Product Description:

The MDD025A-N-100-N2G-040ME0 servo unit is a permanent-magnet synchronous motor manufactured by Bosch Rexroth Indramat and assigned to the MDD Synchronous Motors series. Classified as a motor for digital drive controllers, it is intended for compact axes where high rotational speed and precise feedback are required. By coupling directly to the load, the motor delivers controlled torque for pick-and-place devices, small indexing tables, and other light-duty motion modules used in automated assembly and electronics production lines. The motor format is suited to installations where limited mounting space and fast response are more important than high continuous torque.

Its nominal operating speed of 10,000 rpm allows rapid cycle execution while preserving synchronization with drive frequency. Under continuous stall conditions, the motor produces 0.33 Nm of torque, which suits low-inertia mechanisms that still need repeatable holding force. Mechanical alignment is guided by a 40 mm centering diameter that fits standard frame adapters and helps keep runout low. Rotor position is reported through resolver feedback, giving analog angular data that the controller converts into precise velocity and position loops. Power is transmitted through a keyway shaft, allowing direct connection to pulleys or couplings without adhesive locking methods.

Electrical terminations are placed on the left side of the stator housing and are prewired through a connecting cable with a coupling unit, which simplifies cable routing in compact machines. The design is delivered without a blocking brake, so external load-holding devices or drive torque must secure the axis during power-off conditions. There is no shaft seal, so the motor is best suited to clean, dry environments where contaminants are controlled. That arrangement is common in enclosed equipment where the motor is protected from coolant spray and airborne debris. The motor uses a compact housing with size 025 and length code A, ending in a standard single-ended shaft. The standard aluminum housing supports conduction cooling and helps keep the package small for densely arranged motion axes.