Zero-backlash direct drive transmission eliminates mechanical errors from intermediate components such as gearboxes and couplings. The low cogging torque design ensures that torque ripple is controlled within 1%, and can be as low as 0.5% for some products.

Model
M37.8026
Cogging Torque
0.05 Nm
Motor Constant
0.057 Nm/√m
Motor Mass
0.22 kg

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Details

Values at Nominal Voltage, 20°C	Symbol	Unit	1Y	2Y	3Y	4Y	5Y	6Y	7Y	8Y	9Y	Tolerance
Rated Voltage	U	VDC	32	48	70	90	105	150	210	260	300	±10%
No-load Speed	n	rpm	14700	12600	12900	12700	12800	13800	13300	13200	14000	±10%
Speed/Torque Slope	△n / △T	rpm/Nm	3.27	3.2	3.82	3.47	3.58	4.19	3.92	4	4.1	/
Torque Constant	Kt	Nm/A	0.019	0.034	0.05	0.064	0.074	0.1	0.14	0.18	0.2	/
Back EMF Constant	Ke	V/krpm	2.1	3.7	5.3	6.9	8	10.8	15.7	19.5	21.7	/
Winding Resistance	Rm	Ω	0.12	0.38	0.75	1.3	1.7	3.4	6.6	10.5	13.3	±10%
Winding Inductance	Lm	mH	0.087	0.27	0.55	0.92	1.23	2.18	4.59	7.07	8.73	±15%
Motor Lead Wire	/	AWG	18	22	22	24	24	24	26	26	26	/
Cogging Torque (Peak-to-Peak)	Tcog	Nm	0.05									/
Mechanical Time Constant	Tm	msec	0.41									/
Motor Constant	Km	Nm/√m	0.057									/
Moment of Inertia	J	kg*m²	2.70E-06									/
Motor Mass (Frameless)	W1	kg	0.22									/
Number of Poles	2p	/	6									/
Winding Configuration	/	/	Y									/
Number of Motor Phases	/	/	3									/

Rated Values for Continuous Operation	Symbol	Unit	1Y	2Y	3Y	4Y	5Y	6Y	7Y	8Y	9Y	Tolerance
Rated Torque (In Air)	T0	Nm	0.11									±10%
Rated Speed (In Air)	N0	rpm	12000									±5%
Rated Current (In Air)	I0	A	5.1	3.4	2.3	1.8	1.5	1.1	0.78	0.63	0.55	±10%
Rated Torque (Water Cooled)	T1	Nm	0.4									±10%
Rated Speed (Water Cooled)	N1	rpm	10000									±5%
Rated Current (Water Cooled)	I1	A	16.5	11	7.5	5.8	5	3.5	2.5	2	1.8	±10%

Instantaneous Peak Values in Air (10s Duration)	Symbol	Unit	1Y	2Y	3Y	4Y	5Y	6Y	7Y	8Y	9Y	Tolerance
Peak Torque	Tp	Nm	0.59									/
Peak Current	Ip	A	20.5	13.5	9	7	6.2	4.5	3.2	2.5	2.3	/

Motor Curves

Notes:

1. The charts below show the recommended relationship between motor output speed and torque at an ambient temperature of 30°C, with a 5mm thick aluminum motor housing.

2. The charts compare the operating characteristics of the motor under different heat dissipation conditions (in air and in water).

3. The charts show characteristics at nominal voltage; increasing the voltage will shift the operating curve upward, while decreasing the voltage will shift it downward.