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R911284185 (MHD071A-061-NG0-UN)

MHD Synchronous Motors

Rated 4.5 stars (11 total reviews)
  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

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3 Minutes 12 Seconds

The Rexroth MPN R911284185 (MHD071A-061-NG0-UN) is an MHD synchronous servo motor featuring a liquid-cooled housing and a plain shaft with shaft seal. This model is equipped with digital servo feedback (HSF) for relative position detection and operates without a holding brake. Key specifications include a continuous torque at standstill of 3.5 Nm, peak torque of 14.0 Nm, maximum speed of 4500 min⁻¹, 23.4 A peak current, 4 pole pairs, and a winding inductivity of 16.0 mH. The flange size is 115 mm with a centering diameter of 95 mm. The motor offers turnable power connections within 270°, suitable for precise automation requirements in industrial settings.

Technical Specifications

Functionality
Versatile

Motor Speed
4500min

Peak Current
23.4A

Pole Pairs
4

Theoretical Maximum Torque
14.0Nm

Winding Inductivity
16.0mH

How does the liquid-cooled housing in the MHD071A-061-NG0-UN affect long-term operation?

It dissipates heat more effectively than air cooling, allowing the motor to run at higher duty cycles. This reduces thermal stress on windings and extends service life in demanding applications.

What is the benefit of using a sealed shaft design with a shaft seal?

The seal prevents dust, oil, and coolant ingress into the motor. This protection is critical in CNC and machining environments where contaminants are common.

How does the winding code 061 influence efficiency?

The winding characteristics are optimized to balance torque output and electrical consumption. This helps achieve efficient torque delivery without excessive heating.

What should be considered when mounting the MHD071A-061-NG0-UN on machinery?

It uses a 115 mm flange and 95 mm centering diameter, so proper alignment is essential. Accurate mounting ensures minimal vibration and consistent shaft load distribution.

How does the compact motor size affect integration in multi-axis systems?

Smaller profiles enable closer spacing of axes in confined machine frames. This is especially useful in robotics or packaging systems with limited installation space.

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Internal Product Review

The MHD071A-061-NG0-UN is an efficient servo motor belonging to the Bosch Rexroth Indramat MHD Synchronous series. It features a liquid-cooled housing and uses a digital HSF encoder with turnable connectors over 270° and a sealed plain shaft. It is used in CNC machines, robotic axes, high-precision tooling, and industrial automation systems.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MHD071A-061-NG0-UN.
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