Product Description:

The MDD025A-N-100-N2K-040MD0 is a compact synchronous servo motor produced by Bosch Rexroth Indramat and belongs to the MDD Synchronous Motors series. Designed to work with digital drive controllers, it converts regulated three-phase current into controlled rotary motion for automation axes that demand fast positioning. The motor is used in electronic component feeders, miniature spindle assemblies, and multi-axis pick-and-place gantries where limited space and repeatable dynamics are important. Because it is built for digitally controlled motion, it can respond quickly to command changes during short start-stop cycles and small-position corrections. A standardized mechanical envelope lets it share mounting patterns with other motors in the series, which helps when several axes are arranged closely on compact machinery.

Its mechanical interface begins with a centering seat of 40 mm, providing accurate concentric alignment to gearboxes or mounting flanges. When energized, the rotor delivers 0.33 Nm of continuous standstill torque, allowing low-mass loads to be held without excess heating in the A-length stator. A rated speed of 10000 rpm supports high cycle frequencies for indexing duties. Power and feedback leads exit on side B, and the factory-supplied connecting cable with a coupling unit simplifies plug-in installation in tight spaces. This arrangement helps keep cable routing orderly where multiple compact axes are mounted side by side. Standard dynamic balancing limits transmitted vibration, and the normal-profile housing remains compatible with the 025 frame size.

For vertical or safety-critical axes, the motor is supplied without a blocking brake, so external holding mechanisms are required when power is removed. Position data is provided by an integrated absolute encoder and transmitted through resolver feedback. The single shaft uses a keyway on the drive end, while the opposite end is closed and the motor has no shaft seal. That arrangement is better suited to clean, dry enclosures where contaminants are controlled, and it is less suited to washdown or debris-heavy areas. The short A-length layout also helps the motor fit into densely packed multi-axis assemblies.