MDD025A-N-100-N2G-040MB1
The MDD025A-N-100-N2G-040MB1 is a synchronous motor for digital drive controllers manufactured by Bosch Rexroth Indramat and supplied through the MDD Synchronous Motors series. It is intended for high-speed positioning duties in compact machinery, where drive amplifier output is converted into precise mechanical rotation for gearheads or direct-drive axes. This type of motor is typically paired with a compatible digital controller that manages speed and position during operation. The compact frame suits small indexing units, feeders, and other mechanisms that require rapid response in limited space. The motor follows the series’ standard housing and balancing format, which helps it fit compact automation layouts that use MDD mounting conventions.
At stall, the rotor delivers 0.33 Nm of continuous torque without additional cooling. The rated operating point reaches 10000 rpm, allowing short cycle times in light pick-and-place units or spindle stages. An integrated blocking brake can clamp the shaft with 1.0 Nm of torque when power is removed, helping prevent axis drift on axes that must remain in position. Accurate mechanical centering is aided by a 40 mm centering diameter that aligns the motor with the machine interface. Power, brake, and feedback conductors exit on side B through a single connector, which keeps cable routing concentrated on one face of the machine. This arrangement is useful where nearby components leave only a narrow path for wiring.
The motor uses size code 025 and length code A, giving it a short body for close-coupled actuators where installation depth is limited. Its resolver feedback supplies analog sine-cosine signals for drive-side commutation and position control, supporting stable motion across the speed range. Resolver-based feedback is commonly used where durable analog position sensing is preferred in a compact servo package. A shaft with a keyway transmits torque directly to couplings and helps resist slip under brake load. The motor is supplied without a shaft seal, so it is best suited for enclosed locations where liquid ingress is not expected.
