R911309929 (MHD115C-059-NP0-AA)

MHD Synchronous Motors

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The R911309929 (MHD115C-059-NP0-AA) is a Bosch Rexroth servo motor from the MHD series, featuring a keyed shaft design with a seal, a centering diameter of 180 mm, and a 192 mm flange size. This model has a continuous standstill torque of 70.0 Nm, employs natural convection housing cooling, and is equipped with a digital servo feedback encoder (HSF) that enables relative position detection with system accuracy of ±0.5 angular minutes. The encoder facilitates quick motor initialization. The motor operates without a holding brake, integrates an output connector for side A power connection, uses grease-lubricated bearings rated for a 30,000-hour service life, and is enclosed in an IP65-rated housing for environmental protection.

Technical Specifications

Motor Type
Servo Motor

Installation Orientation
Any

Feedback System
Digital Servo

System Accuracy
±0.5 Angular Minutes

Lubrication
Grease-Lubricated

Bearing Service Life
30,000 Operating Hours

Housing Enclosure
Completely Closed (IP 65)

Cooling Method
Natural Convection and Surface Cooling

Overheat Protection
Temperature Senso

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Internal Product Review

The MHD115C-059-NP0-AA keeps installation relatively simple, with a compact flange-mounted design> However, proper air flow should be ensured when mounting to enhance thermal stability.