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Undercarriage parts and their functions

7 top-level parts · 258 parts in total · full bill of materials below

#	Part	Qty	What it does
1	Track Chain 4 parts	1×	Sealed and lubricated track chain
2	Track Shoe (Grouser)	41×	Grouser shoes bolted to the chain
3	Track Roller	7×	Lower rollers carrying machine weight
4	Carrier Roller	2×	Upper rollers supporting the chain
5	Front Idler	1×	Front guide wheel
6	Track Adjuster	1×	Grease-filled tension cylinder
7	Track Frame	1×	Welded roller frame

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour

product / assembly shared across products atomic part related product

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Bill of materials for Undercarriage

7 top-level lines · 11 rows shown · 258 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Track Chain 4 parts	crawler-dozer-track-chain	1×	1	205	assembly
1.1	Track Link	crawler-dozer-track-link	82×	82	·	part
1.2	Track Pin	crawler-dozer-track-pin	41×	41	·	part
1.3	Track Bushing	crawler-dozer-track-bushing	41×	41	·	part
1.4	Oil Seal	oil-seal	41×	41	·	part
2	Track Shoe (Grouser)	crawler-dozer-track-shoe	41×	41	·	part
3	Track Roller	crawler-dozer-track-roller	7×	7	·	part
4	Carrier Roller	crawler-dozer-carrier-roller	2×	2	·	part
5	Front Idler	crawler-dozer-front-idler	1×	1	·	part
6	Track Adjuster	crawler-dozer-track-adjuster	1×	1	·	part
7	Track Frame	crawler-dozer-track-frame	1×	1	·	part

Where the undercarriage is used

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

• Construction & Earthmoving 1 Crawler Dozer

Used in 1 assembly

Crawler Dozer

Sourcing: possible vendors

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 $300–$90k. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳BYD byd.com ↗	Shenzhen, CN	EV & battery manufacturer	made to order	·
🇮🇳Tata Motors tatamotors.com ↗	Mumbai, IN	Automaker	made to order	·
🇨🇳SAIC Motor saicmotor.com ↗	Shanghai, CN	Automaker	made to order	·
🇮🇳Mahindra mahindra.com ↗	Mumbai, IN	Automaker	made to order	·
🇨🇳Geely global.geely.com ↗	Hangzhou, CN	Automaker	made to order	·