R911307881 (MHD115A-058-PP0-BA)

Name: R911307881 (MHD115A-058-PP0-BA)
Brand: Indramat Motors
SKU: MHD115A-058-PP0-BA
Price: 750.00 USD
Availability: InStock

MHD Synchronous Motors

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The R911307881 (MHD115A-058-PP0-BA) is a Rexroth Indramat servo motor engineered for precise motion control in industrial applications. This MPN is characterized by a keyed shaft, integrated shaft seal, and a natural convection cooling system, with an option for external air blower cooling. The motor features digital servo feedback with a multiturn absolute encoder capable of position detection over more than 4096 revolutions. It provides a continuous torque at standstill of 32.0 Nm, with a torque constant of approximately 0.98 Nm/A and a voltage constant of around 89.1 V/krpm at 20°C. The motor does not include a holding brake, uses grease-lubricated ball bearings, and comes with a housing defined by an A-length, a centering diameter of 180 mm, and a flange size of 192 mm. The side B power connection uses an output connector, and the winding code is 058.

Technical Specifications

Product Type
Industrial Electric Motor

Housing Protection
Solid and Liquid Resistant

Temperature Regulation
Natural Convection, Option for External Air Blower

Feedback System
Digital Servo with Multiturn Absolute Encoder

Holding Brake
Not Included

Bearings
Grease-lubricated Ball Bearings

Operating Temperature
20 degrees Celsius

Torque Constant
0.98-newton meters per ampere

Voltage Constant
89.1 volts per minute

Frequently Asked Questions

What installation advantage does the output connector on side B provide?

The side B output connector allows clean cable routing in compact layouts. The arrangement simplifies maintenance and shortens installation time in control cabinets.

How does the absence of a holding brake influence system design?

The lack of a holding brake requires external mechanical restraint when power is off. The design reduces weight and inertia improving dynamic motion response.

What effect does the winding code 058 have on performance consistency?

The winding code 058 standardizes thermal and torque behavior across units. The uniform winding characteristics simplify drive parameter setup and system tuning.

How does the encoder support performance in multi axis synchronization?

The encoder delivers precise position feedback that enables tight synchronization between axes. The feedback stability ensures minimal phase lag during coordinated motion.

Why is the centering diameter important for mechanical alignment?

The centering diameter guarantees accurate alignment with attached gearboxes and fixtures. The correct fit minimizes vibration and prevents shaft misalignment during operation.

Common Misspellings

MHD115A058PP0BA

MHD115A 058 PP0 BA

mhd115a-058-pp0-ba

Internal Product Review

The MHD115A-058-PP0-BA servo motor from Bosch Rexroth Indramat has a natural convection cooling a keyed shaft and an absolute encoder for long cycle precision. With 32 Nm torque at standstill and sealed housing it serves effectively in filling machinery, packaging automation and synchronized drive applications.