Axial Flux Power: Orbis Packs V8 Muscle Into 12 Pounds

Orbis Electric has officially launched HaloDrive, its next-generation in-wheel motor that delivers V8-level torque inside a single wheel — without the bulk of a traditional drivetrain.

At the heart of HaloDrive is a compact axial-flux “pancake” motor, where rotors and stators are stacked like layered discs. This design places magnetic force closer to the outer diameter, increasing leverage and torque density. But that’s only half the story. HaloDrive integrates quiet internal planetary gears, multiplying torque between 2.5:1 and 5.25:1, all packaged in the space normally occupied by a CV joint.

The result? A torque density of 33.5 lb-ft per pound of motor mass. Just 12 pounds of motor can match the torque of a GM 5.3-liter V8 — and you can install one in each wheel.

The big breakthrough is cooling. Instead of complex glycol systems requiring precision-machined metal stators, Orbis switched to oil cooling, enabling a molded plastic stator that reduces weight and manufacturing costs. The rotor itself circulates oil internally, eliminating the need for external coolant lines and simplifying EV conversions for existing two-wheel-drive vehicles.

Orbis claims up to 35% drivetrain cost reduction versus radial-flux motors, lower rare-earth material usage, and 97% operational efficiency. The company is now targeting OEMs, Tier 1 suppliers, fleets, and industrial customers — including semi-trailers where HaloDrive can power electric transport refrigeration units at dramatically reduced cost.

If this technology scales, in-wheel motors might finally deliver on their long-promised potential: lighter, simpler, more powerful electric vehicles.

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Видео Axial Flux Power: Orbis Packs V8 Muscle Into 12 Pounds канала Xenon Lab | Science & Technology