57mm Brushless DC Motor

57mm Brushless DC Motor has Max. 0.33N·m rated torque and triple stack 57mm Motor can generate 103.7W capacity of rated power.

57mm motors have Star winding connection.

And 57mm Brushless DC Motors are 5 pole pairs motors Hall sensors feed back method as standard and also additional incremental encoder is available.

57mm Brushless DC Motor images

Motor Characteristics

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Motor Part Number 57ZWS50X-1 57ZWS63X-1 57ZWS75X-1
General Information
Dimension Motor Length mm 50 63 75
Mounting Hole mm 47.14(±0.2) 47.14(±0.2) 47.14(±0.2)
Motor Shaft mm 25(±0.5) 25(±0.5) 25(±0.5)
Pole Pairs - 5 5 5
Phase Resistance Ω 0.958 0.473 0.301
Phase Inductance mH 0.742 0.357 0.205
Winding Connection - Star Star Star
Insulation Class - B B B
Duty Type - S1 S1 S1
Feedback Method - Hall Sensors Hall Sensors Hall Sensors
Commutation Angle - 120° 120° 120°
Insulation Strength (Withstand Voltage) - 500VAC/1KHz/1mA/1s 500VAC/1KHz/1mA/1s 500VAC/1KHz/1mA/1s
Insulation Resistance - 100 MΩ/500VDC 100 MΩ/500VDC 100 MΩ/500VDC
Weight Kg 0.42 0.65 0.87
Performance Parameters
Rated Voltage V 24 24 24
Rated Power W 37.4 69.1 103.7
Rated Torque N·m 0.119 0.22 0.33
Rated Speed RPM 3000 3000 3000
Rated Current A 2.2 4.1 6
No Load Speed RPM 4000 4000 4000
No Load Current A 0.25 0.5 0.75
Motor Efficiency % 75 75 75
Noise (Ambient noise 20db, test distance 1M) dB <50 <50 <50
Thermal Parameters
Enclosure - Ambient Thermal Resistance K/W 0.53 0.27 0.18
Motor Thermal Time Constant min 4.6 5 5.7
Ambient Temperature 29 29 29
Maximum Winding Temperature 77.4 77.4 77.4
Motor Constant Coefficient
Torque Constant N·m/A 0.054 0.054 0.055
Back-EMF Constant Effective Value V/Krpm 5.66 5.66 5.66
Calculated Value
Peak Torque N·m 0.357 0.66 0.99
Peak Current A 6.6 12.3 18
Inertia Moment Kg·cm² 0.19 0.38 0.56
Material
End Cover Aluminium Die Casting Aluminium Die Casting Aluminium Die Casting
Bearing Deep Groove Ball Bearing Deep Groove Ball Bearing Deep Groove Ball Bearing
Magnet Sinter NdFedB Sinter NdFedB Sinter NdFedB
Shaft Carbon Steel Carbon Steel Carbon Steel

Dimensional Drawing

Torque Performance Curves