R911296899 (MHD112A-058-NP0-AN)

Name: R911296899 (MHD112A-058-NP0-AN)
Brand: Indramat Motors
SKU: MHD112A-058-NP0-AN
Price: 759.00 USD
Availability: InStock

MHD Synchronous Motors

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The MPN R911296899 (MHD112A-058-NP0-AN) is a Bosch Rexroth synchronous servo motor designed for high operational dynamics and stability. This 112-size motor features a keyed shaft with shaft seal, liquid cooling, and a flange size of 192 mm with a centering diameter of 130 mm. It supports a continuous standstill torque of 15.0 Nm and a maximum torque of 54 Nm, with a peak load current of 77 A. The rotor's moment of inertia is 110 x 10-4 kgm². The unit operates at up to 4500 rpm, provides a torque constant of 0.98 Nm/A, and a voltage constant of 89 V/1000 rpm at 20°C. Equipped with digital servo feedback (HSF) for relative position detection, it has 4 pole pairs, a winding inductivity of 7.8 mH, and a power connection to side A with output connector. The housing meets IP65 standards. The total weight is 23 kg (without holding brake), and it is specified for operation in ambient temperatures of 0 to 40°C, with storage temperatures between -20 and +80°C. The winding code is 058 and motor length is A.

Technical Specifications

Product
Bosch Rexroth MHD Servo Motor

Current during peak load
77A

Moment of Inertia
110 x 10-4 kgm2

Theoretical maximum torque
54 Nm

Maximum speed
4500 RPM

Optimal operation temperature
0 - 40 degree Celsius

Enclosure Rating
IP 65

Weight
23 kg

Holding Brakes
Not included

Torque at 20 degree Celsius
0.98 Nm/A

Voltage constant
89 V/1000 rpm

Pole Pairs
4

Winding Inductivity
7.8 mH

Storage Temperature
-20 to +80 degree Celsius

Cooling
Liquid Cooling

Frequently Asked Questions

Why is digital servo feedback (HSF) used in this motor?

HSF feedback provides high-resolution position data for smooth synchronization in multi-axis systems. It minimizes control lag and enhances path accuracy in precision automation.

Can the MHD112A-058-NP0-AN operate without a holding brake?

Yes, it’s designed for low-inertia motion profiles where rapid start-stop cycles are critical. External mechanical locks can be used if holding torque at standstill is required.

How does flange size influence integration in machine assemblies?

A 192 mm flange provides a standardized mounting interface compatible with most industrial gear units. It simplifies retrofit or replacement in modular automation cells.

How does the encoder system improve control precision?

The relative digital encoder continuously monitors motor position for dynamic correction. This results in smoother transitions and reduced overshoot during acceleration phases.

What are common integration challenges with liquid-cooled servo motors?

Ensuring proper coolant routing and avoiding air pockets are critical for efficiency. Incorrect installation may cause uneven cooling, leading to premature component wear.

Common Misspellings

MHD112A058NP0AN

MHD112A 058 NP0 AN

mhd112a-058-np0-an

Internal Product Review

The Bosch Rexroth Indramat MHD112A-058-NP0-AN Servo Motor is designed for automation systems requiring precise control. With a 15.0 Nm continuous torque, keyed shaft, and digital servo feedback, it ensures smooth motion control. It is usually applied in robotics, CNC machinery, packaging, and printing industries.