U12M4A

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The U12M4A motor weighs 8.0 lbs and has a rated continuous current of 7.0 Amps. Manufactured by Kollmorgen, it is part of the ServoDisc Pancake DC Motors with a rated power output of 223 Watts. The motor achieves a peak torque of 1014 oz-in and a moment of inertia of 0.0080 oz-in-sec².

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Product Description:

The U12M4A motor introduced by Kollmorgen has no integrated tachometer. This motor has a shaft diameter of 0.4995 inches. The product has a lightweight armature core. This device features an axially aligned magnetic field. The unit is noted for its favorable torque-to-inertia ratio. It delivers increased profitability in incremental motion applications. This motor must be operated by people with the relevant expertise after reading its documentation.

The product is characterized by low inductance. This device has a distinct physical construction. The unit renders excellent performance in continuous speed applications. It has a short cycle time. This motor produces a torque that is perpendicular to the current and magnetic field. The product is noted for its high throughput. This device has zero cogging. The unit should be operated without exceeding the permissible axial and radial forces. It has a peak torque of 716 Ncm.

This motor produces a high electric voltage during its operation. The product features a pilot diameter of 4.75 inches with +/-0.005 inches tolerance. This device depicts a length of 53.3 mm. The unit can be cleaned only on the exterior by the user. Its live connecting points may cause shock if they are touched. This motor depicts a viscose damping constant of 0.9 Ncm/kRPM. The product has a nameplate with its type designation and key technical details. This device is generally operated where high performance is of prime concern. The unit has very fast acceleration and deceleration because of the low inertia property. It portrays a rated torque of 100 oz-in. at 25 °C. This motor should not be operated in areas where there is a risk of an explosion or there are always extreme temperature fluctuations.

Cogging Torque
0 oz-in
Continuous Stall Current
6.3 Amps
Continuous Stall Torque
93 oz-in (66 N-cm)
Diameter
5.50 in (139.7 mm)
Maximum Recommended Speed
6000 RPM
Moment Of Inertia
0.0080 oz-in-sec² (0.56 kg-m²)
Peak Current
65 Amps
Peak Torque
1014 oz-in (716 N-cm)
Rated Continuous Current
7.0 Amps
Rated Continuous Torque @ 25°c
100 oz-in (71 N-cm)
Rated Continuous Torque @ 40°c
90 oz-in (64 N-cm)
Rated Power Output
223 Watts
Rated Speed
3000 RPM
Rated Terminal Voltage
46.0 Volts
Weight
8.0 lbs (3.6 kg)

Frequently Asked Questions about U12M4A:

Q: What is the rated speed of the U12M4A motor?

A: The U12M4A motor portrays a rated speed of 3000 RPM.

Q: What is the cogging torque of the U12M4A motor?

A: The cogging torque of the U12M4A motor is 0 oz.-in.

Q: What is the continuous stall current of the U12M4A motor?

A: The continuous stall current of the U12M4A motor is 6.3 A.

Q: Why does the U12M4A motor have precision control of speed?

A: The U12M4A motor has precision control of speed because of its large torsional stiffness.

Q: Why is there no cogging in the U12M4A motor?

A: There is no cogging in the U12M4A motor because of the low inertia and ironless armature.


Internal Product Review

  • ‘‘The U12M4A motor has high acceleration control. It features less air gap between its magnets. This motor depicts a small and lightweight design. ’’

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