Product Description:

The MDD025C-N-100-N2G-040MR1 is a synchronous servo unit from the MDD Synchronous Motors series produced by Bosch Rexroth Indramat. As a motor for digital drive controllers, it converts commanded current into precise rotary motion for compact positioning axes and spindle drives in automated machinery. The compact frame suits installations where available space is limited but accurate speed and position control are still required. In servo applications, the motor works with the drive to regulate torque during acceleration, speed changes, and short positioning moves. This operating role makes it suitable for compact machine sections where repeatable motion is more important than large frame size.

This model uses a standard dynamic centering diameter of 40 mm to position the flange accurately, and the standard balancing grade helps keep vibration low at elevated speed. Power and feedback conductors exit on the right side through a keyed connector, which helps route cables cleanly in tight enclosures and prevents incorrect mating. At standstill, the motor produces 0.90 Nm of continuous torque, and it can accelerate to a nominal speed of 10000 rpm for rapid-cycle duties. The housing uses the standard design without optional cooling fins, and length code C indicates a longer stator stack within the 025 frame. This layout leaves room around the motor body for nearby machine components and keeps the connection area easy to access.

A blocking brake rated at 1.0 Nm holds the shaft when power is removed, which helps prevent drift on vertical or indexing axes. Position feedback is generated by resolver feedback, providing rotor angle signals that remain stable in electrically noisy environments. The size code 025 identifies a compact motor body, and the single shaft end is machined with a keyway for use with standard couplings. That arrangement supports straightforward coupling to pulleys, gears, or small transmission elements used on compact axes. The shaft is supplied without a shaft seal, so no lip seal adds friction or axial load. It also uses the standard single-ended shaft arrangement, so there is no secondary side-B extension.