1 | — | part |
| 1.2.2 | Rotor Core | rotor-core | 1× | 1 | — | part |
| 1.2.3 | Neodymium Magnet | neodymium-magnet | 16× | 16 | — | part |
| 1.2.4 | Ball Bearing | ball-bearing | 1× | 1 | — | part |
| 1.3 | Copper Winding | copper-winding | 2× | 2 | — | part |
| 1.4 | Motor Housing | motor-housing | 1× | 1 | — | part |
| 1.5 | Ball Bearing | ball-bearing | 2× | 2 | — | part |
| 1.6 | Oil Seal | oil-seal | 1× | 1 | — | part |
| 2 | Swing Gearbox 4 parts | dragline-swing-gearbox | 1× | 1 | 7 | assembly |
| 2.1 | Gearbox Housing | gearbox-housing | 1× | 1 | — | part |
| 2.2 | Helical Gear Pair | gear-pair | 2× | 2 | — | part |
| 2.3 | Ball Bearing | ball-bearing | 3× | 3 | — | part |
| 2.4 | Oil Seal | oil-seal | 1× | 1 | — | part |
| 3 | Swing Pinion | dragline-swing-pinion | 1× | 1 | — | part |
| 4 | Ball Bearing | ball-bearing | 2× | 2 | — | part |
Used in 1 assembly
Sourcing — likely vendors
Companies that make this · indicative price $0.50–$200 · MOQ & lead are typical| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| bharatforge.com ↗ | Pune, IN | Forgings & metal parts | 500 pcs | 6–10 wks |
| dicastal.com ↗ | Qinhuangdao, CN | Aluminium castings & wheels | 500 pcs | 6–10 wks |
| tataautocomp.com ↗ | Pune, IN | Auto components | 500 pcs | 6–10 wks |
| 🇸🇬Beyonics beyonics.com ↗ | Singapore | Precision metal & mfg | 500 pcs | 6–10 wks |
| sundaram-clayton.com ↗ | Chennai, IN | Die castings | 500 pcs | 6–10 wks |