MDD041B-N-100-N2K-050MA1
The MDD041B-N-100-N2K-050MA1 is a synchronous servo motor produced by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. Intended for use with digital drive controllers, the unit converts command currents into precise rotary motion for indexing tables, pick-and-place axes, and other automated machinery. In industrial automation, it supplies regulated torque and speed while returning position data to the control loop for accurate axis response. This motor type is commonly used where the drive must hold a commanded position, change speed quickly, and maintain smooth motion under varying load conditions.
During installation, the motor centers on a 50 mm pilot, and its power and feedback connectors exit on side A, which suits compact machine layouts. The interface uses a sealed connector for both phases and sensing, which reduces the number of external wiring points. Keeping power and feedback connections in the same general exit direction also helps simplify routing in tightly packed machine spaces. At standstill, the motor provides 1.35 Nm of continuous torque without exceeding thermal limits, and the rotor can reach 10,000 rpm for high-speed positioning tasks. Closed-loop accuracy comes from resolver feedback working with an integrated absolute encoder, so the controller receives both incremental and multi-turn position information. The combined feedback arrangement lets the drive monitor shaft angle during motion and retain position reference after shutdown. The size 041 frame and B-length stack balance inertia and heat dissipation, while the standard housing supports convection cooling inside typical machine enclosures.
For static holding on vertical axes, a blocking brake holds the shaft with 1.2 Nm of torque after supply power is removed. The motor keeps a narrow profile because the active section fits within the 041 frame, uses standard balancing and a standard housing, and has a shaft end only on the drive side. That single shaft end is machined with a keyway, allowing positive-locking couplings without additional machining. This output arrangement suits couplings that need secure torque transfer during repeated starts and stops. Because the model is supplied without a shaft seal, the front bearing area should be protected from coolant splash or abrasive dust.
