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Fixed-Wing Motors

BGS-FW525B 250KV 10KG Payload drone motor for 18inch Surveying drone

Product Number:FW525B

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The AX525-B brushless motor adopts high-temperature resistant coating and high-grade heat-resistant enameled wire. It features precise dynamic balance and stable high-temperature performance for heavy-lift industrial fixed-wing drones.

Motor dimensions
63.6×78.5mm
Number of slots
12N14P
Copper wire grade
220℃
Shaft diameter
8mm
Motor weight
620g
Service life
＞1000h

Technical Specifications

AX525-B Basic Data
KV rating:250 KV	Rotor Dynamic Balance Standard:≤30mg
Motor size:Φ63.6×78.5mm	Package Size:19710475mm
Number of slots & poles:12N14P	Rated voltage (LiPo):12S
Shaft diameter:IN: 10mm, OUT: 8mm	Max. continuous power:763W
Bearing Model:6800/6900ZZ bearing	Max. Thrust:10kg
Motor weight (including wires):620g	Max. current:100A
Magnet Temperature Resistance Grade:180°C	No-Load Current (15V):2.8A
Stator Process:150℃ high temperature resistant coating	Interphase Resistance:22mΩ
Copper wire grade:220℃ heat resistant enameled wire	Service life:Refer to bearing and dynamic balance specifications
Lead Wire Specification x Length:Enameled wire 150mm	Voltage regulator:N/A
Coil Withstand Voltage:500V/5s	Propeller specifications:N/A

Basic Data

MODEL	KV Value	maximum power	Maximum current	pull	Efficiency	Applicable blades	Number of batteries	Adapt to electric adjustment
BGS-FW525B	KV	W	A	g	g/W	/	S	A
	250	10056	8583	96.52	2.42	APCAUFZ 18*14	4	90
	250	10056	8583	96.52	2.42	APCAUFZ 18*14	4	90

test data

Model	Accelerator	Voltage	Current	Power	Speed	Torque	Voltag	Efficiency
AX530-B	(%)	(V)	(A)	(W)	(RPM)	(N.m)	(g)	(g/W)
	40	44.68	7.09	317	3842	0.62	1951	6.16
	45	44.64	9.28	414	4239	0.77	2388	5.77
	50	44.57	12.59	561	4717	0.96	2968	5.29
	55	44.49	17.16	763	5238	1.18	3679	4.82
	60	44.4	21.78	967	5661	1.38	4299	4.45
	65	44.32	26.41	1170	6022	1.57	4870	4.16
	70	44.21	32.09	1419	6396	1.78	5514	3.89
	75	44.08	39.12	1724	6790	2.07	6252	3.63
	80	43.92	47.04	2066	7180	2.36	7041	3.41
	90	43.55	66.83	2910	7864	2.98	8435	2.9
	100	42.98	96.52	4149	8583	3.76	10056	2.42

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The 525B Brushless Outrunner Motor is engineered for medium and large fixed-wing UAVs, delivering powerful thrust, high efficiency, and reliable performance for demanding flight missions. Available in 250KV, it provides up to 10 kg of maximum thrust when paired with the recommended propeller and ESC. Optimized for 6–12S LiPo battery systems, it features a high-efficiency magnetic circuit, precision-balanced rotor, and premium bearings to ensure smooth operation, low vibration, and extended service life. Ideal for fixed-wing drones, VTOL UAVs, cargo UAVs, mapping aircraft, surveillance platforms, agricultural UAVs, and industrial UAV applications. Custom shaft dimensions, cable length, and mounting configurations are available to support OEM and ODM requirements.