R911285991 (MHD112B-058-NP1-BN)

Name: R911285991 (MHD112B-058-NP1-BN)
Brand: Indramat Motors
SKU: MHD112B-058-NP1-BN
Price: 882.00 USD
Availability: InStock

MHD Synchronous Motors

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The synchronous motor R911285991 (MHD112B-058-NP1-BN) by Bosch Rexroth is designed with a keyed shaft conforming to DIN 6885-1 and features a liquid-cooled housing. This motor outputs 3.2 kW at 60K, delivers 28.0 Nm of continuous standstill torque, and integrates thermal monitoring for overload protection. It includes a holding brake rated at 22.0 Nm and relies on digital servo feedback (HSF) for relative position detection. The motor supports both vertical and horizontal installation orientations and employs electronic commutation, allowing for continuous start-stop operation. Mounting requires 4 x M12 screws torqued to 87 Nm on a 192 mm flange with a 130 mm centering diameter. Power is connected via an output connector oriented to side B.

Technical Specifications

Keyway Shaft Design
Compliant with DIN 6885-1

Rated Power
3.2kW at 60K

Torque to Inertia Mass Ratio
High

Storage and Transport Temperature
-20°C to 80°C

Storage and Transportation Requirements
Keep Dry, No Dropping or Tipping

Installation
Vertical and Horizontal Installations

Voltage Constant
89V/1000min-1

Winding Resistance
0.86 Ohms

Torque Constant
0.98Nm/A at 20°C

Brake
Functioning must be checked prior to installation

Delivery
Available Worldwide

Frequently Asked Questions

What type of encoder feedback does the MHD112B-058-NP1-BN offer during motion control tasks?

The motor features a digital HSF encoder with relative position detection. This requires homing after power cycles to restore accurate positional tracking.

How is torque performance handled during non-rotational load holding?

The motor delivers 28.0 Nm continuous torque at standstill. This supports static force applications without compromising positional stability.

How does the motor ensure reliable load retention in vertical motion systems?

A 22.0 Nm holding brake locks the shaft during power-off states. This adds safety by preventing unintended movement or load drift.

What design element ensures stable mechanical engagement in reversing-load conditions?

The keyed shaft with shaft seal provides rigid torque transfer and ingress protection. It maintains connection integrity in dynamic environments.

Can this model support rear-side cable routing in tight control panel configurations?

Its side B power connector allows direct, rear-facing cable exit. This simplifies wiring in machines with rear-mounted drives or limited front access.

Common Misspellings

MHD112B058NP1BN

MHD112B 058 NP1 BN

mhd112b-058-np1-bn

Internal Product Review

The Rexroth Indramat MHD112B-058-NP1-BN servo motor features a keyed shaft with shaft seal for secure power transmission. It offers liquid cooling, 28.0 Nm standstill torque, a 22.0 Nm holding brake, and HSF encoder with relative position feedback. It is perfectly suited for robotics, packaging, and automated assembly lines.