MDD025A-N-100-N2K-040FL1
The MDD025A-N-100-N2K-040FL1 is a compact synchronous motor manufactured by Bosch Rexroth Indramat for the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts commanded current into precise rotation for light-duty axes in pick-and-place, metering, and spindle systems. Its short housing and plain single-ended shaft allow direct coupling to pulleys or miniature gearheads without additional mechanical adapters. This operating profile suits compact indexing duties where responsive motion is needed in a limited installation space. It can also serve auxiliary axes that require repeatable movement without the bulk of a larger motor frame.
During continuous operation at standstill, the motor develops 0.33 Nm of torque, and it can reach a rated speed of 10000 rpm when released by the drive. All power and feedback lines exit on the left side through a factory-installed connector that aligns with the cable set. Accurate centering against the machine plate is provided by a 40 mm pilot diameter, while size code 025 indicates the external stator envelope used for this motor. The standard cast housing transfers heat to the mounting face, and the unit uses a single plug-style connector for electrical connection. Heat is removed through the mounted structure rather than by external forced airflow, which helps keep the package compact. It is supplied without a shaft seal, so the installation area should be kept free from cutting fluids, and the shaft does not include a side-B extension.
A blocking brake is integrated and supplies 1.0 Nm of static holding torque when power is removed. Rotor balance is standard, which helps keep vibration suitable for a small servomotor. Position data are provided by an integrated absolute encoder, and the secondary channel uses resolver feedback for commutation and coarse velocity signals. This feedback arrangement gives the drive both rotor position information and the signals needed for controlled motor operation across the speed range. Because there is no shaft seal, the plain shaft should be paired with a protected bearing arrangement in clean operating areas.
