Linear Labs Launches a New Electric Motor Aimed at Micromobility

The newest version of Linear Labs' patented Hunstable Electric Turbine (HET) motor is intended to compete with the industry's top e-scooters. See how the micromobility motor stacks up.

Smart electric motor maker Linear Labs has launched the newest iteration of its patented high-torque Hunstable Electric Turbine (HET) motor—this one created specifically for micromobility uses, such as e-scooters.

Fort Worth-based Linear Labs is known for its products and IP portfolio of patents, specifically the revolutionary HET motor. The company aims to welcome a “new era of smarter energy utilization” with its groundbreaking electric motor and generator products.

According to Linear Labs, the new HET motor provided 123 percent more torque when tested than its industry-standard competitor, the Segway Ninebot ES4 motor.

Linear Labs’ founder and CEO Brad Hunstable said the expanding micromobility space, which includes short distance transportation like shared scooters and bikes, is going to benefit from the HET motor’s developments in ways that aren’t feasible yet. When it comes to overall efficiency and customer satisfaction, the motor’s improvements intend to provide longer range and more power to climb steep grades.

“Micromobility is the second phase of our production plan, which began with electric car propulsion and will soon be available to the HVAC and industrial industries,” Hunstable said. “We are now able to offer superior torque for yet another industry. The implications are staggering.”

Linear Labs has previously said it will provide a license to the HET motor’s patented technology.

In March, the company closed a $4.5 million seed round in support of the HET motor. At the time, the funding was designated for marketing the HET motor across multiple industries (including micromobility): electric vehicle, robotics, wind turbine, and HVAC.

Then, in April, Linear Labs announced a partnership with Abtery, a Nordic startup that develops cleantech systems in electro-mobility. The move allowed Abtery to offer the electric motor at the heart of its transportation solutions.

The HET has been called an entirely new class of motor. In comparison to the top permanent magnet motor on the market, the HET produces two times the torque density, three times the power density, two times the output per motor size, and a minimum 10 percent more range.


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Torque, which is measured in Newton meters (Nm), refers to the twisting force that causes rotation. Linear Labs said the HET motor tests produced a peak torque of 38 Nm, which is more than double a Segway’s peak torque of 17Nm.

The company credited the strong test results in part to the HET motor’s design. As a 3D Circumferential-Flux Four-Rotor Permanent Magnet motor, the HET uses multiple rotors that can adapt to different conditions while in motion.

Magnetic flux from the rotors encircle the stators (stationary portions of an electric motor) to prevent rotor flux leakage. This makes for an “almost perfect” flux linkage, which Linear Labs says produces a maximum torque.

While Linear Labs’ recent announcement focused on e-scooter comparisons, the HET motor is scalable for other micromobility uses, like e-bicycles and mopeds. 

Alex Edwards contributed to this report.

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