MDD025A-N-100-N2G-040FB0
The MDD025A-N-100-N2G-040FB0 is a compact synchronous motor produced by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Designed for digital drive controllers, it converts command signals into precisely controlled torque and speed for small positioning axes or tooling spindles in automated machinery. Its housing and balancing are both standard, allowing straightforward integration into existing mechanical frames while maintaining the vibration behavior expected in industrial automation. Its compact format also suits tightly spaced machine sections where available installation space is limited. This makes it easier to place near slides, rotary tables, or compact spindle heads that leave little room for oversized motors.
Performance is built around a nominal speed of 10000 rpm, enabling fast cycle times when paired with high-frequency servo amplifiers. At standstill, it can deliver a continuous torque of 0.33 Nm, which is suitable for light clamping or indexing tasks without overheating. The frame follows size code 025 and length code A, so the stator stack remains short for low-mass installations. Power and feedback cables exit on Side B, and the motor-side interface uses a single Connector that simplifies panel wiring. A plain shaft without a side-B extension mates directly to couplings or pulleys, and this layout is useful where quick acceleration matters more than high load inertia.
Mechanical mounting is centered by a 40 mm pilot diameter, which locates the motor concentrically on gearheads or adapter plates. Position data is generated by a resolver feedback unit, giving sinusoidal voltage signals that remain usable across broad temperature ranges. The motor is supplied without a blocking brake, so any holding force must be provided by the drive or external mechanics. It is also shipped without a shaft seal, making it better suited to clean, dry environments where added sealing is unnecessary. The resolver signal also supports stable commutation and speed feedback during normal servo operation. Because the feedback device is integrated, the drive can monitor rotor position without adding a separate external sensor package.
