R911284987 (MHD112B-048-NG0-AN)

Name: R911284987 (MHD112B-048-NG0-AN)
Brand: Indramat Motors
SKU: MHD112B-048-NG0-AN
Price: 196.00 USD
Availability: InStock

MHD Synchronous Motors

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Email:
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The R911284987 (MHD112B-048-NG0-AN) is a synchronous servo motor designed by Bosch Rexroth for integration into digital intelligent drive systems. It features a winding code of 048, a size 112 motor, and a B-length motor body. The motor utilizes digital servo feedback (HSF) for relative position detection and operates without a holding brake. Continuous torque at standstill reaches 28.0 Nm with natural cooling, with maximum torque values of 33 Nm (natural) and 42 Nm (surface) at standstill. Rated current ranges from 6.9–16.9 A (natural cooling) up to 27.5 A (surface cooling), and it delivers 2.7–11 kW output when supplied at 227–251 VAC. The unit has a plain shaft, a shaft seal, a centering diameter of 130 mm, and flange size of 192 mm. It is housed in an enclosure rated IP65 for protection against dust and water and supports mounting in multiple positions. Power connection is via an output connector facing side A.

Technical Specifications

Product Type
Synchronous Motor

Rated Current (Natural Cooling)
6.9–16.9 A

Rated Current (Surface Cooling)
27.5 A

Standstill Position Torque (Natural Cooling)
28/33 Nm

Standstill Position Torque (Surface Cooling)
42 Nm

Consumption Current at Standstill
35.6–53.4 A

Holding Brake
Not equipped

Power Output Shaft
Plain

Rated Power
2.7–11 kW

Input Power Voltage
227–251 VAC

IP Protection Category
IP65

Cooling Modes
Natural and Surface

Position Detection
Digital Servo Feedback

Connector Location
Top of the Motor

Centering Diameter
130 mm

Mounting Positions
IMB5, IMV1, IMV3

Frequently Asked Questions

Does the MHD112B-048-NG0-AN provide secure load retention in power-off conditions?

This model lacks a holding brake, which limits its ability to maintain position without active control. Additional system-level safety may be needed for vertical or static load applications.

How does this motor perform thermally under sustained torque output in enclosed machinery?

It uses liquid cooling to manage internal temperatures during continuous operation. This helps prevent heat buildup in tight or poorly ventilated installations.

Is this motor suitable for applications requiring homing accuracy after each restart?

It features relative position detection via digital feedback, which lacks absolute referencing. Homing cycles are required after power interruptions to re-establish position.

How does the shaft interface withstand contaminants in exposed mechanical systems?

The plain shaft includes a protective seal to block dust and fluids. This improves mechanical reliability in open or unfiltered environments.

Will the MHD112B-048-NG0-AN mount consistently in standard drive assemblies?

Its 130 mm centering diameter provides precise fitment within standard servo motor mounts. This ensures alignment stability during both assembly and operation.

Common Misspellings

MHD112B048NG0AN

MHD112B 048 NG0 AN

mhd112b-048-ng0-an

Internal Product Review

The Rexroth Indramat MHD112B-048-NG0-AN is a servo motor designed with a 130 mm centering diameter for precision mounting. It features liquid cooling, digital servo feedback with relative position detection, 28.0 Nm continuous standstill torque, and no holding brake. Its sealed plain shaft ensures smooth, reliable motion transmission.