Product Description:

The MKD090B-085-KG1-BN is a servo motor built by Bosch Rexroth Indramat within the MKD Synchronous Motors series. It is intended to supply controlled rotational motion to indexing tables, packaging spindles, and other axes that require repeatable speed and position control in automated machinery. By pairing with a Rexroth digital drive, the unit closes the position loop directly at the motor, which helps reduce following error and enables high cycle rates in production environments.

The motor generates a continuous standstill torque of 12.0 Nm, allowing it to hold load without forced cooling while currents remain within rated drive limits. The motor uses a 140 mm flange, and the pilot register has a 110 mm centering diameter to keep the housing concentric with gearheads or machine frames. Position feedback is delivered by resolver feedback, which supplies real-time angle data to the amplifier even during high vibration. A built-in holding brake rated at 11 Nm secures the shaft when power is removed, and the brake as well as power leads exit on side B of the enclosure to simplify cable routing in cabinets with rear service access.

With size code 090 and the medium body length designated B, the motor balances thermal capacity against footprint for multi-axis gantries. The drivetrain interfaces through a plain shaft, so torque is transferred by clamping hubs or couplings without key slots that could introduce backlash. A shaft seal is fitted to limit the ingress of cutting fluid or dust. Rotor orientation is tracked by absolute position detection with more than 4096 revolutions, removing the need for homing sequences after power cycling. All electrical phases and sensor leads are consolidated in a single output connector, which reduces installation time and keeps cable routing compact.