Torque...How do you say it?
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From: SouthWest Ohio
Torque...How do you say it?
For as long as I can remember, torque was always refered-to in 'foot-pounds'. Now, every time I see a torque rating it's in 'pound-feet'.
Did something change while I was sleeping?
Is there a difference in the way torque is measured?
Is this PC run amuck?
Anybody have an answer?
MR
Did something change while I was sleeping?
Is there a difference in the way torque is measured?
Is this PC run amuck?
Anybody have an answer?
MR
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Joined: Sep 2003
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From: Elverson, PA
I've always said "foot-pounds", but it seems that either way may be used. From encyclopedia.com
torque
Related: Physics
in physics, that which tends to change the rate of rotation of a body; also called the moment of force . The torque produced by rotating parts of an electric motor or internal-combustion engine is often used as a measure of its ability to do useful work. The magnitude of the torque acting on a body is equal to the product of the force acting on the body and the distance from its point of application to the axis around which the body is free to rotate. Only the component of the force lying in the plane of rotation and perpendicular to the radius from the axis of rotation to the point of application contributes to the torque. This radius is called the moment arm, or lever arm. The net torque acting on a body is always equal to the product of the body's moment of inertia about its axis of rotation and its observed angular acceleration . If a body undergoes no angular acceleration, there is no net torque acting on it. Units of torque are units of force multiplied by units of distance, e.g., newton-meters, dyne-centimeters, and foot-pounds (or pound-feet).
torque
Related: Physics
in physics, that which tends to change the rate of rotation of a body; also called the moment of force . The torque produced by rotating parts of an electric motor or internal-combustion engine is often used as a measure of its ability to do useful work. The magnitude of the torque acting on a body is equal to the product of the force acting on the body and the distance from its point of application to the axis around which the body is free to rotate. Only the component of the force lying in the plane of rotation and perpendicular to the radius from the axis of rotation to the point of application contributes to the torque. This radius is called the moment arm, or lever arm. The net torque acting on a body is always equal to the product of the body's moment of inertia about its axis of rotation and its observed angular acceleration . If a body undergoes no angular acceleration, there is no net torque acting on it. Units of torque are units of force multiplied by units of distance, e.g., newton-meters, dyne-centimeters, and foot-pounds (or pound-feet).
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From: Washington DC
The two terms are interchangeable because foot and pound are both in the numerator of the units (unlike meters/second). Okay sorry bout the engineering talk...back to my calculator and hole in the wall.
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From: NH
Just what EddyG88 stated which is either term is correct. You can state it as ft-lb or lb-ft and it means the same thing.
Put 1lb or weight out to 1 foot and you have 1 ft-lb or 1 lb-ft because its still 1 pound of weight at a 1 foot distance…
Put 1lb or weight out to 1 foot and you have 1 ft-lb or 1 lb-ft because its still 1 pound of weight at a 1 foot distance…
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From: The LBC (Long Beach, CA)
In strict engineering terms:
Linear work is usually expressed as “foot pounds” of work.
Rotational work (torque) is usually expressed at “pound feet”.
The SAE generally - but not always - classifies torque as "pound-feet" when referring to engine output, as this is rotational.
Note that the terms aren't strictly interchangeable based on the plurality/singularity of the terms.
But in gerneral laymen's terms, they are often used interchangeably.
Linear work is usually expressed as “foot pounds” of work.
Rotational work (torque) is usually expressed at “pound feet”.
The SAE generally - but not always - classifies torque as "pound-feet" when referring to engine output, as this is rotational.
Note that the terms aren't strictly interchangeable based on the plurality/singularity of the terms.
But in gerneral laymen's terms, they are often used interchangeably.
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From: SouthWest Ohio
Originally posted by Jordan not Mike
In strict engineering terms:
Linear work is usually expressed as “foot pounds” of work.
Rotational work (torque) is usually expressed at “pound feet”.
The SAE generally - but not always - classifies torque as "pound-feet" when referring to engine output, as this is rotational.
Note that the terms aren't strictly interchangeable based on the plurality/singularity of the terms.
But in gerneral laymen's terms, they are often used interchangeably.
In strict engineering terms:
Linear work is usually expressed as “foot pounds” of work.
Rotational work (torque) is usually expressed at “pound feet”.
The SAE generally - but not always - classifies torque as "pound-feet" when referring to engine output, as this is rotational.
Note that the terms aren't strictly interchangeable based on the plurality/singularity of the terms.
But in gerneral laymen's terms, they are often used interchangeably.
Thanks for all the answers guys.
MR