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13mm Slotless Brushless DC Motor for Precision Instruments

Modar'sSlotlessBrushlessDCMotorscanavoidthepulsationofairgapmagneticinductioncausedby unevenmagnetic resistance in the teeth.
It can eliminate the pulse loss in the armature core and the surface loss on the main pole surface.
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.

  • 13ZWWC37

  • Modar Motor

  • 13mm

  • 11W

  • 2.7mN.m

  • 24V

  • 100% pure copper

  • 2

  • about 30 days

Availability:

13mm Slotless Brushless DC Motor – Product Overview


The 13mm slotless brushless DC motor is engineered for ultra-compact systems where smooth rotation, low electromagnetic noise, and precise controllability are critical.
With a slotless stator design, 13mm slotless brushless DC motor eliminates cogging torque entirely, enabling stable speed control at low RPM while maintaining high efficiency in continuous operation.

13mm slotless brushless DC motor is widely adopted in precision instruments, portable devices, and miniature automation mechanisms, especially where installation space is extremely limited but motion quality cannot be compromised.


全系列组合图1


Key Features

  • Slotless stator design with zero cogging torque

  • Ultra-compact 13mm frame for high-density assemblies

  • Low vibration and acoustic noise

  • High efficiency at low and medium speeds

  • Flexible winding and voltage customization

  • OEM-ready rotor and stator integration








Typical Applications of 13mm Slotless Brushless DC Motor


13mm slotless brushless DC motor is optimized for miniaturized precision systems requiring smooth and stable motion under tight spatial constraints.


Common application scenarios include:

  • Precision optical adjustment mechanisms

  • Compact laboratory instruments

  • Micro fluid control actuators

  • Handheld medical and diagnostic devices

  • Miniature automation modules


Application Highlights

  • Smooth low-speed rotation for fine positioning

  • Minimal electromagnetic interference near sensors

  • High reliability in continuous or intermittent operation

  • Ideal for battery-powered precision devices







Technical Specifications of 13mm Slotless Brushless DC Motor


The following technical data applies to the 13mm slotless brushless DC motor.

Electrical Parameters

  • Rated voltage options: 24V etc.

  • Rated speed: 43500rpm(customized)

  • Rated Torque: 2.7mN.m(customized)

  • Output power: 11W(customized)

Optional Configurations

  • Hall sensors or encoder feedback

  • Customized shaft or connector types

  • Cable or terminal variations


Slotless motor.pdf

     

Motor Characteristics
Motor part number 13ZWWC37
Pole pairs -
Terminal resistance, Phase-Phase 3.65 
Terminal inductance, Phase-Phase mH 0.113 
Winding connection method - Delta connection
Insulation class - B
Duty type - S2
Feedback method - Hall sensor
Commutation angle - 120°
Insulation strength (Withstand voltage) - 300VAC/1KHz/1mA/1s
Insulation resistance - 100MΩ/300VDC
Weight g 28.6 
Rated voltage V 24 
Rated power W 11 
Rated torque mN·m 2.7 
Rated speed RPM 43500 
Rated current A 0.66 
No load speed RPM 46800 
No load current A 0.086 
Motor efficiency % 69 
Noise
(Ambient noise 20dB, test distance 1m)
dB <50
Thermal Resistance (No-load) K/W 3.70 
Ambient temperature 22.3 
Max winding temperature 63 
Torque constant mN·m/A 4.06 
Back-EMF constant - peak value V/Krpm 0.6 
Back-EMF constant - effective value V/Krpm 0.43 
Peak torque mN·m 26.73 
Peak current A
Rotor inertia g·cm² 0.14 
Mechanical time constant ms 3.09 
End bell - Stainless steel
Bearing - Deep groove ball bearing
Magnet - Sinter NdFeB
Rotation shaft - Carbon steel


Dimension Drawing of 13mm slotless brushless motor 13ZWWC37
13mm slotless brushless dc motor drawing
Performance Curve of 13mm slotless brushless motor 13ZWWC37
13mm slotless brushless dc motor performance curve



FAQ –13mm Slotless Brushless DC Motor


Q1: Is 13mm slotless brushless DC motor suitable for very low-speed precision control?

Yes. The slotless structure provides zero cogging torque, enabling smooth low-speed operation.


Q2: Can 13mm slotless brushless DC motor be used in medical or laboratory equipment?

Yes. Its low noise and smooth motion make it ideal for sensitive devices.


Q3: Does 13mm slotless brushless DC motor include a gearbox?

No. 13mm slotless brushless DC motor is supplied as a standalone motor and can be paired with external gearboxes if required.


Q4: Can voltage and winding be customized?

Yes. Electrical parameters can be tailored for your application.


Q5: Is encoder feedback supported?

Yes. 13mm slotless brushless DC motor supports integration with external encoders.


Q6: Is 13mm slotless brushless DC motor suitable for OEM mass production?

Absolutely. 13mm slotless brushless DC motor is designed specifically for long-term OEM supply projects.



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