Product Description:

The MHD112A-058-PP0-BN is a servo motor produced by Bosch Rexroth Indramat within the MHD Synchronous Motors series. It uses digital servo feedback with an integrated optical encoder to provide absolute position data across more than 4096 revolutions. This allows the connected drive to monitor rotor position continuously for accurate speed control and repeatable positioning during axis movement. A keyed shaft transfers torque to the load, and power wiring exits on side B through an output connector. The motor is supplied without a holding brake, so load retention must come from drive torque or an external locking device when power is removed. It is intended for closed-loop axis control in packaging, gantry, and material-handling systems where controlled acceleration and stable positioning are required.

A centering diameter of 130 mm allows precise alignment with gearbox or machine flanges, while a continuous standstill torque of 15.0 Nm indicates the sustained load the motor can hold without overheating. The stator jacket uses liquid cooling, so heat is removed through a coolant circuit instead of ambient air, which helps maintain thermal stability during constant duty. The housing is sealed to IP65, helping protect internal components from dust and low-pressure water jets during normal industrial use. Rated operation is permitted at ambient temperatures from 0 to 40 °C, which suits common production environments. Liquid cooling also reduces dependence on surrounding airflow, which is useful when nearby machine components limit free air circulation.

The mounting interface uses a flange with a diameter of 192 mm, and a shaft seal helps keep coolant or oil out of the bearing chamber. The feedback system has an accuracy of ±0.5 angular minutes, supporting precise absolute position detection during axis motion. Installation is permitted up to 1000 m above sea level, and the winding insulation uses Class F materials to tolerate elevated internal temperatures. Additional details include frame size 112, the short A-length housing, a 058 winding code, and a storage temperature range of -20 to +80 °C. That storage range allows the motor to remain in unpowered storage conditions outside its normal operating temperature band.