R911273948 (MHD071B-061-NG0-UN)

Name: R911273948 (MHD071B-061-NG0-UN)
Brand: Indramat Motors
SKU: MHD071B-061-NG0-UN
Price: 401.00 USD
Availability: InStock
Rating: 4 (9 reviews)

MHD Synchronous Motors

Rated 4.0 stars (9 total reviews)

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The R911273948 (MHD071B-061-NG0-UN) is a synchronous servo motor from Bosch Rexroth, part of the MHD series, with a motor size of 071 and a B motor length. It features a plain shaft with a sealing ring, a 061 winding code, and digital servo feedback (HSF) for relative position detection. The housing is designed for natural convection or surface cooling and is coated for resistance to weathering and diluted acids. The unit has a centering diameter of 95 mm, a flange size of 115 mm, and operates without a holding brake. Electrical connections are provided through power and feedback connectors, with the power connection being turnable within a 270° range. The device supports a maximum speed of 6000 rpm, delivers a continuous torque at standstill of 8.0 Nm, weighs 8.8 kg, and complies with IP65 protection. It is designed for operation up to 1000 meters above sea level and within a temperature range of 0 to 40°C. Transport should be performed horizontally with shock-absorbing support.

Technical Specifications

Product Group
MHD

Cooling System
Natural Convection

Shaft Type
Plain with Sealing Ring

Servo Feedback
Digital

Winding Code
061

Motor Size
071

Mounting Positions
IM B5, IM V1, IM V3

Transport Position
Horizontal

Motor Type
Permanent-Magnet with Electronic Commutation

Maximum Setup Height
1000 Meters Above Sea Level

Operating Temperature
0 to 40 Degrees

Storage/Transport Temperature
-20 to 80 Degrees

Weight
8.8 kg

Maximum Speed
6000 RPM

Protection Category
IP 65

Frequently Asked Questions

How does the IP65 rating of this motor affect its installation?

An IP65 rating allows installation in environments with dust and water spray without needing extra enclosures. It simplifies integration into harsh or outdoor industrial systems.

Why is a plain shaft with a shaft seal used in the MHD071B-061-NG0-UN?

The plain shaft allows flexible coupling to downstream loads while the seal prevents contaminants from entering. This design ensures longer service life in dusty or humid setups.

Why is brushless commutation an advantage in this model?

Brushless motors reduce maintenance and eliminate issues like sparking or brush wear. This improves reliability in continuous-use or sealed installations.

Is the MHD071B-061-NG0-UN compatible with liquid-cooled systems?

Yes, it supports optional liquid cooling configurations. This is beneficial for high-duty-cycle applications with limited airflow or elevated ambient temperatures.

How does flange size impact mounting in automation systems?

The flange size determines compatibility with standard mechanical interfaces. A 115 mm flange simplifies retrofits into systems using IEC-compliant mounts.

Common Misspellings

MHD 071B 061 NG0 UN

MHD 071B-061-NG0-UN

MHD-071B-061-NG0-UN

MHD071B061NG0UN

MHD07IB-06I-NG0-UN

MHDO71B-O61-NGO-UN

MHD071B 061 NG0 UN

mhd071b-061-ng0-un

MHD71B-061-NG0-UN

Internal Product Review

The Bosch Rexroth Indramat MHD071B‑061‑NG0‑UN servo motor delivers a rugged IP65‑rated enclosure, 8 kg mass, 115 mm flange, and 6000 RPM speed capability. It supports digital servo feedback (HSF), and 270° rotatable connectors. It is suited for automation, printing, packaging, and CNC machine tool systems.