The TDB-112-065-NH-A direct-drive motor is structurally composed of four main parts: the stator (stationary part), the rotor (rotating part), the bearings, and the encoder (a sensor used to detect rotational position). The motor has a diameter of 112 mm, a height of 65 mm, and a weight of 2.8 kg. It delivers a continuous torque of 3 N·m and a peak torque of up to 9 N·m, with a rated power of 110 W, a continuous current of 2.5 Arms, and a peak current of 7.5 Arms. Its key features include high dynamic performance, high precision, optimal speed control, ultra-compact structure, excellent MTBF, and reduced maintenance requirements.

The internal rotor frameless torque motor is a specialized type of permanent magnet synchronous motor (PMSM) composed of two core components: the rotor and stator. The rotor is internally positioned, while the stator is externally mounted. Its innovative design eliminates traditional motor housings, bearings, and shafts, retaining only the rotor and stator assemblies. The rotor typically adopts a ring-shaped structure integrated with permanent magnets, directly mounted on the load shaft. The stator consists of copper windings and laminations, generating electromagnetic forces to drive rotor rotation. This configuration achieves torque output through efficient magnetic field interaction, making it ideal for high-precision applications such as robotic joints and industrial automation. It enables direct load driving, minimizing mechanical transmission losses.