42mm Slotless Brushless DC Motor

DINGS' Slotless Brushless DC Motor, 42ZWWC80 can avoid the pulsation of air gap magnetic induction caused by uneven magnetic resistance in the teeth.

It can eliminate the pulse loss in the armature core and the surface loss on the main pole surface.

42ZWWC80 Slotless Brushless DC Motor has high durability, low electrical noise and high efficiency.

Maximum efficiency of motor reaches 80% and this motor is suitable for the servo system which needs quick movement and high power.

42ZWWC80 Rated Power is 160W and Peak Torque is 1455.16mN.m.

Slotless Brushless DC Motor images

Motor Characteristics

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Motor Part Number 42ZWWC80
General Informaiton
Dimension Motor Length mm 80 80 80 80
Mounting Hole mm φ42 φ42 φ42 φ42
Motor Shaft mm 18 18 18 18
Pole Pairs - 1 1 1 1
Phase Resistance Ω 0.4 0.45 0.6 0.95
Phase Inductance mH 0.085 0.14 0.14 0.23
Winding Connection - Star Star Star Star
Insulation Class - B B B B
Duty Type - S2 S2 S2 S2
Feedback Method - Hall Sensors Hall Sensors Hall Sensors Hall Sensors
Commutation Angle - 120° 120° 120° 120°
Insulation Strength (Withstand Voltage) - 500VAC/1KHz/1mA/1s 500VAC/1KHz/1mA/1s 500VAC/1KHz/1mA/1s 500VAC/1KHz/1mA/1s
Insulation Resistance - 100 MΩ/500VDC 100 MΩ/500VDC 100 MΩ/500VDC 100 MΩ/500VDC
Weight gr 500 500 500 500
Performance Parameters
Rated Voltage V 18 24 36 48
Rated Power W 66 80 100 160
Rated Torque mN·m 90 90 90 120
Rated Speed RPM 6678 8346 11619 12200
Rated Current A 4.89 4.17 3.47 4.17
No Load Speed RPM 9000 11000 13000 13800
No Load Current A 0.6 0.69 0.6 0.58
Motor Efficiency % 75 80 80 80
Noise (Ambient noise 20db, test distance 1M) dB <50 <50 <50 <50
Thermal Parameters
Enclosure - Ambient Thermal Resistance (No Load) K/W 0.43 0.50 0.67 0.26
Motor Thermal Time Constant (No Load) S 900 1620 2040 2040
Ambient Temperature 23.1 23.5 23 23
Maximum Winding Temperature (No Load) 51.5 63.7 90 90
Motor Constant Coefficient
Torque Constant mN·m/A 18.41 21.60 25.92 28.80
Back-EMF Constant Peak Value V/Krpm 2.73 3.20 3.84 4.26
Effective Value V/Krpm 1.93 2.26 2.71 3.02
Calculated Value
Peak Torque mN·m 828.41 1152.00 1555.20 1455.16
Peak Current A 45 53 60 51
Inertia Moment g·cm² 96.3 96.3 96.3 96.3
Mechanical Time Constant ms 11.37 9.29 8.60 11.03
Material
End Cover Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Bearing Deep Groove Ball Bearing Deep Groove Ball Bearing Deep Groove Ball Bearing Deep Groove Ball Bearing
Magnet Sintered NdFeB Sintered NdFeB Sintered NdFeB Sintered NdFeB
Shaft Carbon Steel Carbon Steel Carbon Steel Carbon Steel

Dimensional Drawing

Torque Performance Curves

42mm Slotless BLDC image