Product Description:

The MDD090B-N-040-N2M-130PB2 is a motor for digital drive controllers manufactured by Bosch Rexroth Indramat as part of the MDD Synchronous Motors series. It converts drive current into commanded rotary motion for positioning axes, pick-and-place heads, and tool spindles used in automated machinery, integrating directly with closed-loop inverters for accurate speed and torque control in high-cycle industrial lines. This arrangement helps the motor respond quickly to changing load demands during indexing, transfer, and spindle tasks. It is suited for automated equipment that requires repeatable starts, stops, and speed changes across frequent operating cycles.

At standstill, the motor delivers 7.2 Nm of continuous torque for holding duty. Its rated speed of 4000 rpm suits many spindle and conveyor axes without driving the connected mechanics faster than necessary. An internal blocking brake provides 11.0 Nm of static torque to secure vertical loads when power is off. The 130 mm centering pilot establishes the mounting interface, and the power and feedback plugs face side B to simplify cable routing. Standard dynamic balancing reduces vibration, while size 090 with motor length code B sets the installation envelope and a circular connector completes the electrical interface.

Position data is transmitted through the Digital servo feedback (DSF) interface to maintain closed-loop control at the drive. This loop uses an onboard integrated multi-turn absolute encoder that retains shaft position after a full power loss, removing the need for a homing cycle at restart. A standard housing encloses the laminations, and an internal shaft seal helps keep oil spray away from internal components. The motor uses a single-ended shaft with a keyway profile for positive torque transfer, and the lack of a side-B shaft end keeps the connector area compact and reduces cable strain. The keyed output also supports couplings and drive elements that require positive mechanical engagement.