BO4840NH2B

48mm high-power brushless motor
Diameter: 48mm; Length: 38.5mm; Voltage: 18.0v, 24.0v, 36.0v; Max output power: 2367 - 2928W; Speed: 10500rpm; Rated torque: 420 - 427mNm.

Application: Drone, electric tools, automation equipment, smart home and other driving fields.
Customizable: Specifications, wires, shaft length, performance, bearings, gearbox, Hall sensors, encoders, driver.

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Parameter Outline Drawing Characteristic Curve Download

Characteristics	UNIT	01-105-18.0	02-105-24.0	03-105-36.0
Voltage	V	18.0	24.0	36.0
Terminal resistance	Ω	0.034	0.053	0.11
No-load speed	rpm	10500	10500	10500
No-load current	A	1.6	1.2	0.9
Stall torque	mNm	8614	9831	10656
Stall current	A	529.4	452.8	327.3
Nominal torque	mNm	423	427	420
Nominal speed	rpm	9350	9400	9440
Nominal current	A	25.7	19.5	12.9
Max.output power	W	2367	2701	2928
Max.efficiency	%	89.2	89.9	89.7
Back-EMF constant	mV/rpm	1.7	2.3	3.4
Torque constant	mNm/A	16.3	21.8	32.7
KV Value	mH	583	437.5	292
Speed/torque gradient	rpm/mNm	1.22	1.07	0.99
Rotor inertia	gcm²	398	398	398
Weight	g	267	267	267