Product Description:

The MHD115C-059-PP0-AA is a servo motor manufactured by Bosch Rexroth Indramat as part of the MHD Synchronous Motors series. It converts electrical power into controlled mechanical rotation for positioning tasks on automated production lines, machining centers, and material-handling axes. The motor uses a keyed shaft to transmit torque directly to couplings or gearboxes, and the output connector on side A supports straightforward power wiring. Because it does not include an integrated holding brake, vertical axes need an external braking or clamping method when power is removed.

At standstill, the unit sustains a continuous torque of 70.0 Nm, allowing it to support demanding loads without excessive thermal drift. A protection rating of IP65 helps keep dust and low-pressure water away from internal components, which supports use near active machinery. The square flange dimension of 192 mm matches the 115 frame size for rigid mounting, while a centering pilot helps align the motor accurately on the machine face. Heat from the 059 winding is removed by natural convection, so no fans or liquid circuits are required. The motor uses insulation class F, allowing internal hot-spot temperatures up to 155 °C during transient duty.

Position feedback is provided by an optical digital servo encoder with a system accuracy of ± 0.5 angular minutes. The encoder uses multi-turn absolute feedback over more than 4096 revolutions, so position information remains available across repeated turns. A pilot diameter of 180 mm centers the flange, and the permitted ambient operating range is 0 to 40 °C. Storage is permitted from -20 °C to +80 °C, and installation is allowed up to 1000 m above mean sea level. The motor has length code C, which indicates the active stack depth, and a shaft seal is fitted to help maintain the housing protection during operation.