MDD025B-N-100-N2K-040FD0
The MDD025B-N-100-N2K-040FD0 is a synchronous servo motor produced by Bosch Rexroth Indramat within the MDD Synchronous Motors series. It is intended for direct connection to digital drive controllers, where it converts electrical input into precise rotary motion for compact automation modules such as small gantries, feeders, or labeling stations. The motor’s size code 025 and length designation B keep the footprint small, which helps it fit into lightweight mechanical assemblies and tightly packed machine layouts. Its compact format makes it suitable for axes that need accurate motion without adding unnecessary bulk. This makes it a practical choice for small indexing and transfer motions where response, repeatability, and limited installation space all matter.
With a continuous standstill torque of 0.60 Nm, the unit can hold or slowly index loads without overheating when ventilation is limited. Its rated operating speed reaches 10,000 rpm, allowing short cycle times in high-throughput applications while remaining within the motor’s thermal range. The centering collar is machined to 40 mm, providing a repeatable seating reference for couplings or pulleys. Power and feedback cables exit on side B, and the motor uses a connecting cable with coupling unit for the interface. Rotor position is reported through resolver feedback, allowing the drive to calculate velocity and rotor angle during rapid reversals. This feedback method also supports stable commutation and speed control across a wide operating range.
The motor operates without a blocking brake, so any holding function must be supplied by the drive or by external clamping hardware. A plain shaft provides a smooth output surface for precision couplings and similar transmission elements. An integrated absolute encoder supplies position data immediately after power is restored, which reduces the need for a homing routine at startup. The absence of a brake also helps reduce rotating mass, which supports quick acceleration and deceleration in compact motion profiles. Standard balancing and the compact housing support stable running in small belt-driven or geared axis systems.
