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R911276749 (MHD041A-144-PG0-UN)

MHD Synchronous Motors

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The Rexroth Indramat's R911276749 (MHD041A-144-PG0-UN) servo motor, part of the MHD motor series, weighs 2.9kg and has a frame size of 82mm-flange with a 50mm centering diameter. The motor, categorized as size "041" and length category "A", has a continuous standstill torque of 1.35Nm. It possesses a characteristic speed of 7,000rpm, a rated speed of 4,000rpm under a DC link voltage of 540VDC, and employs conventional cooling. Its over-temperature ratings are set at 60k and 100k, with a permissible storage and transport temperature range of -20 to 80 degrees Celsius and a maximum permitted ambient temperature of 40 degrees Celsius. Without the holding brakes or fan unit, this high-efficiency, low-maintenance, high-precision control motor weighs 2.9Kg. The R911276749 (MHD041A-144-PG0-UN) motor utilizes digital servo feedback with an integrated multi-turn absolute encoder and a plain shaft with no holding brake. The output power and feedback connections can rotate 270 degrees, making it ideal for applications requiring high-precision positioning over a long range. Its moment of inertia is 0.88 x 10-4 kgm2, and it has a maximum speed of 7,500rpm. The motor possesses a theoretical maximum torque of 5.6Nm, a winding inductance of 13.5mH, and a peak current of 15.8A.

Technical Specifications

Mass
2.9 kg

Frame Size
82mm-flange

Centering Diameter
50mm

Size Category
041

Length Category
A

Continuous Torque at Standstill
1.35Nm

Characteristic Speed
7,000rpm

Rated Speed
4000rpm

DC Link Voltage
540VDC

Cooling Mechanism
Conventional

Motor over-temperature (60k)
60.00K

Motor over-temperature (100k)
100.00K

Frequency
200.00Hz

Torque at 60k over-temperature
0.68Nm

Voltage at 60k over-temperature
163.00V

Current at 60k over-temperature
1.29A

Performance at 60k over-temperature
0.36 kW

Torque at 100k over-temperature
0.89Nm

Voltage at 100k over-temperature
165.00V

Current at 100k over-temperature
1.68A

Performance at 100k over-temperature
0.48 kW

Servo Feedback
Integrated multi-turn absolute encoder

Shaft type
Plain

Brake type
No holding Brake

Orientation of Output power
270o

Moment of Inertia
0.88 x 10-4 kgm2

Maximum Speed
7,500rpm

Maximum Torque
5.6Nm

Winding Inductance
13.5mH

Peak Current
15.8A.

Common Misspellings

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the MHD041A-144-PG0-UN.
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