Drum Assembly
AssemblySpring-wound reel holds 50 feet of webbing, spring force maintains constant tension during descent. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Drum Assembly parts and their functions
5 top-level parts · 8 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Spring Cartridge | 1× | Torsion spring mechanism |
| 2 | Drum Shaft | 1× | Steel axle with ball bearings |
| 3 | Drum Spool | 1× | Composite spool with webbing anchor slots |
| 4 | Ball Bearing | 4× | Sealed ball bearings for low-friction rotation |
| 5 | Guide Pin | 1× | Directs webbing onto spool evenly |
3D model
No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).
Build & assembly graph
expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly
shared across products
atomic part
related product
Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.
Bill of materials for Drum Assembly
5 top-level lines · 5 rows shown · 8 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Spring Cartridge | self-retracting-lifeline-spring-cartridge | 1× | 1 | · | part |
| 2 | Drum Shaft | self-retracting-lifeline-drum-shaft | 1× | 1 | · | part |
| 3 | Drum Spool | self-retracting-lifeline-drum-spool | 1× | 1 | · | part |
| 4 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 5 | Guide Pin | self-retracting-lifeline-guide-pin | 1× | 1 | · | part |
Something wrong in this list? Report a problem with this BOM.
Where the drum assembly 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 |