Product Description:

Bosch Rexroth Indramat manufactures the MDD090B-N-020-N2M-130PR2 within its MDD Synchronous Motors series. This motor is intended for digital drive controllers, where it converts electrical input into controlled rotary motion for axes that require coordinated positioning and stable speed regulation in automated machinery. In closed-loop systems, it supports repeatable acceleration and deceleration on indexing and feed axes. The unit uses the 090 frame size with B length code and a standard housing that helps it fit common machine layouts. Standard rotor balancing reduces vibration at speed, and the sealed construction supports use in typical industrial environments without additional protective covers.

The mechanical interface includes a centering diameter of 130 mm, which provides an accurate reference surface for flange mounting. Power and feedback leads exit on the right side, and the motor uses a factory-installed connector for straightforward cable attachment. This cable orientation can keep the front mounting area clear in compact installations. At standstill, the motor can deliver 7.2 Nm of continuous torque. Position data are provided by an integrated multiturn absolute encoder, allowing the drive to retain axis position information after power loss. A shaft seal is fitted to help keep contaminants away from the bearings and limit lubricant migration.

For holding duties, the integrated blocking brake provides 11.0 Nm of torque to secure loads when the system is powered down. During motion, the rotor reaches a rated speed of 2000 rpm, and digital servo feedback (DSF) supplies the signal used by the drive controller for closed-loop control. The output shaft has a keyway so torque can be transmitted through keyed couplings, and the omitted side-B shaft end helps keep the motor shorter. The single-shaft layout can be useful where rear clearance is limited. This arrangement suits medium-inertia axes such as machining tables, pick-and-place modules, and general-purpose servo stations.