Yaw System parts and their functions

3 top-level parts · 7,305 parts in total · full bill of materials below

#	Part	Qty	What it does
1	Yaw Slewing Bearing	1×
2	Wind Turbine Yaw Drive 7 parts	6×	Geared drive that rotates the nacelle to face the turbine into the wind. Several motor-and-gearbox units pinion against a large slewing ring on the tower top, swinging the heavy nacelle to track wind direction while brakes hold it steady once aligned.
3	Yaw Brake Caliper	8×

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Bill of materials for Yaw System

3 top-level lines · 42 rows shown · 7,305 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Yaw Slewing Bearing	wind-turbine-yaw-bearing	1×	1	·	part
2	Wind Turbine Yaw Drive 7 parts	wind-turbine-yaw-drive	6×	6	1,216	product
2.1	Yaw Drive Unit 6 parts	wyd-yaw-drive-unit	6×	36	41	assembly
2.1.1	Yaw Motor 4 parts + deeper ›	wyd-yaw-motor	1×	36	25	assembly
2.1.2	Planetary Gearbox 5 parts + deeper ›	wyd-planetary-gearbox	1×	36	10	assembly
2.1.3	Output Pinion	wyd-output-pinion	1×	36	·	part
2.1.4	Holding Brake	wyd-holding-brake	1×	36	·	part
2.1.5	Ball Bearing	ball-bearing	2×	72	·	part
2.1.6	Oil Seal	oil-seal	2×	72	·	part
2.2	Yaw Bearing 5 parts	wyd-yaw-bearing	1×	6	205	assembly
2.2.1	Slewing Ring	wyd-slewing-ring	1×	6	·	part
2.2.2	Yaw Ring Gear	wyd-ring-gear-teeth	1×	6	·	part
2.2.3	Bearing Roller	wyd-bearing-roller	200×	1,200	·	part
2.2.4	Bearing Seal	wyd-bearing-seal	2×	12	·	part
2.2.5	Fastener Set	fastener-set	1×	6	·	part
2.3	Yaw Brake System 5 parts	wyd-brake-system	1×	6	69	assembly
2.3.1	Yaw Brake Caliper 3 parts + deeper ›	wyd-brake-caliper	8×	48	5	assembly
2.3.2	Yaw Brake Disc	wyd-brake-disc	1×	6	·	part
2.3.3	Yaw Brake Pad	wyd-brake-pad	16×	96	·	part
2.3.4	Hydraulic Power Unit 4 parts + deeper ›	wyd-hydraulic-unit	1×	6	4	assembly
2.3.5	Brake Hose	wyd-brake-hose	8×	48	·	part
2.4	Yaw Control System 5 parts	wyd-control-system	1×	6	666	assembly
2.4.1	Yaw Controller 4 parts + deeper ›	wyd-yaw-controller	1×	6	128	assembly
2.4.2	Motor Drive 4 parts + deeper ›	wyd-motor-drive	6×	36	88	assembly
2.4.3	Position Encoder	wyd-position-encoder	1×	6	·	part
2.4.4	Relay	relay	8×	48	·	part
2.4.5	Wire Bundle	wire-bundle	1×	6	·	part
2.5	Wind Sensing 3 parts	wyd-wind-sensing	1×	6	6	assembly
2.5.1	Wind Vane	wyd-wind-vane	2×	12	·	part
2.5.2	Anemometer	wyd-anemometer	2×	12	·	part
2.5.3	Sensor Heater 1 parts + deeper ›	wyd-sensor-heater	2×	12	1	assembly
2.6	Lubrication System 4 parts	wyd-lubrication	1×	6	9	assembly
2.6.1	Grease Pump	wyd-grease-pump	1×	6	·	part
2.6.2	Grease Distributor	wyd-grease-distributor	1×	6	·	part
2.6.3	Lubricating Grease	wyd-grease	1×	6	·	part
2.6.4	Grease Line	wyd-grease-line	6×	36	·	part
2.7	Cable Management 4 parts	wyd-cable-management	1×	6	15	assembly
2.7.1	Cable Loop	wyd-cable-loop	1×	6	·	part
2.7.2	Twist Counter	wyd-twist-counter	1×	6	·	part
2.7.3	Cable Clamp	wyd-cable-clamp	12×	72	·	part
2.7.4	Cable Ladder	wyd-cable-ladder	1×	6	·	part
3	Yaw Brake Caliper	wind-turbine-yaw-brake	8×	8	·	part

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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

Vendor	HQ	Specialty	MOQ	Lead 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