B4040NH2B

40mm brushless motor
Diameter: 40mm; Length: 40.3mm; Voltage: 18.0v, 24.0v; Max output power: 49.1 - 69.7W; Speed: 30000 - 42000rpm; Rated torque: 5mNm.

Application : Medical, automation equipment, precision instruments, and other precision drive fields.
Customizable : Specifications, wire length, shaft length, performance, bearings, gearbox, encoder, driver

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Parameter Outline Drawing Characteristic Curve Download

Characteristics	UNIT	02-420-18.0	01-420-24.0	03-300-24.0
Voltage	V	18.0	24.0	24.0
Terminal resistance	Ω	1.5	2	2.8
No-load speed	rpm	42000	42000	30000
No-load current	A	0.168	0.2	0.2
Stall torque	mNm	47.7	63.3	62.5
Stall current	A	12	12	8.6
Nominal torque	mNm	5	5	5
Nominal speed	rpm	37000	38000	27000
Nominal current	A	1.4	1.2	0.9
Max.output power	W	52.6	69.7	49.1
Max.efficiency	%	77.7	75.8	71.7
Back-EMF constant	mV/rpm	0.4	0.56	0.78
Torque constant	mNm/A	4	5.4	7.5
KV Value	rpm/V	2333.3	1750	1250
Speed/torque gradient	rpm/mNm	879.7	663.3	480.3
Rotor inertia	gcm2	20	20	20
Weight	g	200	200	200