R911286752 (MHD112B-058-NG1-AN)

Name: R911286752 (MHD112B-058-NG1-AN)
Brand: Indramat Motors
SKU: MHD112B-058-NG1-AN
Price: 776.00 USD
Availability: InStock

MHD Synchronous Motors

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The Bosch Rexroth MPN R911286752 (MHD112B-058-NG1-AN) is a synchronous servo motor configured with a digital servo feedback (HSF) encoder for relative position detection. It features a liquid-cooled housing, a plain shaft with shaft seal, and is equipped with a holding brake offering 22.0 Nm of torque. The unit supports a continuous torque at standstill of 28.0 Nm, with a continuous current of 40.7 A in standby mode, and a winding code of 058. Its moment of inertia for the brake is 3.6 x 10⁻⁴ kg·m². The motor is suitable for operation within an ambient temperature range of 0-40°C, uses a power output connector directed to side A, and has a centering diameter of 130 mm with a flange size of 192 mm. Proper installation and grounding are necessary, and manufacturer specifications for storage and handling should be followed.

Technical Specifications

Feedback Method
Digital Servo Feedback

Application
Handling and Automation Systems

Holding Brake
22Nm

Operating Mode
Electrically Releasing

Installation Precaution
Permanent Ground Wire Connection

Protective Sleeve
Plastic, Remove Before Use

Transportation and Storage
Horizontal

Shaft and Flange
Protected

Winding Code
058

Rated Frequency with Natural Convection Cooling
267Hz

Ambient Temperature Range
0°C to 40°C

Holding Brake Moment of Inertia
3.6 x 10-4kgm2

Continuous Torque at Standstill
28Nm

Continuous Current at Standstill
40.7A

Leakage Current of Drive Controller
More than 3.5mA

Pressurized State
Non-Disassemble / Non-Opened

Frequently Asked Questions

How does the MHD112B-058-NG1-AN manage heat during continuous-duty torque cycles?

Its liquid-cooled housing actively dissipates heat under sustained mechanical load. This maintains thermal balance for consistent performance over long operation periods.

What safety measure supports load retention during a power loss scenario?

A 22 Nm holding brake locks the rotor when power is removed. This secures the load in vertical axes or during controlled shutdowns.

How does the encoder type affect system behavior after restarts?

The digital HSF encoder provides relative position feedback. Homing is required at startup to re-establish positional reference.

How is shaft protection ensured in contamination-prone operating conditions?

The plain shaft includes a sealing mechanism to block debris and moisture. This improves reliability in industrial or semi-exposed machine environments.

Will this motor align properly with standard servo system mounts?

Yes, its 192 mm flange and 130 mm centering diameter conform to servo mounting standards. This enables consistent mechanical integration in modular setups.

Common Misspellings

MHD112B058NG1AN

MHD112B 058 NG1 AN

mhd112b-058-ng1-an

Internal Product Review

The MHD112B-058-NG1-AN by Bosch is a precision servo motor featuring a 130 mm centering diameter for accurate mounting. It offers liquid cooling, a plain shaft, a 192 mm flange, and a side-A power connector for flexible installation. Its 22 Nm holding brake provides secure load retention during shutdowns.