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Planetary Gearset Stack

Assembly

Three planetary gear stages with 6–10 selectable ratios (forward speeds) plus reverse, each gear set using sun, planet, and ring elements. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Planetary Gearset Stack parts and their functions

4 top-level parts · 4 parts in total · full bill of materials below
Planetary Gearset Stack parts diagram: 1 planetary sun gears, 2 planetary planet gears, 3 planetary ring gears, 4 planetary carriers. 4 parts in 4 top-level items.
Planetary Gearset Stack parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Planetary Sun Gears 1× Central small gears providing ground points for various ratios
2 Planetary Planet Gears 1× Intermediate gears meshing both sun and ring, enabling torque distribution
3 Planetary Ring Gears 1× Large internal gears providing reaction surfaces and multiplication
4 Planetary Carriers 1× Rotating frames holding planet gear shafts, structural backbone

3D model

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Build & assembly graph

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Bill of materials for Planetary Gearset Stack

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 Planetary Sun Gears automatic-transmission-sun-gears 1× 1 · part
2 Planetary Planet Gears automatic-transmission-planet-gears 1× 1 · part
3 Planetary Ring Gears automatic-transmission-ring-gears 1× 1 · part
4 Planetary Carriers automatic-transmission-planetary-carriers 1× 1 · part

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Where the planetary gearset stack 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