Product Description:

The MRT110A-3C-0052-NNNN is a frameless torque-motor component manufactured by Bosch Rexroth Indramat for the MRT Synchronous IndraDyn T Motors series. Supplied as the rotating element only, it mounts directly to the customer’s hub and works with a matching stator to create a torque-rich, low-speed drive. This arrangement is used in wafer handlers, rotary tables, and indexing mechanisms where tight position accuracy and zero transmission play are required. Because the rotor is integrated into the machine structure, the surrounding assembly determines the final bearing support, alignment, and thermal path.

As a Rotor Unit, the part contains the permanent-magnet assembly and mechanical carrier but does not include windings, so electrical losses are generated in the stator rather than in the rotor itself. Its electromagnetic interface is Three-Phase Synchronous, meaning the rotor locks to a three-phase rotating field and delivers steady torque when controlled by a digital drive. The internal bore of 52 mm allows shafts, cables, or pneumatic lines to pass through the center, which can simplify compact machine layouts. With a mass of 0.30 kg, the rotor adds very little inertia and supports fast acceleration in short-cycle motion systems. During operation, sound pressure remains below 75 dB(A), which helps limit acoustic output in enclosed production equipment.

The rotor uses frame size 110, giving it an outer diameter suited to medium-torque applications while still fitting compact installations. Its frame length of A keeps the axial profile short, which can help reduce overall machine height where space is limited. Because it is supplied in an Open (Kit Motor) format, it has no housing or bearing system, so the machine must provide structural support and protection. The protection rating is IP00, which means the rotor has no dedicated enclosure against dust or liquids. This format is typical for kit motors that are installed inside closed machine compartments.