MHD093B-058-NG1-BN Bosch Rexroth Indramat
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MPN: R911275103
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The Bosch Rexroth Indramat MHD093B-058-NG1-BN is a servo motor from the MHD Synchronous Motors series featuring a plain shaft and digital servo feedback encoder. This motor provides a continuous torque at standstill of 17.5 Nm, includes a 22 Nm holding brake, and is cooled by liquid. It has an IP65 degree of protection, insulation class F, and supports a centering diameter of 130 mm with a flange size of 140/150 mm.
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Product Description:
The MHD093B-058-NG1-BN is a servo motor manufactured by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It converts electrical power into rotary motion for position-controlled axes in packaging lines, machine tools, and material-handling stations. Relative position feedback is supplied by an optical digital servo encoder, and the motor includes an integrated holding brake to secure loads when drive power is removed. This layout makes the unit suitable for applications that need controlled acceleration, steady low-speed motion, and accurate stopping at repeated positions.
The motor delivers a continuous standstill torque of 17.5 Nm, allowing stable holding or low-speed operation without thermal overload. Its housing is sealed to IP65, helping protect internal components against dust and low-pressure water jets in industrial washdown areas. Heat generated in the windings is removed by liquid cooling, permitting high continuous output while keeping the package size consistent with the 093 frame. Position repeatability is supported by a feedback system that limits composite error to ± 0.5 arcminutes. During power-off conditions, the mechanical brake supplies 22.0 Nm of torque to hold the shaft and prevent unintended movement on vertical or suspended loads. This arrangement supports precise motion control without requiring a separate external holding device on the axis.
Mechanical integration is supported by a 130 mm centering diameter and a flange that matches 140/150 mm mounting patterns. Reliable operation is permitted from 0 to 40 °C, and storage is permitted from -20 to 80 °C when the motor is not in use. The windings use Class F insulation, providing thermal margin when the motor is installed up to 1000 m above mean sea level. The plain shaft uses a factory-installed seal and mates to couplings without keyways, while power leads exit on side B through an output connector for common cabinet layouts. The flange and centering features also help align the motor with machine interfaces and coupling components.
Frequently Asked Questions about MHD093B-058-NG1-BN:
Q: Does the MHD093B-058-NG1-BN servo motor include a holding brake?
A: This model is equipped with a holding brake providing 22.0 Nm of torque for secure load holding.
Q: What is the continuous torque at standstill for the MHD093B-058-NG1-BN?
A: The MHD093B-058-NG1-BN has a continuous standstill torque of 17.5 Nm.
Q: What type of housing cooling does the MHD093B-058-NG1-BN support?
A: This motor features liquid cooling for its housing, enhancing thermal management.
Q: What encoder type is used in the MHD093B-058-NG1-BN motor?
A: The MHD093B-058-NG1-BN utilizes digital servo feedback (HSF) for encoder functions.
Q: What is the degree of protection offered by the MHD093B-058-NG1-BN motor?
A: It offers IP65 degree of protection, ensuring resistance against dust and low-pressure water jets.
