Product Description:

The MHD115B-058-NP0-BA is a servo motor built by Bosch Rexroth Indramat for the MHD Synchronous Motors series. As a driven axis element, the unit converts electrical energy into controlled rotary motion so that packaging lines, transfer stations, or CNC tables can synchronize position and velocity with their drive controllers. The motor’s keyed shaft interfaces with couplings or pulleys, and its stator windings are matched to Indramat power modules through an output connector on side B of the housing. This layout supports repeatable motion in axes that make frequent starts, stops, and direction changes during automated cycles.

The mechanical envelope supports a continuous stall torque of 50.0 Nm, allowing the shaft to hold load inertia without additional gearing under sustained duty. The motor has an IP65 rating, so dust ingress is blocked and low-pressure water jets do not reach live parts. Position information is provided by digital servo feedback (HSF), which supplies high-resolution incremental data for closed-loop control. Alignment with gearboxes or adapter plates is simplified by the 180 mm centering diameter, while the mounting interface uses a 192 mm square flange pattern. Heat produced in the windings leaves the frame by natural convection, eliminating the need for external blowers or liquid circuits.

The motor offers a positioning tolerance of ± 0.5 angular minutes, supporting accurate repeat positioning in coordinated motion. Application sites may expose the unit to ambient temperatures from 0 to 40 °C during operation, while storage or transit can span -20 to +80 °C without harming magnetic or insulation properties. Class F windings withstand elevated internal temperatures, and a shaft seal helps keep lubricant away from the feedback section. The design omits a holding brake, so static load retention must be provided by the drive or by external mechanics when the axis is stopped. Installation is permitted at altitudes up to 1000 m above mean sea level.