Lin Engineering
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SL013CH026 Series
Slotless BLDC Motor

Features and Benefits:
  • Extremely quick response and high acceleration
  • Quiet Operation
  • High power density
  • Wide speed range (up to 40,000 rpm)


Model #Frame sizeNominal VoltageNo Load SpeedNo Load CurrentMax speedRated CurrentSpeed Torque GradientRated TorqueWeight, lbsAvailability
SL013CH026-010.510 in6 VDC24900 RPM130 mA40000 RPM1.27 A400.1953 RPM/oz-in0.3654 oz-in0.042 lbsonline
SL013CH026-020.510 in9 VDC27600 RPM115 mA40000 RPM1.02 A329.3893 RPM/oz-in0.3979 oz-in0.042 lbsonline
SL013CH026-030.510 in12 VDC24600 RPM76 mA40000 RPM0.65 A357.7117 RPM/oz-in0.3809 oz-in0.042 lbsonline
SL013CH026-040.510 in18 VDC25100 RPM54 mA40000 RPM0.44 A369.3239 RPM/oz-in0.371 oz-in0.042 lbsonline
SL013CH026-050.510 in24 VDC26100 RPM49 mA40000 RPM0.34 A380.228 RPM/oz-in0.3583 oz-in0.042 lbsonline

Motor Operating Specifications

Axial play0.002 in
Radial playPreloaded
Max. force for press fits (static)2.248 lbf
Ambient Temperature-40 ° to 212.00 °F
Max winding temperature311.00 °F
Thermal resistance (Housing-Ambient)89.60 °F/W
Thermal resistance (Winding-Housing)38.64 °F/W
Thermal time constant motor250 s
Thermal time constant winding0.58 s
Number of pole pairs1


ModelDIM. A (length) in
SL013CH026-010.990 in
SL013CH026-020.990 in
SL013CH026-030.990 in
SL013CH026-040.990 in
SL013CH026-050.990 in

Torque Curves

Slotless chart
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Slotless chart
Slotless chart

Features And Benefits

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A typical brushless BLDC motor is constructed using a stator with “slots”; a copper wire is then wound around these slots. Although this technology works well, it has an inherent problem with cogging (or drag torque), which presents a challenge in applications needing fast response, fast acceleration and smooth operation.


To combat these issues, we’ve removed the slots from the motor. Instead of slots, we’re using a unique process of winding the copper wire without the need of them. This drastically reduces cogging and improves the motor’s ability to respond, accelerate quickly, and operate smoothly. Slotless BLDC motors are also quieter and provide more power with a smaller frame size than their slotted counterparts.

Reliable long life expectancy

Our motors are built to withstand at least 20,000 hours of continuous (24/7) operation. This means that you can feel confident that even your most sensitive application will operate reliably for a very long time.


Nearly silent operation

Detent torque is the biggest culprit of generated noise. Removing the slots and thus eliminating the detent torque drastically reduces the noise output of the motor.


Modular design for better customization

The modular design lets us combine the motor with a gearhead to match your specific speed and torque requirements. Also, our slotless BLDC motors are available in many windings so we can satisfy your requirements precisely. You can also customize the motor with sensors such as an optical encoder or hall sensor to provide accurate positioning control, velocity, and direction feedback.


Cost effective

Our unique manufacturing process lets us create motors that are built to your exact specifications, while remaining highly cost effective. Get exactly what you need without breaking your budget.

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Slotless BLDC Motor Applications


  • Robotic grippers and claws
  • Medical and surgical tools
  • Miniature pumps and ventilators
  • Testing and measuring equipment
  • Semiconductor handling equipment
  • Robotics
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Slotless BLDC Motor Construction

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SL013CH026-3D-Model (STEP)

Get the motor you need

Just fill out a Request for a Quote form, and tell us about your application and your needs. One of our applications specialists will review your request, and provide you with a quote promptly.