Main Shaft Assembly

Assembly

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High-strength steel shaft supporting commutator, armature, and Bendix drive, rotating at 4000–8000 rpm during cranking.

Direct parts	4
Total parts	4
Used in	1 assembly
Class	Assembly

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High-strength steel shaft supporting commutator, armature, and Bendix drive, rotating at 4000–8000 rpm during cranking. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Main Shaft Assembly parts and their functions

4 top-level parts · 4 parts in total · full bill of materials below

Main Shaft Assembly parts diagram: 1 main drive shaft, 2 front shaft bearing, 3 rear shaft bearing, 4 ball bearing. 4 parts in 4 top-level items. — Main Shaft Assembly parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Main Drive Shaft	1×	Cold-drawn steel shaft 8–12 mm diameter with commutator boss and gear spline
2	Front Shaft Bearing	1×	Deep-groove ball bearing (6202 or 6203) supporting front load
3	Rear Shaft Bearing	1×	Ball or roller bearing supporting rear commutator and brush load
4	Ball Bearing	1×	Redundant bearing pair for load distribution under high-inertia transients

3D model

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Build & assembly graph

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Bill of materials for Main Shaft Assembly

4 top-level lines · 4 rows shown · 4 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Main Drive Shaft	engine-starter-shaft-body	1×	1	·	part
2	Front Shaft Bearing	engine-starter-shaft-bearing-front	1×	1	·	part
3	Rear Shaft Bearing	engine-starter-shaft-bearing-rear	1×	1	·	part
4	Ball Bearing	ball-bearing	1×	1	·	part

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Where the main shaft assembly is used

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

Automobiles 1 Engine Starter Motor

Used in 1 assembly

Engine Starter Motor

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–$100. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳Foxconn foxconn.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Flex (Singapore) flex.com ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks
🇮🇳Dixon Technologies dixoninfo.com ↗	Noida, IN	Electronics contract mfg	1,000 pcs	6–10 wks
🇨🇳BYD Electronics bydelectronic.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Venture Corp venture.com.sg ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks