BG-F3520 520KV 4.3KG Payload FPV Motor for 11inch&12inch&13inch Drone

Fpv motor

BG-F3520 520KV 4.3KG Payload FPV Motor for 11inch&12inch&13inch Drone

TYPE: Fpv motor Get Free Solutions Download PDF

The BGS F3520 heavy-torque outrunner brushless motor is designed for medium-large heavy-lift industrial UAV, agricultural spraying drone, cargo delivery drone and aerial survey equipment. It comes with dual KV options (440KV & 500KV) to match different propeller configurations. Matched with 14-inch heavy-duty propeller, its maximum static thrust reaches 7.8kg, delivering stable performance during long-time continuous heavy-load operation.

Motor dimensions43×65 mm

Number of slots12N14P

Copper wire grade200℃

Shaft diameter5mm

Motor weight210g

Service life>1000h

Technical specificationsView details Basic dataView details Test dataView details DrawingView details ApplicationsView details Custom solutionsView details

Technical Specifications

F3520 Basic Data
Motor Model:BGS-F3520	Number of pole pairs:7
Stator：TAIWAN / Anticorrosive	Varnished wire Degree:180℃
Motor Size：D:43 × 65 mm	Magnet Degree:150℃
Degree of Protection：IP35	Cable Length:enamelled wire 100 mm
Centrifugal Heat Dissipation：YES	Rotor Balance:≤5 mg
Propeller Mounting Holes：D:15 M3×4 / M6 Nut	Motor Balance:≤10 mg
Shaft Diameter：IN: 5 mm	Motor Mounting Holes:D:25 M3×4 / D:50 M4×4
Bearing：STT 685 ZZ2 / STT 695 ZZ1	Disruptive test:500 V

Advantages

Basic Data

MODEL	KV Value	Maximum power	Maximum current	Pull	Efficiency	Propeller	Battery	ESC
BGS-F3520	KV	W	A	g	g/W	/	S	A
	520KV	1293	60	4200	3.25	12x8;13x6.5;14x7	4-6S	120
	700KV	1031	58.6	4150	4.03	13x6.5;14x7	4-6S	120

