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MHD112B-058-NG1-AN Bosch Rexroth Indramat

MPN: R911286752

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The Bosch Rexroth Indramat MHD112B-058-NG1-AN is a servo motor from the MHD Synchronous Motors series with a continuous torque at standstill of 28 Nm and includes a holding brake with 22 Nm of torque. It features IP65 protection, liquid cooling housing, and a digital servo feedback encoder. The motor uses a plain shaft, has a flange size of 192 mm, and operates within an ambient temperature range of 0 to 40 degrees Celsius.

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Product Description:

The MHD112B-058-NG1-AN is a servo motor manufactured by Bosch Rexroth Indramat as part of the MHD Synchronous Motors series. The unit converts electrical energy into controlled mechanical motion for positioning tasks in automated machinery lines, where closed-loop velocity and torque regulation are required. Its construction supports integration with Indramat drive controllers, allowing precise axis control in packaging, material handling, and general factory automation.

At standstill, the rotor can deliver a continuous torque of 28.0 Nm, giving the drive adequate holding force for static loads without thermal overload. Heat generated by this load is removed through liquid cooling, so the stator maintains thermal equilibrium even during extended duty cycles. The housing has an ingress rating of IP65, meaning dust-tight sealing and resistance to low-pressure water jets, which is useful in washdown or particulate environments. A 192 mm square mounting flange aligns the motor with standardized machine faces, while the internal hollow-shaft encoder provides digital servo feedback (HSF) for high-speed position sampling that supports rapid control loop updates.

Dynamic positioning accuracy is supported by a holding brake that clamps the shaft with 22.0 Nm of static torque, preventing drift when power is removed. The motor uses Class F insulation, so winding temperatures up to 155 °C are permissible without loss of dielectric strength. When combined with the optical measurement system, the drive reaches a repeatable precision of ±0.5 angular minutes, which is suitable for multi-axis gantries installed up to 1000 m elevation. Reliable service is maintained across an ambient range of 0 to 40 °C, and a shaft seal protects the plain shaft interface against coolant ingress during continuous production cycles.

Ambient Storage Temperature Range
-20 to +80 °C
Centering diameter
130 mm
Continuous Torque at Standstill
28.0 Nm
Degree of protection
IP65
Encoder Type
Digital servo feedback (HSF)
Flange size
192 mm
Holding Brake
With holding brake
Holding Brake Torque
22.0 Nm
Housing Cooling Type
Liquid cooling
Insulation Class
F
Maximum setup height
1000 above MSL
Measurement method
Optically
Motor Length
B
Motor Size
112
Operating Ambient Temperature Range
0 to 40 °C
Power Connection Direction
to side A
Power Connection Type
Output Connector
Product Type
Servo Motor
Shaft Design
Plain shaft
Shaft Seal
Yes
System accuracy
± 0.5 angular minutes
Type of Position Detection
Relative
Winding Code
058
  • MHD112B058NG1AN
  • MHD112B 058 NG1 AN
  • mhd112b-058-ng1-an

Frequently Asked Questions about MHD112B-058-NG1-AN:

Q: What is the continuous torque at standstill for the MHD112B-058-NG1-AN?

A: The MHD112B-058-NG1-AN servo motor has a continuous torque at standstill of 28.0 Nm.

Q: What type of housing cooling does the MHD112B-058-NG1-AN use?

A: This model features liquid cooling for enhanced thermal management during operation.

Q: Does the MHD112B-058-NG1-AN motor come with a holding brake and what is its torque?

A: The MHD112B-058-NG1-AN includes a holding brake with a torque of 22.0 Nm.

Q: What is the degree of protection provided by the MHD112B-058-NG1-AN?

A: The degree of protection is rated at IP65, meaning it is dust tight and protected against water jets.

Q: What type of encoder and position detection does the MHD112B-058-NG1-AN utilize?

A: This motor uses digital servo feedback (HSF) for position detection, with optical measurement and relative positioning.


Internal Product Review

  • ‘‘The MHD112B-058-NG1-AN is a Bosch Rexroth Indramat servo motor with liquid cooling and IP65 protection. Digital servo feedback (HSF) and ±0.5 angular minute system accuracy support precise, stable motion control. A 28.0 Nm continuous torque at standstill and 22.0 Nm holding brake torque make this motor a strong choice for demanding axis applications.’’

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