R911290881 (MHD115B-024-PP1-RA)

Name: R911290881 (MHD115B-024-PP1-RA)
Brand: Indramat Motors
SKU: MHD115B-024-PP1-RA
Price: 747.00 USD
Availability: InStock

MHD Synchronous Motors

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The Bosch Rexroth servo motor, MPN R911290881 (MHD115B-024-PP1-RA), is designed for integration with drive controllers and automation systems, offering digital servo feedback with an integrated absolute multiturn encoder for precise position detection (>4096 revolutions). It delivers a rated torque of 53.1 Nm at 32.5 A and uses a keyed shaft with a sealing ring for secure power transmission, supported by a 154 V/1000 min-1 voltage constant and a 1.7 Nm/A torque constant at 20°C. The unit features natural convection housing cooling, Class F insulation, IP65 protection, a 40-minute thermal time constant (surface cooling), and a 70 Nm holding brake operating at 1.29 A and 24 V. The motor measures a motor length B, a centering diameter of 180 mm, flange size of 192 mm, and weighs 40 kg.

Technical Specifications

Cooling
Surface cooling

Thermal time constant
40 minutes

Rated Torque
53.1 Nm

Current Consumption
32.5 A

Motor Feedback
Multiturn Encoder

Power Connection
Housing right side

Shaft Design
Shaft with Keyways

Voltage Constant
154 V/1000min-1

Torque Constant
1.7 Nm/A at 20 degrees Celsius

Protection Class
IP65

Insulation Class
F

Weight
40 Kg

Holding Brake Torque
70 Nm

Holding Brake Current
1.29 A

Holding Brake Voltage
24 volts

Rated Current
8.2 A

Rated Frequency
133 Hz

Winding Inductance
5.3 mH

Resistivity
0.36 ohms

Thermal Time Constant (Natural Cooling)
100 minutes

Fault and Malfunction Replacement
Yes

Frequently Asked Questions

Does the MHD115B-024-PP1-RA come with an integral encoder?

Yes, the MHD115B-024-PP1-RA comes equipped with an absolute encoder that monitors shaft position during operation. This enhances positioning accuracy by relaying real-time position data to the drive controller.

What is the centering diameter for the MHD115B-024-PP1-RA?

The MHD115B-024-PP1-RA features a centering diameter of 180 mm, ensuring standardized mounting dimensions that are compatible with standard mounting structures.

How much torque does the MHD115B-024-PP1-RA generate at standstill?

The MHD115B-024-PP1-RA generates 50.0 Nm torque at standstill, enabling it to hold position under load securely.

Is the MHD115B-024-PP1-RA designed for flange mounting?

Yes, the MHD115B-024-PP1-RA is an IM B5 type motor that is constructed to be mounted using a flange, making the installation process straightforward.

What operating range does the MHD115B-024-PP1-RA support?

The MHD115B-024-PP1-RA supports an operating range of 0 up to +45 ºC, allowing use in standard industry environments that fall within this range.

Common Misspellings

MHD115B024PP1RA

MHD115B 024 PP1 RA

mhd115b-024-pp1-ra

Internal Product Review

The MHD115B-024-PP1-RA offers advanced system performance with excellent positioning accuracy. Its front flange interface makes mounting straightforward. However, the right-side power connection can limit compatibility with some setups.