NEMA 23 Round Brushless DC Motor - 4 poles 57mm Diameter

Gearbox and encoder may be fitted as required
24 volt, 2000rpm 4000rpm 6000rpm, 8 Oz-in ~ 64 oz-in (0.055 Nm~ 0.45 Nm),
17W ~ 140W (1/5hp)

NEMA 23-Round-Brushless-DC Motor-4-poles-57mm-Diameternema23-round-brushless-dc-motor

General Specifications 
Winding connectionStar / WYE
Hall effect angle120 degree electrical angle
Radial play0.02mm@450g
End play0.02mm@450g
Insulation classClass B
Dielectric strength500VDC for one minute
Insulation resistance100MΩ min., 500VDC
Model GM57BLY
55-135(CW)
GM57BLY
55-150(CW)
GM57BLY
55-235(CW)
GM57BLY
55-260(CW)
GM57BLY
95-130
GM57BLY
115-120
GM57BLY
45-230
GM57BLY
75-230
GM57BLY
75-270
GM57BLY
95-230
GM57BLY
95-215
GM57BLY
115-230
GM57BLY
115-215
Number of pole4 Poles
Number of phase3 Phase
Rated voltageVolt12122424121224242424242424
Rated speedRPM3500500035006000300020003000300060003000150030001500
Rated torqueOz-in24243730486412402448486464
Nm0.170.170.260.210.330.450.080.280.170.330.330.450.45
Rated currentA811.55.3813131.765.36.63.38.65
Rated powerWatt61929513510010025881051055014070
Peak torqueOz-in48487460144144369648144144192192
Nm0.340.340.540.4211.350.240.60.5111.351.35
Peak currentA162210.61640405131519.89.925.815
Rotor inertiag.c㎡7575757517323032119119173173230230
Length Lmm55555555951154575759595115115
WeightKg0.440.440.440.4411.250.330.750.75111.251.25

Dimensions (mm) – Two options of faceplates


Wiring Diagram

GM57BLY55-135(CW) Speed vs Torque Curve

Rated Voltage = 12V, Rated n = 3500 rpm, Rated T = 0.17 Nm

GM57BLY55-135-Speed vs Torque Curve
GM57BLY55-135-Speed vs Torque Curve

GM57BLY55-150(CW) Speed vs Torque Curve

Rated Voltage= 12V, Rated n = 5000 rpm,  Rated T = 0.17 Nm

GM57BLY55-150-Speed vs Torque Curve
GM57BLY55-150-Speed vs Torque Curve

GM57BLY55-235(CW) Speed vs Torque Curve

Rated Voltge = 24V, Rated n = 3500 rpm, Rated T = 0.26 Nm

GM57BLY55-235(CW) Speed vs Torque Curve
GM57BLY55-235(CW) Speed vs Torque Curve

GM57BLY55-260(CW) Speed vs Torque Curve

Rated Voltage= 24V, Rated n = 6000 rpm,  Rated T = 0.21 Nm

GM57BLY55-260(CW)-Speed vs Torque Curve
GM57BLY55-260(CW)-Speed vs Torque Curve

GM57BLY55-230 Speed vs Torque Curve

Voltage = 24V, Rated n = 3000 rpm, Rated T = 0.11 Nm

GM57BLY55-230 NEMA 23 BLDC Motor Torque Speed Curve

GM57BLY95-230 Speed vs Torque Curve

Voltage = 24V, Rated n = 3000 rpm,  Rated T = 0.33 Nm

GM57BLY95-230 NEMA 23 BLDC Motor Speed Torque Curve

GM57BLY95-114 Speed vs Torque Curve

Voltage = 12V, Rated n = 1400 rpm, Rated T = 0.3 Nm

12V NEMA 23 BLDC Motor Speed Torque Curve

GM57BLY95-130 Speed vs Torque Curve

Voltage = 12V, Rated n = 3000 rpm, Rated T = 0.33 Nm

12V 3000rpm BLDC motor speed torque curve

GM57BLY115-117 Speed vs Torque Curve

Voltage = 12V, Rated n = 1700 rpm, Rated T = 0.45 Nm

NEMA 23 BLDC Motor 1700 rpm speed torque curve

GM57BLY115-230 Speed vs Torque Curve

Voltage = 24V, Rated n = 3000 rpm, Rated T = 0.45 Nm

NEMA 23 BLDC Motor 3000rpm speed torque curve