R911287529 (MHD112B-048-NG0-BN)

Name: R911287529 (MHD112B-048-NG0-BN)
Brand: Indramat Motors
SKU: MHD112B-048-NG0-BN
Price: 252.00 USD
Availability: InStock

MHD Synchronous Motors

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The Bosch Rexroth MPN R911287529 (MHD112B-048-NG0-BN) is a synchronous servo motor designed for integration into automated motion systems. It features 4 pole pairs, delivers rated power between 2.7 and 11 kW, and supports a rated current of 6.9 to 27.5 A at a steady speed of 2800 rpm. The motor operates with an AC supply voltage of 227–251 V and maintains specified performance at an ambient temperature range of 0 to 40°C and up to 90% humidity. The device is built with a plain shaft including a seal, a centering diameter of 130 mm, flange size of 192 mm, and utilizes digital servo feedback (HSF) for relative position detection. It does not include a holding brake, employs liquid cooling for its housing, and provides continuous torque of 28.0 Nm at standstill. Connection is established on side B via output connector. The motor is suitable for applications requiring precise control and dynamic response.

Technical Specifications

Product Type
Synchronous Motor

Electrical Power
227 – 251 V

Shaft type
Plain

Operating Speed
2800 rpm

Ambient Temperature Range
0 to +40 degree Celsius

Max Humidity Level
90%

Mounting
Shock-free environment

Pole Pairs
4

Rated Power
2.7 – 11 kW

Rated Current
6.9 – 27.5 A

Torque Constant at 20 degree Celsius
0.88 Nm/A

Voltage Constant
80 V/1000 rpm

Servo Feedback
Digital

Output Connector Position
B-side

Frequently Asked Questions

How does the MHD112B-048-NG0-BN manage heat during prolonged operation in compact installations?

Its liquid-cooled housing actively regulates core temperature under continuous torque. This supports consistent output in thermally confined machine environments.

What feedback resolution can be expected in high-speed servo positioning loops?

The motor uses a digital servo feedback encoder (HSF) for high-resolution relative position tracking. It provides reliable motion control but requires homing at startup.

How is the shaft protected when exposed to oil spray, dust, or fine particulates?

A plain shaft with a shaft seal ensures sealing integrity at the mechanical interface. This enhances service life in semi-enclosed or unfiltered systems.

Will the MHD112B-048-NG0-BN maintain torque stability at zero speed under load?

It delivers 28.0 Nm continuous torque at standstill for constant force output. This supports precision applications requiring high static load handling.

Can the power connection layout improve space utilization in control cabinet designs?

Its side B output connector enables alternative routing paths away from standard layouts. This simplifies cable management in asymmetric or edge-mounted enclosures.

Common Misspellings

MHD112B048NG0BN

MHD112B 048 NG0 BN

mhd112b-048-ng0-bn

Internal Product Review

The MHD112B-048-NG0-BN servo motor from Bosch Rexroth Indramat is equipped with a plain shaft and shaft seal. It offers 28.0 Nm standstill torque, liquid-cooled housing, and a side-B power connector for streamlined integration. Its HSF digital servo feedback ensures responsive and precise motion control throughout operation.