MHD115A-058-NG1-BN Bosch Rexroth Indramat
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MPN: R911282297
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The Bosch Rexroth Indramat MHD115A-058-NG1-BN is a servo motor from the MHD Synchronous Motors series, featuring a continuous torque at standstill of 32.0 Nm and an IP65 protection rating. It has liquid cooling, a flange size of 192 mm, and includes a holding brake with 70.0 Nm torque. This motor uses digital servo feedback for position detection and operates in ambient temperatures from 0 to 40 °C.
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Product Description:
The MHD115A-058-NG1-BN is a synchronous servo motor built by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It delivers closed-loop rotary motion for industrial automation where precise speed and position control are required. Position information is gathered optically with relative detection, and a plain shaft with an installed shaft seal transfers torque to the load. Power is routed through an output connector on side B, which helps simplify cable routing in machine layouts that require orderly separation of motor and feedback wiring. The motor follows insulation class F rules, can be installed up to 1000 m above mean sea level, and can be stored safely between -20 °C and 80 °C.
This unit supplies 32.0 Nm of continuous standstill torque while staying inside a 0 to 40 °C operating envelope. A housing that relies on liquid cooling removes heat, so stable thermal performance can be maintained in enclosed machine spaces where natural airflow is limited. The enclosure is rated at IP65, which protects the motor against dust ingress and water jets during normal industrial use. A 180 mm centering diameter and a 192 mm flange interface align the motor concentrically to driven machinery. Winding code 058 identifies the electrical characteristics matched to compatible Rexroth drives, while motor size 115 and length A indicate the overall package dimensions. The plain shaft arrangement also supports coupling methods that do not require a keyed shaft profile.
Dynamic holding power is provided by an integrated brake that delivers 70.0 Nm of torque, preventing back-driving when power is removed. Motion feedback comes from a Digital servo feedback (HSF) encoder with a system accuracy of ± 0.5 angular minutes, supporting precise positioning and repeatable indexing behavior. A 192 mm flange provides a rigid mounting interface for the motor housing and helps maintain alignment with the driven axis. The optical measurement method and NG1 relative sensing arrangement support controlled motion in systems that rely on consistent feedback quality during direction changes and speed adjustments. The installed shaft seal also helps protect internal components in applications where clean mechanical interfaces are important.
Frequently Asked Questions about MHD115A-058-NG1-BN:
Q: What is the continuous torque at standstill for the MHD115A-058-NG1-BN motor?
A: This motor provides a continuous torque of 32.0 Nm at standstill for long-term operation.
Q: What is the degree of protection for the MHD115A-058-NG1-BN servo motor?
A: The MHD115A-058-NG1-BN offers high protection with an IP65 rating, making it resistant to dust and low-pressure water jets.
Q: What type of housing cooling does the MHD115A-058-NG1-BN motor use?
A: This model is equipped with liquid cooling for efficient heat management during operation.
Q: Does the MHD115A-058-NG1-BN motor come with a holding brake and what is its brake torque?
A: A holding brake is included on this motor, providing a brake torque of 70.0 Nm.
Q: What type of encoder and measurement method does the MHD115A-058-NG1-BN use for position feedback?
A: The encoder uses digital servo feedback (HSF) with an optical measurement method for position detection.
