22mm Slotless Brushless DC Motor

DINGS' Slotless Brushless DC Motor, 22ZWWC48 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.

22ZWWC48 Slotless Brushless DC Motor has high durability, low electrical noise and high efficiency.

Maximum efficiency of motor reaches 91% and this motor is suitable for the servo system which needs quick movement and high power.

22ZWWC48 Rated Power is 100W and Peak Torque is 419.33mN.m.

Slotless Brushless DC Motor images

Motor Characteristics

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Motor Part Number 22ZWWC48
General Informaiton
Dimension Motor Length mm 48 48 48 48
Mounting Hole mm φ22 φ22 φ22 φ22
Motor Shaft mm 6 6 6 6
Pole Pairs - 1 1 1 1
Phase Resistance Ω 0.26 0.3 0.57 1
Phase Inductance mH 0.018 0.027 0.06 0.11
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 110 110 110 110
Performance Parameters
Rated Voltage V 12 24 36 48
Rated Power W 83 100 100 100
Rated Torque mN·m 20 20 20 20
Rated Speed RPM 40000 49000 47400 49600
Rated Current A 7.95 4.68 3.12 2.29
No Load Speed RPM 50000 55000 53000 54000
No Load Current A 0.3 0.4 0.32 0.14
Motor Efficiency % 87 89 89 91
Noise (Ambient noise 20db, test distance 1M) dB <50 <50 <50 <50
Thermal Parameters
Enclosure - Ambient Thermal Resistance (No Load) K/W 0.38 0.58 0.51 0.42
Motor Thermal Time Constant (No Load) S 840 600 900 1200
Ambient Temperature 21.4 22 24.7 21.1
Maximum Winding Temperature (No Load) 52.7 80 75.5 70.5
Motor Constant Coefficient
Torque Constant mN·m/A 2.52 4.27 6.41 8.74
Back-EMF Constant Peak Value V/Krpm 0.37 0.63 0.95 1.29
Effective Value V/Krpm 0.26 0.45 0.67 0.91
Calculated Value
Peak Torque mN·m 116.11 341.76 404.72 419.33
Peak Current A 46 80 63 48
Inertia Moment g·cm² 1.15 1.15 1.15 1.15
Mechanical Time Constant ms 4.72 1.89 1.60 1.51
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

22mm Slotless BLDC image