Product Description:

The MDD093D-N-040-N2M-110PB2 synchronous servo motor is manufactured by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. It is intended for use with digital drive controllers, where it provides closed-loop rotary motion for positioning, feed, and handling axes in automated machinery. Frame size 093 and length code D indicate the motor’s active iron stack length, and the balancing grade is standard so the rotor remains within normal vibration limits on typical couplings. A standard housing encloses the stator, the shaft end is present only on the drive side, and a fitted shaft seal helps keep oil mist and dust away from internal components.

The motor develops a continuous standstill torque of 24.0 Nm, which allows it to hold load at zero speed without forced cooling. Under rated excitation it reaches a nominal speed of 4000 rpm, making it suitable for applications that require rapid indexing and stable speed control. Mechanical centering during mounting is provided by a 110 mm pilot diameter that keeps the flange aligned with connected gearboxes or machine plates. Power and feedback conductors exit from Side B, and a pre-installed connector simplifies wiring. Position information is returned through Digital servo feedback (DSF), allowing the drive to regulate torque and velocity in closed loop.

An integrated multiturn absolute encoder retains position information across multiple revolutions even when power is removed, so the axis can restart without a homing cycle. For vertical axes or dwell positioning, a blocking brake rated at 22 Nm clamps the rotor when the drive is disabled and helps hold the load during power-off stops. Torque is transferred to the load through a shaft machined with a keyway, allowing standard keyed hubs to mount without custom adapters. This shaft arrangement supports secure mechanical coupling where positive torque transmission is required.