Product Description:

The MHD090B-058-PG1-UN is a servo motor produced by Bosch Rexroth Indramat and assigned to the MHD Synchronous Motors series. Within the product line, code 090 identifies the frame diameter, while motor length B indicates a body depth suited for medium-inertia loads. Winding code 058 indicates the stator layout used for its voltage, current, and speed combination with compatible Rexroth drives. As a closed-loop servo motor, the model supplies controlled torque and position for automated packaging machinery, handling axes, and similar industrial motion stations where repeatable movement is required.

The drive section can generate a continuous stall torque of 12.0 Nm, providing steady force for holding or slow-speed moves without thermal stress. Heat produced during that duty is removed through liquid cooling, so output can stay at rated values even inside sealed machine frames. The mounting interface uses a 110 mm centering diameter and a 140 mm square flange, giving direct interchange with other ISO-dimensional motors. Cables enter through a connector block that is turnable through 270°, which simplifies routing in tight machine spaces. Separate power and feedback connectors are fitted, and a shaft seal helps limit oil or coolant ingress along the rotating joint.

A permanent-magnet holding brake is integrated and supplies a peak restraining moment of 11.0 Nm, so vertical axes stay locked when power is removed. Rotor position is measured by digital servo feedback with an integrated encoder that supports multiturn tracking. Combined with the sensor’s absolute (>4096 revolutions) resolution, the drive controller can recover exact position after a shutdown without homing. Output torque is transmitted through a plain shaft, which supports direct coupling arrangements that use clamping elements rather than a keyed connection.