With nearly 70% of Earth’s surface covered in water, demand for subsea technologies is rapidly growing—expected to surpass $10 billion by the 2030s. From manned submersibles to ROVs and UUVs, all these systems require smooth, reliable motion. ThinGap’s high-efficiency, zero-cogging slotless motor kits are engineered to meet those demands.
ThinGap’s slotless brushless DC motors are increasingly being used in direct-drive underwater thrusters. Thanks to a high torque-to-diameter ratio, they eliminate the need for gearboxes—reducing complexity and failure points while saving weight. This makes them ideal for compact, high-reliability applications in both commercial and defense settings.
ThinGap’s LS Series motor kits are especially well-suited to these conditions. Their lightweight, ironless stator architecture enables passive cooling using ambient seawater, and the low drag design minimizes resistance in liquid environments. The ring-shaped geometry also allows for flexible propulsion configurations—either with an impeller integrated inside the rotor or a propeller mounted externally.
Backed by over two decades of engineering expertise, ThinGap’s LS and TG Series motor kits are already deployed in a variety of marine systems. With outer diameters ranging from 25 mm to 393 mm and customizable features to suit depth, material, and performance requirements, these motor kits can be tailored to meet the rigorous demands of underwater applications.