Product Description:

The MDD025A-N-100-N2G-040PF0 is a compact synchronous motor manufactured by Bosch Rexroth Indramat within the MDD Synchronous Motors series. Designed for pairing with digital drive controllers, the unit converts commanded current into precise shaft motion for small-scale positioning tasks in automated machinery. Its compact size supports use in tightly packed assemblies where a small servo axis must deliver accurate motion without adding much installation bulk.

This model delivers a continuous stall torque of 0.33 Nm, allowing stable low-speed holding without thermal overload. During operation, it can reach a nominal mechanical speed of 10000 rpm, which suits high-throughput servo axes that demand rapid acceleration. Rotor position is monitored through resolver feedback, supplying analog sine-cosine signals to the drive for closed-loop control under electrical noise. All power and signal conductors exit on the right side, so cable routing stays consistent when the motor is mounted in compact machine spaces. For quick installation, the motor ships with a connecting cable with a coupling unit; this premolded harness reduces wiring errors and helps maintain shielding continuity.

The front flange centers on a 40 mm pilot diameter, ensuring concentric mounting to gearheads or linear mechanisms. A radial lip seal is fitted, so the shaft uses a shaft seal to keep lubrication inside the housing and help protect the internal bearings from dust or coolant ingress. Torque is transmitted through a keyway shaft end, a common form that helps pulleys or couplings resist slip during reversals. Because the motor is supplied without a blocking brake, any power-off holding must come from the external drive or a separate mechanical restraint. This arrangement is useful on axes that already rely on self-locking transmissions or external holding devices.