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  
Pole pair - 1 1 1 1 2
Phase resistance Ω 0.26 0.3 0.57 1 0.94
Phase inductance mH 0.018 0.027 0.06 0.11 0.057
winding connection method - Star shape Star shape Star shape Star shape Star shape
Insulation class - B B B B B
Duty type - S2 S2 S2 S2 S1
Feedback method - Hall sensors Hall sensors Hall sensors Hall sensors Hall sensors
Commutation angle - 120° 120° 120° 120° 120°
Insulation strength
(Withstand voltage)
- 500VAC/1KHz/1mA/1s 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 100 MΩ/500VDC
Weight g 110 110 110 110 110
Rated voltage V 18 24 36 48 24
Rated power W 83 100 100 100 53
Rated torque mN·m 20 20 20 20 25
Rated speed RPM 40000 49000 47400 49600 20100
Rated current A 7.95 4.68 3.12 2.29 3
No load speed RPM 50000 55000 53000 54000 25700
No load current A 0.3 0.4 0.32 0.14 0.18
Motor efficiency % 87 89 89 91 81
Noise
(Ambient noise 20db, test distance 1m)
dB <50 <50 <50 <50 <50
Case - Environmental thermal resistance (no load) K/W 0.38 0.58 0.51 0.42 1.12
Motor thermal time constant (no load) S 840 600 900 1200 620
Ambient temperature 21.4 22 24.7 21.1 23.3
Max. winding temperature (no load) 52.7 80 75.5 70.5 82
Torque constant mN·m/A 2.52 4.27 6.41 8.74 8.33
Back-EMF constant - peak value V/Krpm 0.37 0.63 0.95 1.29 1.23
Back-EMF constant - effective value V/Krpm 0.26 0.45 0.67 0.91 0.87
Peak torque mN·m 116.11 341.76 404.72 419.33 212.77
Peak current A 46 80 63 48 26
Inertia moment g·cm² 1.15 1.15 1.15 1.15 1.15
mechanical time constant ms 4.72 1.89 1.60 1.51 1.56
End bell - Stainless steel 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 Deep Groove Ball Bearing
Magnet - Sinter NdFedB Sinter NdFedB Sinter NdFedB Sinter NdFedB Sinter NdFedB
Rotation shaft - Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel

Dimensional Drawing

Torque Performance Curves

Options

Precision Planetary gearbox
Precision Planetary gearbox

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Stage - Stage 1 Stage 2 Stage 3 Stage 4
Reduction Ratio X : 1 3.947, 5.308 16, 21, 26, 28, 35 62, 83, 103, 111, 138,
150, 172, 186, 231
243, 326, 406, 439, 546,
590, 679, 734, 794, 913,
987, 1135, 1227, 1526
Max. Continuous Torque N.m 0.85 1.9 3 4
Max. Continuous Output Power W 60 30 11 7
Max. Efficiency % 90 80 75 65
Max. Backlash ° 0.6 0.7 0.7 0.8
Motor Gear Hole (ID) mm Φ2.5-0.015/-0.025
Φ3.0-0.016/-0.026
Φ1.5-0.010/-0.02
Φ2.5-0.010/-0.02
Φ3.0-0.016/-0.026
Φ1.5-0.010/-0.02
Φ2.5-0.010/-0.02
Φ3.0-0.016/-0.026
Φ1.5-0.010/-0.02
Φ2.5-0.010/-0.02
Φ3.0-0.016/-0.026
Gearbox Length L mm 22.3 33 39.6 46.3
Weight g 59 83 97 112