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R911293928 (MHD115B-024-NG1-RA)

MHD Synchronous Motors

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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

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The R911293928 (MHD115B-024-NG1-RA) is a servo motor designed with a size-115 structure, featuring a flange size of 192 mm and a centering diameter of 180 mm. It utilizes a 38 mm plain shaft sealed for protection and supports both natural convection and surface cooling methods, with performance characteristics such as a continuous standstill torque of 50.0 Nm and a rated speed of 2000 RPM. The motor includes a digital servo feedback encoder (HSF, relative type) and is equipped with a 70 Nm holding brake. Power is connected on the right side of the IP65-rated housing, and the motor has a length 'B' at 431 mm, weighing approximately 40 kg.

Technical Specifications

Servo Feedback
Digital

Motor Frame Size
115

Motor Frame Length
B

Motor Housing Length
431mm

Shaft Type
Plain

Shaft Diameter
38mm

Shaft Seal
Included

Motor Shaft Available Length
80mm

Mount Type
Flange Mounted

Flange Size
192mm

Mounting Holes Diameter
14mm

Cooling Method
Natural Convection and Surface Cooling

Continuous Torque (60K Overtemperature)
50 Nm

Continuous Torque (100K Overtemperature)
57 Nm

Continuous Torque (Surface Cooling)
75 Nm

Rated Speed
2000 RPM

Holding Brake
70 Nm

Power Connector Location
Right Side

Protection Category
IP65

Weight
40kg

Installation Requirements
Trained Professional

Why is the sealed shaft important for machine reliability?

The sealed shaft blocks dust and moisture from entering the housing. The design helps extend bearing life and maintain torque output in tough environments.

How does the holding brake improve motion stability?

The brake holds the rotor firmly when power is off. The feature prevents unwanted motion in vertical load or precision hold applications.

What should be considered when wiring the right-side power connector?

The cable path should allow enough clearance to prevent stress on the joint. The setup makes maintenance simpler but needs space planning near the terminal.

How does the continuous torque at standstill affect machine load?

The torque value shows the motor’s ability to hold a static load under full current. The motor can maintain high holding force without thermal overload.

What does the 192 mm flange size contribute to mounting stability?

The flange provides a strong surface for bolting and alignment. The rigid fit reduces vibration and ensures reliable torque transfer.

MHD115B024NG1RA

MHD115B 024 NG1 RA

mhd115b-024-ng1-ra

Internal Product Review

The MHD115B-024-NG1-RA servo motor from Rexroth Indramat delivers 50 Nm continuous torque and 70 Nm holding brake torque through natural-convection cooling and digital HSF feedback. Its sealed plain shaft with right-side power connection fits industrial conveyors and bottling systems requiring repeatable motion accuracy and consistent rotational stability under continuous use.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MHD115B-024-NG1-RA.
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