Product Description:

The MHD115B-058-NG1-AN is a servo motor manufactured by Bosch Rexroth Indramat for the MHD Synchronous Motors series. In automated cells, it converts controlled drive current into rotary motion for indexing tables, gantries, and other axes that demand precise torque regulation and repeatable positioning during frequent starts, stops, and direction changes. The 115 frame with B length gives the motor a medium-sized package suited to transfer modules where torque output must be balanced with installation space. It is intended for closed-loop motion duties where the controller must maintain position accuracy under changing load conditions.

The motor mounts to machinery through a flange that measures 192 mm, while a centering diameter of 180 mm keeps the stator concentric with the driven load. The flange pilot helps align the motor face accurately with machine plates or gearbox adapters, which reduces mounting error at the shaft centerline. At standstill, it can deliver a continuous torque of 50.0 Nm, so axis control remains stable during low-speed material handling or indexing. Heat is removed by a liquid cooling system that surrounds the housing, allowing the unit to sustain rated current without external fans. For emergency stopping and vertical-axis safety, an internal brake supplies 70.0 Nm of holding torque. The shaft is a plain cylindrical interface, and a shaft seal is fitted to help prevent coolant or lubricant from reaching internal motor components.

Servo loop data is produced by a digital servo feedback (HSF) encoder, which reports incremental position and speed with high resolution for closed-loop control. This feedback arrangement supports stable speed regulation and accurate position tracking during synchronized motion. The motor uses winding code 058, and the matching drive applies the current limits and commutation values associated with that winding. Power is introduced through an output connector on side A of the housing, helping keep high-voltage cabling away from moving machine members. Motion is referenced to relative position detection, so the controller performs a homing cycle after power-up before normal axis travel begins.