Brushless DC Motors
for Printers, Copiers,

and Air Moving Devices
Model Torque
Constant
(mNm/A)
Rotational Speed Max.
Output
(W)
Rotor
Inertia
(g-cm2)
Operating Voltage Max.
Peak
Current
(A)
Sound
Pressure*

(dBA)
Operating
Temperature

Range
(°C)
Min.
(rpm)
Max.
(rpm)
Nominal
(V)
Range
(V)
40M 40.0 1,000 4,000 20.5 300 24 21.6 - 26.4 3.5 28 0 to +50
45M 52.5 1,000 4,000 22.6 450 24 21.6 - 26.4 3.5 28 0 to +50
50ML 62.5 1,000 4,000 22.6 850 24 21.6 - 26.4 3.5 30 0 to +50
50M 67.5 1,000 4,000 39.0 1,000 24 21.6 - 26.4 6.0 30 0 to +50
58M 75.0 1,000 4,000 51.3 1,500 24 21.6 - 26.4 8.0 33 0 to +50
 † Values are representative of current designs. Design-to-specification windings, drive and control circuits are available.
 *  Measured at 1500 rpm under no-load conditions, 50 cm (axially) from end of the output shaft.
Contact! Home Cooling Fans Brushless DC Motors Spindle Motors

These three-phase brushless dc motors, which were originally designed for use in laser beam printers (LBP) and plain paper copiers (PPC), have highly accurate rotational speed control - to within 0.1 percent, depending on the driver configuration.

More recent applications of the outer rotor designs, as motors for automotive seat coolings and battery coolers in hybrid vehicles, take advantage of their low noise and high efficiency.

Type M motors offer:

- 3-phase, outer rotor, ball bearing designs

- 1W to 50W continuous output power

- Hall effect commutation

- Availability with or without motor drive circuits

- Tachometer option (50 square wave pulses per revolution)

- Pulse-width modulation (PWM) or phase-locked loop (PLL) speed control

- Choice of integral hobbed pinion or straight motor shaft

brushless dc motors for laser printers, copiers, automotive seat coolers, hybrid vehicle battery coolers

Nidec 40M, 45M, 50ML (low profile), 50M, and 58M outer rotor, 3-phase designs with or without motor drive and control circuits

b2b electronics - electric motor makers

UltraFlo - New High-Performance Cooling Fans and Blowers from Nidec.