Test Data

Model	Accelero	Voltage	Current	Input power	Output power	Torque	Speed	Thrust	Efficiency	ESC	Temperature
Model	%	V	A	W	W	N·m	RPM	gf	%	/	℃
BGS-F3520 520KV \| APC 12x8	30	24.92	3.41	85	51.1	0.119	4098	254	60.09	5~6S	65℃
	35	24.87	4.49	111.7	71.4	0.151	4513	487	63.94	5~6S
	40	24.81	5.8	143.9	94.1	0.183	4915	720	65.39	5~6S
	45	24.73	7.76	191.9	135.6	0.243	5328	953	70.64	5~6S
	50	24.63	10.44	257.1	185.3	0.302	5856	1186	72.08	5~6S
	55	24.5	13.43	329	251.8	0.377	6379	1419	76.52	5~6S
	60	24.38	16.74	408.1	314	0.436	6882	1652	76.94	5~6S
	65	24.26	20.46	496.4	393	0.508	7395	1885	79.18	5~6S
	70	24.09	24.51	590.4	467.6	0.567	7879	2118	79.2	5~6S
	75	23.94	29.06	695.7	547.2	0.624	8376	2354	78.66	5~6S
	80	23.76	33.88	805	633.6	0.683	8861	2587	78.71	5~6S
	85	23.57	39.15	922.8	711.5	0.729	9326	2820	77.1	5~6S
	90	23.4	44.4	1039	798.2	0.783	9730	3053	76.83	5~6S
	95	23.2	50.39	1169	923.1	0.874	10087	3286	78.96	5~6S
	100	23	56.22	1293.1	1010.9	0.923	10459	3519	78.18	5~6S
BGS-F3520 520KV \| APC 13x6.5	30	22.52	3.27	73.6	44.3	0.128	3298	379	60.09	5~6S	52℃
	35	22.48	4.43	99.6	63.7	0.164	3713	612	63.94	5~6S
	40	22.44	5.51	123.6	80	0.188	4115	845	65.39	5~6S
	45	22.4	6.95	155.7	110	0.232	4528	1078	70.64	5~6S
	50	22.36	8.92	199.5	143.8	0.272	5056	1311	72.08	5~6S
	55	22.32	10.74	239.7	183.4	0.314	5579	1510	76.52	5~6S
	60	22.28	13	289.6	222.8	0.35	6082	1743	76.94	5~6S
	65	22.24	15.49	344.5	272.8	0.395	6595	1976	79.18	5~6S
	70	22.2	18.09	401.6	318	0.429	7079	2209	79.2	5~6S
	75	22.16	20.34	450.7	354.5	0.447	7576	2411	78.66	5~6S
	80	22.12	23.29	515.2	405.5	0.48	8061	2644	78.71	5~6S
	85	22.08	26.18	578.1	445.7	0.499	8526	2877	77.1	5~6S
	90	22.04	29.49	650	499.3	0.534	8930	3076	76.83	5~6S
	95	22	32.52	715.4	564.9	0.581	9287	3309	78.96	5~6S
	100	21.96	35.62	782.2	611.6	0.605	9659	3542	78.18	5~6S
BGS-F3520 520KV \| APC 14x7	30	22.52	3.42	77	45.5	0.125	3473	483	59.09	5~6S	59℃
	35	22.48	4.63	104.1	65.5	0.163	3837	716	62.94	5~6S
	40	22.44	5.71	128.1	82.5	0.188	4191	949	64.39	5~6S
	45	22.4	7.15	160.2	111.5	0.234	4545	1182	69.64	5~6S
	50	22.36	9.12	203.9	144.9	0.283	4899	1415	71.08	5~6S
	55	22.32	11.44	255.3	192.8	0.351	5253	1718	75.52	5~6S
	60	22.28	13.7	305.2	231.8	0.395	5607	1951	75.94	5~6S
	65	22.24	16.9	375.9	293.9	0.471	5961	2288	78.18	5~6S
	70	22.2	20.19	448.2	350.5	0.53	6315	2521	78.2	5~6S
	75	22.16	23.44	519.4	403.4	0.578	6669	2723	77.66	5~6S
	80	22.12	28.89	639	496.6	0.675	7023	3164	77.71	5~6S
	85	22.08	31.78	701.7	534	0.691	7377	3397	76.1	5~6S
	90	22.04	35.09	773.4	586.4	0.724	7731	3596	75.83	5~6S
	95	22	38.12	838.6	653.8	0.772	8055	3933	77.96	5~6S
	100	21.96	41.22	905.2	698.6	0.791	8439	4166	77.18	5~6S
BGS-F3520 700KV \| APC 13x6.5	30	19.1	2.09	39.9	23.9	0.066	3465	369	60.1	4~5S	42℃
	35	19.06	2.83	54	34.5	0.085	3880	478	63.9	4~5S
	40	19.03	3.68	69.9	45.7	0.102	4282	589	65.4	4~5S
	45	19	4.73	89.8	63.4	0.129	4695	726	70.6	4~5S
	50	18.92	6.38	120.7	87	0.159	5223	913	72.1	4~5S
	55	18.8	8.36	157.3	120	0.2	5746	1115	76.5	4~5S
	60	18.71	10.73	200.7	154.4	0.236	6249	1330	76.9	4~5S
	65	18.68	13.38	249.9	197.9	0.28	6750	1569	79.2	4~5S
	70	18.58	16.58	308	243.9	0.322	7234	1831	79.2	4~5S
	75	18.48	20.16	372.6	293.1	0.362	7731	2089	78.7	4~5S
	80	18.38	23.85	438.3	345	0.401	8216	2286	78.7	4~5S
	85	18.3	27.83	509.3	392.7	0.432	8681	2513	77.1	4~5S
	90	18.16	32.86	596.9	458.6	0.482	9085	2761	76.8	4~5S
	95	18.02	38.72	697.5	550.7	0.557	9442	3133	79	4~5S
	100	17.88	44.48	795.3	621.8	0.605	9814	3441	78.2	4~5S
BGS-F3520 IPE 700KV \| APC 14x7	30	19.09	2.19	41.8	25.2	0.077	3123	407	60.2	4~5S	55℃
	35	19.06	3.05	58.2	35.9	0.097	3530	535	61.6	4~5S
	40	19.02	4.24	80.6	52.3	0.126	3964	691	64.9	4~5S
	45	18.95	5.97	113	79.3	0.168	4509	906	70.2	4~5S
	50	18.84	8.28	156	115.4	0.218	5055	1154	74	4~5S
	55	18.76	10.99	206.2	157.1	0.27	5555	1421	76.2	4~5S
	60	18.7	14.25	266.3	202.6	0.32	6046	1684	76.1	4~5S
	65	18.6	17.73	329.7	251.9	0.372	6467	1972	76.4	4~5S
	70	18.5	21.67	400.9	309.1	0.426	6930	2227	77.1	4~5S
	75	18.38	26.32	483.7	376.9	0.49	7346	2540	77.9	4~5S
	80	18.27	31.62	577.7	446	0.549	7758	2846	77.2	4~5S
	85	18.15	37.05	672.3	498.1	0.583	8159	3089	74.1	4~5S
	90	17.98	43.24	777.6	585.3	0.658	8494	3404	75.3	4~5S
	95	17.8	50.34	895.8	668	0.726	8786	3748	74.6	4~5S
	100	17.57	58.7	1031.4	772.8	0.84	9020	4151	74.9	4~5S

Drawing

Customizable Solutions

Parts

Applications

Product Advantages

Dual KV Selection: 440KV for higher efficiency long endurance, 500KV for faster response & stronger instantaneous thrust, flexible matching for different UAV demands.
Large Torque & Stable Thrust: Max 7.8kg single-motor thrust, perfectly matched for medium-size heavy-lift multi-rotor drones.
High Temperature Resistant Winding: Class H high-temperature enameled wire, anti-overheating & anti-demagnetization under long continuous heavy-load working state.
Solid Structural Design: Standard 6mm output shaft, good shock resistance, low deformation under high-speed rotation.
Precision Dynamic Balance Calibration: Low vibration & low noise during operation, extending overall drone service life.
Wide Compatibility: Fits most mainstream heavy-duty brushless ESCs on market, easy installation & replacement.

Application Scenarios

Medium-volume agricultural pesticide spraying drone
Medium load logistics & cargo delivery UAV
Long-endurance aerial mapping & surveying drone
Custom medium-sized multi-rotor industrial heavy-lift UAV

Matching Recommendation

Propeller: 14-inch carbon fiber heavy-load propeller
ESC: 150A+ high-current heavy-duty brushless ESC
Battery: 6S lithium polymer battery pack
Frame: 55~60 inch medium multi-rotor UAV frame