42mm Slotless Brushless DC Motor

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 t···

  • Motor Characteristics

Motor part number42ZWWC80
Pole pair11112
Phase resistance(Ω)0.40.450.60.950.22
Phase inductance(mH)0.0850.
winding connection methodStar shapeStar shapeStar shapeStar shapeStar shape
Insulation classBBBBB
Duty typeS2S2S2S2S1
Feedback methodHall sensorsHall sensorsHall sensorsHall sensorsHall sensors
Commutation angle120°120°120°120°120°
Insulation strength
(Withstand voltage)
Insulation resistance100 MΩ/500VDC100 MΩ/500VDC100 MΩ/500VDC100 MΩ/500VDC100 MΩ/500VDC
Rated voltage(V)1824364824
Rated power(W)6680100160102
Rated torque(mN·m)909090120180
Rated speed(RPM)6678834611619122005400
Rated current(A)4.894.173.474.175.7
No load speed(RPM)90001100013000138006800
No load current(A)0.60.690.60.580.42
Motor efficiency(%)7580808087.9

(Ambient noise 20db, 

test distance 1m)(dB)

Case - Environmental thermal resistance (no load)(K/W)0.430.500.670.260.41
Motor thermal time constant (no load)(S)9001620204020401340
Ambient temperature(℃)23.123.5232322.6
Max. winding temperature (no load)(℃)51.563.7909072.1
Torque constant(mN·m/A)18.4121.625.9228.831.58
Back-EMF constant - peak value(V/Krpm)2.733.203.844.264.68
Back-EMF constant - effective value(V/Krpm)1.932.262.713.023.31
Peak torque(mN·m)828.4111521555.21455.163444.98
Peak current(A)45536051109
Inertia moment(g·cm²)96.396.396.396.396.3
mechanical time constant(ms)11.379.298.6011.032.12
End bellStainless steelStainless steelStainless steelStainless steelStainless steel
BearingDeep Groove Ball BearingDeep Groove Ball BearingDeep Groove Ball BearingDeep Groove Ball BearingDeep Groove Ball Bearing
MagnetSinter NdFedBSinter NdFedBSinter NdFedBSinter NdFedBSinter NdFedB
Rotation shaftCarbon SteelCarbon SteelCarbon SteelCarbon SteelCarbon Steel
  • Dimensional Drawing

Brushless DC Motor Size 42mm - images

42mm Slotless BLDC image

  • Torque Performance Curves

  • 1 Pore pairs16mm Slotless BLDC image

  • 2 Pole pairs

16mm Slotless BLDC image

  • Options

  • Precision Planetary gearbox

Precision Planetary gearbox

Series-1 level2 level3 level4 level
Total speed ratioX : 13.947 5.30816 21 26 28 3562 83 103 111 138
150 172 186 231
243 326 406 439 546 590 679 734
794 913 987 1135 1227 1526
Max. continuous torqueN.m5141725
Max. Continuous output powerW63030010040
Max. continuous input speedrpm6000700070007000
Max. efficiency%90807565
Max. back gap°
Motor gear hole (ID)mmΦ5 Φ6Φ5 Φ6Φ3 Φ5 Φ6Φ3 Φ5 Φ6
Gearbox length Lmm36.154.963.672.4