Product Description:

The MDD025B-N-100-N2K-040PA0 is a compact AC synchronous motor from Bosch Rexroth Indramat that belongs to the MDD Synchronous Motors series. Intended for operation with digital drive controllers, the unit converts commanded current into precise torque and speed for light automation axes such as pick-and-place modules, miniature positioning slides, or high-speed auxiliary spindles on production equipment. Its compact format is useful where limited installation space and low moving mass are important for fast, accurate motion. It is also well suited to machine sections where a small motor envelope helps keep surrounding assemblies compact.

At standstill, the motor can supply 0.60 Nm of continuous torque without exceeding thermal limits under rated conditions. During motion, it reaches a nominal speed of 10000 rpm, which supports short cycle times in low-inertia mechanisms. A centering diameter of 40 mm registers the flange concentrically against the machine frame to help control radial runout. Cabling is routed on Side A, which can simplify harness layout when the rear of the motor faces a panel or enclosure wall. Rotor position is transmitted through resolver feedback, providing sinusoidal signals for closed-loop control. This combination suits small servo axes that need rapid response and stable motion over a wide speed range.

The power and feedback conductors terminate in a keyed connector, allowing the motor to be disconnected without removing fixed conduit hardware. An integrated absolute encoder retains multi-turn position after power loss, which can eliminate a homing move at startup. A factory-installed shaft seal helps block lubricant migration and airborne contaminants from the bearing cavity. The output shaft uses a keyway for positive torque transfer, and there is no side-B shaft extension. The motor carries size code 025 with length variant B, uses standard balancing and housing execution, and is supplied without a blocking brake, so any holding function must be provided by the driven machine or the connected drive.