Product Description:

The MHD093B-058-NP0-BN is a servo motor built by Bosch Rexroth Indramat for the MHD Synchronous Motors series. In automated machinery, the motor converts drive commands from a controller into precise rotary motion for axes that require repeatable positioning and stable speed regulation. Its compact 093 frame and integrated feedback support use on tooling axes, transfer arms, and conveyor sections where accurate response is important during start, stop, and index movements. Because the feedback device is integrated into the motor, the connected drive can monitor rotor movement directly and correct deviations during acceleration and deceleration.

The motor mounts on a 140/150 mm flange and centers on a 130 mm spigot. The shaft provides 17.5 Nm of continuous standstill torque for static load holding. An IP65 enclosure blocks dust and low-pressure water jets, and heat is removed by liquid cooling to keep the windings within temperature limits. This cooling method supports operation in enclosed machine spaces where surrounding airflow may be limited. Position feedback comes from digital servo feedback (HSF), which uses an optical track to return incremental data to the connected drive.

In normal service, the motor operates within an ambient range of 0 to 40 °C, while storage limits extend from -20 to +80 °C to protect magnetic materials. Winding insulation is rated Class F, which supports thermal loading during repeated motion cycles at elevations up to 1000 m above mean sea level. For mounting, length code B keeps the housing compact, and the motor uses a keyed shaft for positive torque transfer. Position is detected on a relative basis with optical measurement, delivering a system accuracy of ±0.5 angular minutes when combined with the encoder. The relative feedback format requires the drive to establish a reference position through the machine control sequence. Electrical leads exit on side B through an output connector, and a shaft seal helps maintain enclosure protection. The motor is supplied without a holding brake, so an external brake or drive-applied torque is needed when the axis must remain fixed after power is removed.