Product Description:

The MDD090A-N-020-N2L-110PB0 is an AC synchronous servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. It is intended for use with digital drive controllers, where it converts electrical input from the stator into controlled rotary motion for positioning axes and coordinated machine functions. This type of motor is commonly used in automated lines and cells that depend on repeatable speed control and accurate positioning. Its synchronous design supports stable motion behavior when the axis must follow changing commands without losing feedback-based regulation.

This model develops a continuous standstill torque of 3.7 Nm, supplying steady holding force for static loads while remaining within its thermal limits. During motion, the rotor can reach a nominal speed of 2000 rpm, which suits moderate throughput requirements on servo-driven axes. Encoder data are returned through digital servo feedback, giving the controller position information for closed-loop regulation during acceleration, steady running, and stopping. Power and feedback conductors exit on Side B through a single connector, which keeps cable routing straightforward in compact machine layouts. Mechanical alignment is supported by a 110 mm centering diameter that helps seat the flange concentrically against the mounting surface and reduce runout at the coupling interface.

The motor uses a standard housing that encloses the laminated core and windings, and factory balancing is kept within normal tolerances to limit residual vibration at rated speed. It follows frame size 090 with A motor length, giving the unit a compact profile for this torque class without adding unnecessary bulk. An internal shaft seal protects the bearings from coolant splash and airborne contaminants during normal industrial use. Torque is transmitted through a keyway shaft on the drive side only, while the opposite end has no side B shaft extension. The motor is supplied without a blocking brake, so holding must be provided by drive torque or an external locking device when the axis is at rest.