N12M4LR

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The N12M4LR motor boasts a peak torque of 1522 oz-in, a continuous torque of 131 oz-in at 25°C, a rated speed of 3000 RPM, and a weight of 5.3 lbs. Part of the ServoDisc Pancake DC Motors manufactured by Kollmorgen, it operates with a rated power output of 291 watts and a rated terminal voltage of 26 volts.

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Product Description:

N12M4LR is a Kollmorgen low profile motor. It is part of the ServoDisc N series that are compatible with amplifiers from the KXA Plus and EM19 product lines. Features of the motor include neodymium magnet technology, fast acceleration, high throughput, long brush life, low RFI and zero cogging. Operators can order the motor with or without a tachometer, optical encoder, or brake. A tachometer is not available on the N12M4LR motor. This motor features a unique flat disc armature design, which significantly reduces inertia and eliminates cogging, allowing for rapid acceleration and smooth operation. The peak acceleration rate for the motor is 80.1 kRad/s2. Its mechanical time constant is 4.2 milliseconds and the electrical time constant is less than 0.27 milliseconds. The motor delivers continuous output power at a rate of 6.4 kW/s.

Mechanical specifications of this highly compact motor include 1.34 kg cm2 moment of inertia, 3.9 N-cm static friction torque, 2.4 kilograms>. weight, 5.5 inches diameter and 1.07 inches length. The motor offers exceptional performance in a compact package. Its peak output torque is 1075 N-cm. Speed ratings include <<3000 RPM nominal speed and 6000 RPM peak recommended speed. Continuous torque ratings include 93 N-cm at 25 degrees Celsius and 83 N-cm at 40 degrees Celsius. The motor operates without cogging and has zero cogging torque. It continuous output torque at stall is 96 N-cm. The N12M4LR motor is a highly specialized piece of industrial equipment. Improper handing can result in equipment damage and injury to personnel. Incorrect installation can lead to performance degradation and reduced reliability. To prevent these problems, Kollmorgen recommends professional installation and operation of the Kollmorgen compact industrial motor.

Cogging Torque
0 oz-in
Diameter
111.0 mm
Length
23.9 mm
Mechanical Time Constant
4.20 ms
Moment Of Inertia
0.0190 oz-in-sec²
Peak Current
159 Amps
Peak Torque
1522 oz-in / 1075 N-cm
Rated Continuous Current
14.80 Amps
Rated Continuous Torque @ 25°c
131 oz-in / 93 N-cm
Rated Continuous Torque @ 40°c
117 oz-in / 83 N-cm
Rated Power Output
291 Watts
Rated Speed
3000 RPM
Rated Terminal Voltage
26.0 Volts
Thermal Resistance At Rated Speed
1.40 °C/Watt
Weight
5.3 lbs / 2.4 kg

Frequently Asked Questions about N12M4LR:

Q: Does the motor feature a tachometer?

A: A tachometer is not installed on the motor.

Q: What is the motor weight?

A: Weight of the servo motor is 2.5 kg.

Q: What is the design of the motor armature?

A: The motor armature has a flat disc design and is ironless.

Q: What is the peak torque output?

A: The peak torque output is 1075 N-cm.

Q: What is the power output rating?

A: Power output of the motor is 291 Watts.


Internal Product Review

  • ‘‘N12M4LR is a ultra thin industrial motor. It uses neodymium magnets for exceptional performance. The motor is an optimal solution for applications that requires fast acceleration and good speed control. ’’

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