BOMwiki the bill-of-materials encyclopedia
30,454,201 parts mapped · 193,225 items
Discussion History

Yaw Drive Unit

Assembly

One geared actuator: an electric motor turns a multi-stage planetary gearbox whose output pinion meshes the yaw ring, with a holding brake so the motor can rest while the ring is loaded. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Yaw Drive Unit parts and their functions

6 top-level parts · 41 parts in total · full bill of materials below
Yaw Drive Unit parts diagram: 1 yaw motor, 2 planetary gearbox, 3 output pinion, 4 holding brake, 5 ball bearing, 6 oil seal. 41 parts in 6 top-level items.
Yaw Drive Unit parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Yaw Motor 4 parts 1× Yaw drive motor
2 Planetary Gearbox 5 parts 1× High-ratio reduction gearbox
3 Output Pinion 1× Ring-meshing pinion
4 Holding Brake 1× Motor holding brake
5 Ball Bearing 2× Output shaft bearings
6 Oil Seal 2× Gearbox seals

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Yaw Drive Unit

6 top-level lines · 22 rows shown · 41 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Yaw Motor 4 parts wyd-yaw-motor 1× 1 25 assembly
1.1 Stator Assembly 3 parts stator-assembly 1× 1 3 assembly
1.1.1 Stator Core (laminations) stator-core 1× 1 · part
1.1.2 Copper Winding copper-winding 1× 1 · part
1.1.3 Slot Insulation stator-insulation 1× 1 · part
1.2 Rotor Assembly 4 parts rotor-assembly 1× 1 19 assembly
1.2.1 Rotor Shaft rotor-shaft 1× 1 · part
1.2.2 Rotor Core rotor-core 1× 1 · part
1.2.3 Neodymium Magnet neodymium-magnet 16× 16 · part
1.2.4 Ball Bearing ball-bearing 1× 1 · part
1.3 Motor Housing motor-housing 1× 1 · part
1.4 Ball Bearing ball-bearing 2× 2 · part
2 Planetary Gearbox 5 parts wyd-planetary-gearbox 1× 1 10 assembly
2.1 Planet Set wyd-planet-set 3× 3 · part
2.2 Sun Pinion wyd-sun-pinion 1× 1 · part
2.3 Internal Ring Gear wyd-ring-internal 1× 1 · part
2.4 Gearbox Housing gearbox-housing 1× 1 · part
2.5 Ball Bearing ball-bearing 4× 4 · part
3 Output Pinion wyd-output-pinion 1× 1 · part
4 Holding Brake wyd-holding-brake 1× 1 · part
5 Ball Bearing ball-bearing 2× 2 · part
6 Oil Seal oil-seal 2× 2 · part

Something wrong in this list? Report a problem with this BOM.

Where the yaw drive unit is used

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

Used in 1 assembly

Wind Turbine Yaw Drive

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
VendorHQSpecialtyMOQLead 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