Product Description:

The MHD115C-058-NG0-AA is a servo motor manufactured by Bosch Rexroth Indramat and sold within the MHD Synchronous Motors series. In an automation cell, it converts drive current into controlled rotary motion so positioning, indexing, or feed tasks can be synchronized with a CNC or PLC. Integrated digital feedback and tight mechanical tolerances give the unit the repeatability required for material-handling axes, gantry loaders, and machine tool spindles.

At standstill, the motor supplies a continuous torque of 70.0 Nm, allowing it to hold static loads without external gearing while power is applied. Its housing is sealed to IP65, preventing dust and low-pressure water jets from reaching internal components. Rotor position is measured with Digital servo feedback (HSF), which uses an optical track and provides relative position data to the drive controller. Heat leaves the frame through natural convection, so no fan or liquid circuit is required. Closed-loop accuracy is maintained within ± 0.5 angular minutes, and the motor is supplied without a holding brake, so vertical loads must be secured by external clamping or motor torque during power-off. Class F insulation supports elevated winding temperatures during intermittent duty, and winding code 058 identifies the electrical constants used by the drive.

The motor has a centering diameter of 180 mm and a square flange that measures 192 mm. Power conductors exit toward side A through an output connector, and the plain shaft includes an integral seal to help block oil migration. The motor uses size 115 laminations and the medium C length stack, which gives it a moderate moment of inertia. Acceptable ambient operation spans 0 to 40 °C, and storage is permitted from -20 to +80 °C. Installation is permitted at heights up to 1000 m above MSL before derating becomes necessary.