This unhoused arc-segmented frameless brushless torque motor with low-inertia moving coil assembly has been developed for high angular acceleration applications. The rotary three-phase brushless motor (TWR-070-410-1150-3PH), also known as a rotary servo motor, is a direct-drive motor that is suitable for limited or unlimited, closed-loop servo, rotary motion applications. It can generate a continuous/peak torque of 480 in-lb (53 Nm)/1,440 in-lb (159 Nm). It has been designed to have a 70° rotation and operates on a 20-in (500-mm) radius, but additional modular magnet tracks (33° each) can be added to increase angular displacement.