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Steel Underframe

Assembly

Welded and riveted center sill, side sills, and body bolsters that transfer body weight to the truck center plates. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Steel Underframe parts and their functions

4 top-level parts · 7 parts in total · full bill of materials below
Steel Underframe parts diagram: 1 center sill, 2 body bolster, 3 center plate, 4 fastener set. 7 parts in 4 top-level items.
Steel Underframe parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Center Sill 2× Fishbelly center sills
2 Body Bolster 2× Carries load to truck pivot
3 Center Plate 2× Pivot bearing to truck
4 Fastener Set 1× Bolts, nuts, and washers.

3D model

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Build & assembly graph

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Bill of materials for Steel Underframe

4 top-level lines · 4 rows shown · 7 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Center Sill heritage-streetcar-center-sill 2× 2 · part
2 Body Bolster heritage-streetcar-body-bolster 2× 2 · part
3 Center Plate heritage-streetcar-center-plate 2× 2 · part
4 Fastener Set fastener-set 1× 1 · part

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Where the steel underframe is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used 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
VendorHQSpecialtyMOQLead time
🇮🇳Bharat Forge
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