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A closer look at motor torque and torque multipliers

  • October 2004
  • Number of views: 3521
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Cyndi Nyberg 
EASA Technical Support Specialist 

The basic definition of torque is the measure of the force applied to produce rotational motion, usually measured in pound-feet or Newton-meters. Torque is determined by multiplying the applied force by the distance from the pivot point to the point where the force is applied. 
Torque = Force x Radius 

Figure 1 illustrates the relationship between force and torque.

Image

Obviously, if the force is in­creased, the torque will increase. If the magnitude of the force is main­tained, but the radius is increased, then the torque is also increased. 

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