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ThinGap’s patented method for distributing motor phase coil wires within a very thin cross section eliminates traditional magnetic stator teeth, resulting in a motor without cogging torque. Cogging is an unwanted magnetic torque disturbance caused by the winding patterns around stator’s iron teeth that are the basis of “slotted” motors. This is paired with near zero torque ripple when paired with a sinusoidal driver, due to the motor kits having good phase balance (~1° electrical error), and a back EMF total harmonic distortion of < 1% (0.25% is typical). making the ThinGap motor kits yield some of the smoothest motion available.

The TG series of motor kit uses a completely ironless stator, which does not have radial forces in the motor kit during operation due to the lack of ferrous material in the stator. This makes balancing the motor assembly significantly easier compared to an average motor kit. This is combined with the absence of hysteretic drag in the kit during operation makes for a motor kit which can fit a variety of applications, from air bearing assemblies to haptics.

A benefit of a slotless stator; the motor kit does not saturate during operation. This means that the motor kit is essential a static torque converter, taking any input current and outputting a torque based on the provided torque constant. The only limiting factor on how much torque a motor kit can produce is the heat generated during operation.

Since the company’s founding in 1999, ThinGap has consistently invested in creating proprietary design tools to be able to rapidly design custom kits to meet customer needs. Using over 20 years of investment into these tools, ThinGap is capable of designing motor kits in 1-3 days which will land within ±10% of the final parameters. This certainty in the design and construction means that most custom designs generally only take between 16-20 weeks from design to the first units being shipped.