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U9M4A by Kollmorgen

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The U9M4A is a ServoDisc Pancake DC Motor by Kollmorgen of the ServoDisc Pancake DC Motors series. It offers a Back Emf Constant ±10% of 4.85 V/KRPM, a torque constant of 6.56 oz-in/Amp, and a rated continuous torque of 39 oz-in at 25°C. With peak torque of 360 oz-in, peak current of 56 Amps, and a rated speed of 3000 RPM, this flat disc armature design delivers low inertia and rapid acceleration for industrial automation.

Technical Specifications

Back Emf Constant ± 10%
4.85 V/KRPM
Cogging Torque
0 oz-in
Continuous Stall Current
5.3 Amps
Continuous Stall Torque
31 oz-in, 22 N-cm
Maximum Recommended Speed
6000 RPM
Peak Current
56 Amps
Peak Torque
360 oz-in, 254 N-cm
Rated Continuous Current
6.8 Amps
Rated Continuous Torque @ 25°c
39 oz-in, 27 N-cm
Rated Continuous Torque @ 40°c
35 oz-in, 25 N-cm
Rated Power Output
86 Watts
Rated Speed
3000 RPM
Rated Terminal Voltage
26.8 Volts
Terminal Resistance ± 10%
1.310 Ohms
Torque Constant ± 10%
6.56 oz-in/Amp, 4.63 N-cm/Amp

Click here for product datasheet

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