Underframe
AssemblyWelded steel frame with a deep center sill that carries draft and buff loads and supports the hopper bins between the bogies. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Underframe
8 top-level lines as of r83631| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Center Sill | hopper-car-center-sill | 1× | 1 | · | part |
| 2 | Side Sill | hopper-car-side-sill | 2× | 2 | · | part |
| 3 | Body Bolster | hopper-car-body-bolster | 2× | 2 | · | part |
| 4 | Cross Tie | hopper-car-cross-tie | 4× | 4 | · | part |
| 5 | Striker Casting | hopper-car-striker-casting | 2× | 2 | · | part |
| 6 | Center Plate | hopper-car-center-plate | 2× | 2 | · | part |
| 7 | Side Bearing | hopper-car-side-bearing | 4× | 4 | · | part |
| 8 | Fastener Set | fastener-set | 4× | 4 | · | part |