Product Description:

The MHD115B-058-NP0-LA is a servo motor manufactured by Bosch Rexroth Indramat as part of the MHD Synchronous Motors series. As a permanent-magnet AC unit, it delivers precise torque and speed regulation for axes in industrial automation cells, packaging lines, and machining centers. A left-side power connector simplifies cabinet wiring.

Its continuous stall torque of 50.0 Nm allows the motor to hold or drive medium-to-heavy loads without overheating, while the F-class insulation sustains winding temperatures up to 155 °C during that duty. An enclosure rating of IP65 seals the housing against dust and low-pressure water jets, so the keyed shaft and integral shaft seal operate reliably on the plant floor. Heat is removed through natural convection, eliminating the need for forced air ducts. Position feedback is supplied by digital servo feedback (HSF), which uses an optical measurement method to report relative position to the drive. The system accuracy of ±0.5 angular minutes supports fine contouring tasks. The winding code 058 matches drives configured for that electrical constant. The motor is supplied without a holding brake, which means external mechanical restraints must secure vertical axes when power is removed.

The mechanical envelope follows size 115 and length code B, giving a centering diameter of 180 mm and a square flange of 192 mm for direct mounting to planetary gearboxes or machine frames. During operation, the unit can be installed up to 1000 m above mean sea level and run in ambient air from 0 to 40 °C without derating. When stored or transported, it tolerates temperatures from -20 to +80 °C. Relative position detection keeps the feedback loop compact, and the keyed shaft transmits torque without slip. The present shaft seal further limits contamination ingress to the bearing set.