16mm Slotless Brushless DC Motor

DINGS' Slotless Brushless DC Motor, 16ZWWC40 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.

16ZWWC40 Slotless Brushless DC Motor has high durability, low electrical noise and high efficiency.

Maximum efficiency of motor reaches 85% and this motor is suitable for the servo system which needs quick movement and high power.

16ZWWC40 Rated Power is 39W and Peak Torque is 118.13mN.m.

Slotless Brushless DC Motor images

Motor Characteristics

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Motor Part Number 16ZWWC40
General Informaiton
Dimension Motor Length mm 40 40 40 40
Mounting Hole mm φ16 φ16 φ16 φ16
Motor Shaft mm 6.8 6.8 6.8 6.8
Pole Pairs - 1 1 1 1
Phase Resistance Ω 0.63 1.31 1.85 3.15
Phase Inductance mH 0.033 0.045 0.096 0.2
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 47 47 47 47
Performance Parameters
Rated Voltage V 18 24 36 48
Rated Power W 33 39 39 39
Rated Torque mN·m 7.4 7.4 7.5 7.4
Rated Speed RPM 44000 51300 50000 50000
Rated Current A 2.19 1.96 1.32 0.95
No Load Speed RPM 50000 58000 56000 56000
No Load Current A 0.31 0.22 0.15 0.12
Motor Efficiency % 85 84 82.4 84.92
Noise (Ambient noise 20db, test distance 1M) dB <50 <50 <50 <50
Thermal Parameters
Enclosure - Ambient Thermal Resistance (No Load) K/W 1.22 1.33 1.47 1.07
Motor Thermal Time Constant (No Load) S 420 450 480 390
Ambient Temperature 22.3 22.3 22.3 22.3
Maximum Winding Temperature (No Load) 63 75 80 63.8
Motor Constant Coefficient
Torque Constant mN·m/A 3.38 3.78 5.66 7.75
Back-EMF Constant Peak Value V/Krpm 0.50 0.56 0.84 1.15
Effective Value V/Krpm 0.35 0.40 0.59 0.81
Calculated Value
Peak Torque mN·m 96.65 69.21 110.19 118.13
Peak Current A 29 18 19 15
Inertia Moment g·cm² 0.583 0.583 0.583 0.583
Mechanical Time Constant ms 3.21 5.35 3.36 3.06
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

16mm Slotless BLDC image