Drive Unit
AssemblyCassette-mounted freehub coupled through a belt and pulleys to a heavy flywheel that delivers road-like inertia. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Drive Unit parts and their functions
8 top-level parts · 11 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Cassette Body | 1× | Splined cassette body |
| 2 | Sprocket Cassette | 1× | Sprocket cassette |
| 3 | Freehub | 1× | Ratcheting freehub |
| 4 | Ball Bearing | 4× | Drive shaft + flywheel bearings |
| 5 | Drive Belt | 1× | Freehub-to-flywheel belt |
| 6 | Drive Pulley | 1× | Freehub-side pulley |
| 7 | Flywheel Pulley | 1× | Flywheel pulley |
| 8 | Inertia Flywheel | 1× | Heavy inertia flywheel |
3D model
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Build & assembly graph
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Bill of materials for Drive Unit
8 top-level lines · 8 rows shown · 11 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Cassette Body | sbt-cassette-body | 1× | 1 | · | part |
| 2 | Sprocket Cassette | sbt-cassette | 1× | 1 | · | part |
| 3 | Freehub | sbt-freehub | 1× | 1 | · | part |
| 4 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 5 | Drive Belt | drive-belt | 1× | 1 | · | part |
| 6 | Drive Pulley | sbt-drive-pulley | 1× | 1 | · | part |
| 7 | Flywheel Pulley | sbt-flywheel-pulley | 1× | 1 | · | part |
| 8 | Inertia Flywheel | sbt-flywheel | 1× | 1 | · | part |
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Where the drive unit is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳Foxconn
foxconn.com ↗
|
Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| flex.com ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| dixoninfo.com ↗ | Noida, IN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| bydelectronic.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |