R911290864 (MHD115B-024-PG0-AN)

Name: R911290864 (MHD115B-024-PG0-AN)
Brand: Indramat Motors
SKU: MHD115B-024-PG0-AN
Price: 434.00 USD
Availability: InStock

MHD Synchronous Motors

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The Bosch Rexroth MHD synchronous motor, MPN R911290864 (MHD115B-024-PG0-AN), is a low-inertia, electronically commutated servo motor with a frame size of 115 and motor length B. It features digital servo feedback with an integrated multiturn absolute encoder supporting position detection beyond 4096 revolutions. The motor has a plain shaft with a shaft seal and does not include a holding brake. It utilizes liquid cooling, supports self-cooling via natural convection, and is compatible with blower units. The centering diameter is 180 mm and the flange size is 192 mm. The motor operates at up to 4,000 rpm, provides 50.0 Nm continuous torque at standstill, and has a winding resistance of 0.36 Ohms at 20°C with a torque constant of 1.7 Nm/A. Mass is 55 kg. Power connection is to side A via output connector. Optimal storage conditions are -20°C to +80°C.

Technical Specifications

MHD Motor Producer
Bosch Rexroth

Mass
55kg

Max Speed
4000 revolutions per minute

Frame Size
115

Motor Length
B

Winding Resistance at 20°C
0.36 Ohms

Torque Constant at 20°C
1.7Nm/A

Storage Temperature
-20°C to +80°C

Digital Servo Feedback
Integrated Multiturn Absolute Encoder

Motor Installation
Any Possible Position

Torque to Inertia Mass Ratio
High Dynamics

Frequently Asked Questions

Why is a plain shaft preferred in certain drive setups?

The plain shaft offers direct coupling with minimal mechanical play. The smooth transfer of torque benefits systems needing accurate and consistent motion.

How does digital servo feedback improve motor control response?

The digital feedback sends position data instantly to the drive controller. The communication enhances real-time motion correction and control precision.

What role does the shaft seal play in maintaining motor reliability?

The shaft seal keeps dust and liquid away from internal parts. The sealing ensures consistent operation and longer service life in demanding conditions.

How does the power connector on side A help during installation?

The connector placement allows easy cable routing inside compact machines. The side access design saves setup time and improves space management.

Why is liquid cooling preferred over air cooling in continuous duty use?

The liquid cooling dissipates heat faster and more evenly. The system supports high torque output without temperature-related performance loss.

Common Misspellings

MHD115B024PG0AN

MHD115B 024 PG0 AN

mhd115b-024-pg0-an

Internal Product Review

The MHD115B-024-PG0-AN motor from Bosch uses liquid cooling and delivers 50 Nm torque with absolute feedback exceeding 4096 revolutions. It provides reliable motion control for packaging machines and CNC systems where precise multi-axis synchronization and smooth shaft operation without a holding brake are vital to consistent industrial automation.