MHD115C-058-PG1-BA

The Bosch Rexroth Indramat MHD115C-058-PG1-BA synchronous motor from the MHD Synchronous Motors series combines high-performance permanent-magnet technology with robust industrial design to serve demanding motion control applications. Featuring electronic commutation and low inertia, the MHD115C-058-PG1-BA delivers precise positioning and rapid dynamic responses when paired with Rexroth drive controllers. Its integrated multi-turn absolute encoder provides reliable digital servo feedback for closed-loop control, eliminating the need for external sensors. The motor’s natural convection housing cooling and IP65 shaft seal ensure long-term operation in harsh environments. With a winding code of 058 and plain shaft design, this unit supports versatile installation and integration.

In terms of critical dimensions, the MHD115C-058-PG1-BA has a centering diameter of 180 mm and a flange size of 192 mm, corresponding to a motor size designation of 115. The motor length is classified as C, with a shaft diameter of 38 mm and approximately 80 mm protrusion beyond the housing. Continuous torque at standstill is rated at 70.0 Nm, matching the brake holding torque of 70.0 Nm. Feedback is provided by an integrated encoder supporting absolute position detection over 4096 revolutions. Power connections are made via an output connector directed to side B, simplifying cable routing and service access.

Operational performance is characterized by constant torque delivery and fast reaction to control inputs. The holding brake operates at 24 V DC with a current draw of 1.29 A, offering connection and disconnection times of 53 ms and 97 ms respectively. The brake assembly adds 3.8 kg to the motor’s mass, with the bare motor weighing 55 kg. The intelligent encoder design and robust shaft seal contribute to an overall IP65 protection rating, guarding internal components against dust ingress and water jets. Natural convection cooling provides passive thermal management, maintaining optimal operating temperatures without auxiliary fans.

System integration is straightforward when pairing the MHD115C-058-PG1-BA with approved Bosch Rexroth drive controllers, programmed to match specific machine requirements. The digital servo feedback and absolute position detection support advanced motion sequences in applications such as machine tools, handling systems, automation lines, and printing machinery. Only Rexroth-specified accessories and environmental conditions are permitted to ensure compliance with safety and performance criteria. The combination of high torque, precision feedback, and rugged protection makes this motor ideal for industrial automation and high-precision servo tasks.