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

Gearbox and encoder may be fitted as required
24 volt, 2000rpm 4000rpm 6000rpm, 23 Oz-in ~ 86 oz-in (0.16Nm~ 0.6Nm),
33W ~ 250W (1/3hp)

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
Max. radial force75N @ 10mm from the flange
Max. axial force15N
Insulation classClass B
Dielectric strength500VDC for one minute
Insulation resistance100MΩ min., 500VDC
Model GM57BLY
45-230
GM57BLY
45-250
GM57BLY
55-230
GM57BLY
55-250
GM57BLY
75-230
GM57BLY
75-250
GM57BLY
95-230
GM57BLY
95-250
GM57BLY
95-260
GM57BLY
115-230
Number of pole4 Poles
Number of phase3 Phase
Rated voltageVolt24242424242424242424
Rated speedRPM3000500030005000300050003000500060003000
Rated torqueOz-in881616323248484864
Nm0.0550.0550.110.110.220.220.330.330.330.45
Rated powerWatt1728355870120105180210140
Peak torqueOz-in242448489696144144144192
Nm0.1650.1650.330.330.660.661111.35
Peak currentA3.485.87.21214.42419.8334025.8
Back E.M.FV/KRPM3.83.86.66.66.66.66.66.66.66.6
Rotor inertiakg.c㎡0.320.320.750.751.191.191.731.731.732.3
Body lengthmm454555557575959595115
WeightKg0.330.330.440.440.750.751111.25

Dimensions (mm) – Two options of faceplates

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

NEMA 11 bldc motor wiring

GM57BLY55-230 Speed vs Torque Curve

Rated n = 3000 rpm, Rated T = 0.11 Nm

GM57BLY55-230 NEMA 23 BLDC Motor Torque Speed Curve

GM57BLY95-230 Speed vs Torque Curve

Rated n = 3000 rpm,  Rated T = 0.33 Nm

GM57BLY95-230 NEMA 23 BLDC Motor Speed Torque Curve

GM57BLY95-114 Speed vs Torque Curve

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

12V NEMA 23 BLDC Motor Speed Torque Curve

GM57BLY95-130 Speed vs Torque Curve

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

12V 3000rpm BLDC motor speed torque curve

GM57BLY115-117 Speed vs Torque Curve

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

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

NEMA 23 BLDC Motor 3000rpm speed torque curve