42mm Brushless DC Motor

42mm Brushless DC Motor has Max. 0.3N·m rated torque and triple stack 42mm Motor can generate 90W capacity of rated power.

Single and double stack motor has Star winding connection and for triple stack motor has delta winding connector, all 42mm Brushless DC Motors are 5 pole pairs motors.

Hall sensors feed back method as standard and also additional incremental encoder is available.

42mm Brushless DC Motor images

Motor Characteristics

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Motor Part Number 42ZWS80L-1 42ZWS100L-1 42ZWS120L-1
General Information
Dimension Motor Length mm 80 100 120
Mounting Hole mm 36(±0.2) 36(±0.2) 36(±0.2)
Motor Shaft mm 25(±0.5) 25(±0.5) 25(±0.5)
Number of Slots - 12 12 12
Pole Pairs - 5 5 5
Phase Resistance Ω 1.28 0.64 0.32
Phase Inductance mH 0.574 0.287 0.143
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 0.3 0.5 0.7
Performance Parameters
Rated Voltage V 24 24 24
Rated Power W 30 60 90
Rated Torque N·m 0.1 0.2 0.3
Rated Speed RPM 3000 3000 3000
Rated Current A 1.9 3.7 5.6
No Load Speed RPM 4000 4000 4000
No Load Current A 0.25 0.5 0.75
Motor Efficiency % 78 77.6 78
Static Torque mN·m 13.2 13.2 13.2
Noise (Ambient noise 20db, test distance 1M) dB <50 <50 <50
Thermal Parameters
Enclosure - Ambient Thermal Resistance K/W 0.75 0.38 0.25
Motor Thermal Time Constant min 1.26 1.26 1.26
Ambient Temperature 31.3 31.3 31.3
Maximum Winding Temperature 68.5 68.5 68.5
Motor Constant Coefficient
Torque Constant mN·m/A 52.63 54.05 53.57
Back-EMF Constant Peak Value V/Krpm 12.6 12.6 12.6
Effective Value V/Krpm 8.9 8.9 8.9
Calculated Value
Peak Torque N·m 0.3 0.6 0.9
Peak Current A 5.7 11.1 16.8
Inertia Moment Kg·cm² 0.085 0.167 0.248
Current Density A/m² 11.95 11.51 11.15
Mechanical Time Constant S 2.07 1.98 1.48
Electrical Time Constant S 0.45 0.45 0.45
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 40Cr Carbon Steel 40Cr Carbon Steel 40Cr

Dimensional Drawing

Torque Performance Curves

Torque Performance Curves image