MDD025A-N-100-N2G-040FA0
The MDD025A-N-100-N2G-040FA0 is a compact synchronous motor from the MDD Synchronous Motors series manufactured by Bosch Rexroth Indramat. It is intended for digital drive controllers and converts controlled current from a servo amplifier into precise rotary motion. This arrangement suits small actuators, pick-and-place heads, and auxiliary spindles in automated equipment where accurate rotary motion is required.
This model delivers a continuous standstill torque of 0.33 Nm, giving low-inertia axes enough holding power for fine positional work. Its nominal speed reaches 10000 rpm, which supports rapid indexing when paired with high-resolution control loops. Accurate mechanical alignment is aided by a centering diameter of 40 mm, allowing the motor flange to locate squarely on a machine panel. Electrical and feedback conductors exit on side A, which simplifies cable routing in cramped assemblies. Position data is returned through resolver feedback, providing an analog angular signal that withstands electrical noise better than incremental encoders in high-speed applications. Standard dynamic balancing minimizes vibration, and the power interface uses a connector for a compact electrical connection.
The unit is specified without a blocking brake, so an external locking device is required if the load must remain stationary when power is removed. A plain shaft end allows direct coupling with miniature gearboxes or pulleys, and the motor’s frame size code of 025 keeps the envelope small for clustered multi-axis systems. Because it is supplied without a shaft seal, the installation area should be free of liquids or abrasive dust that could migrate along the shaft into the bearing cavity. The housing and shaft-end options are standard, and length code A denotes the shortest stack offered in this family, helping reduce total mass on moving carriages.
