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Discussion History

Transmission

Assembly

Automated manual or torque-converter automatic of six to twelve speeds, matching engine torque to road speed up to about 100–125 km/h. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Transmission parts and their functions

6 top-level parts · 20 parts in total · full bill of materials below
Transmission parts diagram: 1 gearbox housing, 2 helical gear pair, 3 torque converter, 4 shift controller, 5 ball bearing, 6 oil seal. 20 parts in 6 top-level items.
Transmission parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Gearbox Housing 1× Rigid cast housing that holds the gears and bearings in alignment, contains the lubricant, and mounts the gearbox to the machine.
2 Helical Gear Pair 6× Two meshing helical gears forming one reduction stage that steps torque up and speed down between parallel shafts with quiet, continuous tooth contact.
3 Torque Converter 1× Lock-up converter
4 Shift Controller 3 parts 1× Gear-shift control unit
5 Ball Bearing 6× Deep-groove radial ball bearing.
6 Oil Seal 3× 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 Transmission

6 top-level lines · 9 rows shown · 20 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Gearbox Housing gearbox-housing 1× 1 · part
2 Helical Gear Pair gear-pair 6× 6 · part
3 Torque Converter coach-bus-torque-converter 1× 1 · part
4 Shift Controller 3 parts coach-bus-shift-controller 1× 1 3 assembly
4.1 Bare PCB pcb-bare 1× 1 · part
4.2 Microcontroller mcu 1× 1 · part
4.3 SMD Passive (R/C/L) smd-passives 1× 1 · part
5 Ball Bearing ball-bearing 6× 6 · part
6 Oil Seal oil-seal 3× 3 · part

Where the transmission is used

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

Used in 1 assembly

Powertrain

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 $1–$300. How estimates work
VendorHQSpecialtyMOQLead 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