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R911275384 (MKD090B-085-GG0-AN)

MKD Synchronous Motors

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The R911275384 (MKD090B-085-GG0-AN) is a synchronous AC servo motor engineered by Rexroth Indramat, designed for industrial automation applications requiring surface cooling. It features plain shaft design with shaft seal, operates without a holding brake, and uses resolver feedback (RSF) for relative position detection. Key technical parameters include a rated speed of 4000 min⁻¹, continuous torque at standstill of 12.0 Nm, nominal torque of 3.8 Nm, theoretical maximum torque of 43.5 Nm, and peak torque of 85 Nm. The motor supports a stall current of 15.4 A, peak current of 79.0 A, winding inductance of 5.8 mH, and rotor inertia of 0.0043 kg·m². It has a thermal time constant of 30 minutes, insulation class F, IP65 ingress protection, is specified for operation between 0–40°C, and is suitable for installation at altitudes up to 1,000 m. The unit weighs 14 kg and features connection direction Side A with a motor size of 090 and length B.

Technical Specifications

Cooling
Surface-Cooled

Rated Speed
4000 min-1

Rotor Inertia
0.0043 kgm2

Theoretical Maximum Torque
43.5 Nm

Thermal Time Constant
30 minutes

Motor Weight
14 kg

Protection Class
IP 65

Housing Coating
Prime Black a/w RAL 9005

Perm. Ambient Temp.
0 – 40 degrees Celsius

Setup Altitude
1,000 m above NN

Insulation Class
F

Peak Current
79.0 Amperes

Winding Inductance
5.8 mH

Nominal Torque Rating
12 Nm

Rated Current
12.4 Amperes

Rated Power
6.2 W

Rated Voltage
313 Volts

Frequency Rating
0.267 kHz

Winding Code
085

Flange Size
140mm

Centring Diameter
110 mm

Common Misspellings

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the MKD090B-085-GG0-AN.
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