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Discussion History

Hydraulic Transmission

Assembly

Torque-converter transmission giving smooth, stepless tractive effort from a standstill, with a reversing gearbox feeding the jackshaft output. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Hydraulic Transmission parts and their functions

6 top-level parts · 25 parts in total · full bill of materials below
Hydraulic Transmission parts diagram: 1 torque converter, 2 reversing gearbox, 3 transmission charge pump, 4 transmission oil cooler, 5 transmission output shaft, 6 oil seal. 25 parts in 6 top-level items.
Hydraulic 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 Torque Converter 4 parts 1× Hydrodynamic converter multiplying engine torque and acting as a fluid coupling.
2 Reversing Gearbox 4 parts 1× Dog-clutch gearbox selecting forward or reverse output.
3 Transmission Charge Pump 3 parts 1× Pump supplying converter fill and control pressure.
4 Transmission Oil Cooler 1× Heat exchanger keeping converter oil below 120 C.
5 Transmission Output Shaft 1× Shaft delivering torque to the jackshaft pinion.
6 Oil Seal 4× 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 Hydraulic Transmission

6 top-level lines · 17 rows shown · 25 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Torque Converter 4 parts diesel-shunter-torque-converter 1× 1 7 assembly
1.1 Converter Impeller diesel-shunter-impeller 1× 1 · part
1.2 Converter Turbine diesel-shunter-turbine 1× 1 · part
1.3 Converter Stator diesel-shunter-stator-wheel 1× 1 · part
1.4 Ball Bearing ball-bearing 4× 4 · part
2 Reversing Gearbox 4 parts diesel-shunter-reversing-gearbox 1× 1 8 assembly
2.1 Helical Gear Pair gear-pair 2× 2 · part
2.2 Gearbox Housing gearbox-housing 1× 1 · part
2.3 Ball Bearing ball-bearing 4× 4 · part
2.4 Shift Actuator diesel-shunter-shift-actuator 1× 1 · part
3 Transmission Charge Pump 3 parts diesel-shunter-transmission-pump 1× 1 4 assembly
3.1 Ball Bearing ball-bearing 2× 2 · part
3.2 Oil Seal oil-seal 1× 1 · part
3.3 Pump Rotor Set diesel-shunter-pump-rotor 1× 1 · part
4 Transmission Oil Cooler diesel-shunter-trans-oil-cooler 1× 1 · part
5 Transmission Output Shaft diesel-shunter-output-shaft 1× 1 · part
6 Oil Seal oil-seal 4× 4 · part

Where the hydraulic transmission 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 $1–$300. How estimates work
VendorHQSpecialtyMOQLead time
🇮🇳Sona Comstar
sonacomstar.com ↗
Gurugram, IN EV driveline & motors 1,000 pcs 8–12 wks
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
advancegroup.cn ↗ Hangzhou, CN Gearboxes 1,000 pcs 8–12 wks