Product Description:

The MDD090B-N-020-N2M-130GA1 is a synchronous servo motor produced by Bosch Rexroth Indramat and supplied within the MDD Synchronous Motors series. Designed for digital drive controllers, it provides closed-loop torque and velocity control in automated machining centers, packaging equipment, and material transfer systems where repeatable motion profiles are required. Its synchronous design allows the paired controller to regulate acceleration and settling behavior with predictable response during repeated positioning cycles. The unit has motor length code B, which corresponds to the stack height used for this housing size and helps determine the motor's overall length.

This model delivers a nominal speed of 2000 rpm, allowing the drive to match rotor speed to machine cycle demands. When the shaft is energized but stationary, it can supply 7.2 Nm of continuous torque so tables or carriages remain supported without drift. The integrated blocking brake provides static holding capacity and resists up to 6.5 Nm when power is removed, which helps keep vertical axes from backdriving. Feedback on absolute position is provided by an integrated multiturn absolute encoder, so the controller can track revolutions across power cycles without a homing routine. Power and signal leads exit on side A, which can simplify cable routing when that face is oriented toward cable trays.

The motor uses a centering diameter of 130 mm, which aligns the housing with matching flanges and helps minimize radial runout. Position data is transmitted through digital servo feedback (DSF), enabling high-resolution commutation at each control interval and stable closed-loop operation. This arrangement supports accurate shaft alignment at the machine interface and helps keep feedback quality consistent during reversing motion and low-speed holding. A plain shaft couples to clamping hubs or sleeves, and a factory-installed shaft seal helps block lubricant migration into the stator cavity during normal service.