Product Description:

The MDD025A-N-100-N2K-040FR1 is a small synchronous servo motor built by Bosch Rexroth Indramat and supplied within the MDD Synchronous Motors series. As a motor for digital drive controllers, it converts commanded current into precise torque and speed for compact pick-and-place axes, feeders, or test rigs. Its integrated mechanical and feedback options allow closed-loop control without external sensors, and it directs rotary motion to light loads that require rapid acceleration and high positional repeatability in industrial automation cells.

At standstill, the motor can deliver 0.33 Nm of continuous torque, enough to hold fixtures or index lightweight tooling without overheating. When energized by the matched drive, the rotor can reach a nominal speed of 10000 min⁻¹, so cycle times remain short even on small-diameter tooling. A blocking brake integrated at the non-drive end supplies 1.0 Nm of holding torque to secure vertical or unpowered axes. Position and velocity loops are closed through resolver windings that provide resolver feedback, while a secondary track inside the housing provides an integrated absolute encoder for single-turn position capture. Standard dynamic balancing limits vibration, and the short A length code coupled with the 025 frame keeps mass and inertia low for fast starts and stops.

Mechanical integration is simplified by a centering pilot of 40 mm and by mounting ports that match the standard housing pattern. Power and signal leads exit on the machine's right side, and a keyed connector on that face handles both motor phases and feedback conductors. The shaft is a plain shaft, so it mates directly with miniature couplings, and a second shaft end is not provided. Because the unit is supplied without a shaft seal, installation is intended inside protected enclosures rather than in washdown areas. The motor size 025, standard housing, and standard balancing class allow direct coupling to precision gearheads or belt pulleys while keeping radial loading within bearing limits.