Crown Block
AssemblyFixed sheave frame at the mast top through which the drilling line passes to redirect load from drawworks to hook. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Crown Block
2 top-level lines as of r145870| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Ball Bearing | ball-bearing | 8× | 8 | · | part |
| 2 | Sheet Metal Panel | sheet-panel | 2× | 2 | · | part |