Product Description:

The MDD090B-N-020-N2M-130GR1 is a synchronous servo motor manufactured by Bosch Rexroth Indramat and part of the MDD Synchronous Motors series. It is designed for connection to digital drive controllers and converts three-phase electrical input into controlled rotary motion for indexing tables, pick-and-place arms, and other precision axes. Permanent magnets in the rotor provide stable magnetic flux, while electronic commutation from the drive supports quick reversal and dynamic torque response during automated operation. This operating principle helps the motor respond quickly to changing load commands while maintaining repeatable positioning. The compact 090 frame also helps the motor fit into machine layouts where installation space is limited.

A centering diameter of 130 mm gives the housing a stable pilot fit on surrounding flanges. Power and feedback leads exit on the right side through a keyed connector, which helps route cables toward the drive. At standstill, the rotor can supply 7.2 Nm continuously, and angular position is captured by an integrated multiturn absolute encoder so the drive retains position data after power is cycled. A blocking brake rated for 6.5 Nm holds the axis when parked. The motor uses digital servo feedback (DSF) for closed-loop control and accurate position tracking.

The motor reaches a speed of 2000 rpm, which matches the thermal capability of the 090 frame and B length. The output end uses a plain shaft without a secondary extension, which helps keep rotational inertia low during rapid starts and stops. A shaft seal is installed at the front bearing to block coolant spray and fine particulates. The sealed bearing area also helps protect lubricant retention during operation in enclosed tooling spaces. This layout is well suited to vertical axes and other compact machine sections that require dependable holding behavior.