Mast Cap & Spider
AssemblyTop fitting where the stiffleg heads and the luffing bridle attach to the mast. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Mast Cap & Spider parts and their functions
4 top-level parts · 8 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Spider Casting | 1× | Cast hub at the mast top gathering the stiffleg and bridle pins. |
| 2 | Bridle Sheave | 2× | Topping rope sheaves |
| 3 | Ball Bearing | 4× | Deep-groove radial ball bearing. |
| 4 | Connection Pin Set | 1× | Hardened clevis pins and retainers for lattice and bridle joints. |
3D model
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Build & assembly graph
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Bill of materials for Mast Cap & Spider
4 top-level lines · 4 rows shown · 8 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Spider Casting | derrick-crane-spider-casting | 1× | 1 | · | part |
| 2 | Bridle Sheave | derrick-crane-bridle-sheave | 2× | 2 | · | part |
| 3 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 4 | Connection Pin Set | derrick-crane-pin-set | 1× | 1 | · | part |
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Where the mast cap & spider 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–$200. How estimates work| 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 |