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Reduction Gear parts and their functions

4 top-level parts · 9 parts in total · full bill of materials below

#	Part	Qty	What it does
1	Helical Gear Pair	2×	Two meshing helical gears forming one reduction stage that steps torque up and speed down between parallel shafts with quiet, continuous tooth contact.
2	Gearbox Housing	1×	Rigid cast housing that holds the gears and bearings in alignment, contains the lubricant, and mounts the gearbox to the machine.
3	Ball Bearing	4×	Deep-groove radial ball bearing.
4	Oil Seal	2×	Spring-loaded rotary lip seal that keeps lubricant inside a housing and dirt out where a shaft passes through, sized to DIN 3760.

3D model

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Build & assembly graph

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Bill of materials for Reduction Gear

4 top-level lines · 4 rows shown · 9 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Helical Gear Pair	gear-pair	2×	2	·	part
2	Gearbox Housing	gearbox-housing	1×	1	·	part
3	Ball Bearing	ball-bearing	4×	4	·	part
4	Oil Seal	oil-seal	2×	2	·	part

Where the reduction gear is used

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

• Marine 1 Factory Ship

Used in 1 assembly

Diesel-Electric Propulsion

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 $1–$300. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇮🇳Sona Comstar sonacomstar.com ↗	Gurugram, IN	EV driveline & motors	1,000 pcs	8–12 wks
🇨🇳Zhejiang Shuanghuan shdrive.cn ↗	Yuhuan, CN	Gears & driveline	1,000 pcs	8–12 wks
🇮🇳Bharat Gears bharatgears.com ↗	Mumbai, IN	Automotive gears	1,000 pcs	8–12 wks
🇮🇳ZF India zf.com ↗	Pune, IN	Driveline & chassis	1,000 pcs	8–12 wks
🇨🇳Hangzhou Advance advancegroup.cn ↗	Hangzhou, CN	Gearboxes	1,000 pcs	8–12 wks