What does the Nm in torque mean, how does it compare to foot lbs?

Question

This is reguarding an electric pipe threader.

Answer 1

In physics, torque can informally be thought of as "rotational force". The SI units for Torque are newton metres although centinewton meters (cN·m), foot-pounds force (ft·lbf), inch pounds (lbf·in) and inch ounces (ozf·in) are also frequently used expressions of torque. The symbol for torque is τ, the Greek letter tau. The concept of torque, also called moment or couple, originated with the work of Archimedes on levers. The rotational analogues of force, mass, and acceleration are torque, moment of inertia, and angular acceleration respectively. The force applied to a lever, multiplied by its distance from the lever's fulcrum, is the torque. For example, a force of three newtons applied two metres from the fulcrum exerts the same torque as one newton applied six metres from the fulcrum. This assumes the force is in a direction at right angles to the straight lever.

More accurately, torque on a particle (which has the position r in some reference frame) is defined as the cross product:

torque=r * F

where F is the force acting on the particle, and r is the particle's position vector.
1 newton meter = 0.737 562 147 pound foot.

(The torque on a electric dipole with electric dipole moment p due to an electric field E is given by :
p*E)

Answer 2

The technical side of the number is that at full throttle and turning at the rpm for maximum torque (slightly slower than the peak hp) a pulley one foot in radius (2 ft in diameter) connected right to the engine could lift a 144 lb weight. What it means to you as a driver is... not very much. What matters is what they almost never show you, the torque curve. In any given gear, the torque curve is what you feel as acceleration as you go through the gear. For example, if you normally shift to second gear at an rpm where the torque is only 92 ft-lb, the acceleration at that rpm is only 2/3 of what it will be when you reach the torque peak. The flatter the torque curve in the range you normally drive the more power you feel.

Answer 3

This Site Might Help You.

RE:
What does the Nm in torque mean, how does it compare to foot lbs?
This is reguarding an electric pipe threader.

Answer 4

40 Nm To Ft Lbs

Answer 5

1 Nm = 0.73756215 foot lbs

Answer 6

Nm means one Newton force applied on an object from distance of 1 m from point of action. 1 lbf applied from 1 foot is a footpound. Nm is also a Joule and foot pound is .7376 Joule

Answer 7

Nm stands for Newton Metre. It is the metric system, whereas foot lbs is imperial. More european bureaucrats changing our rules and laws to serve their own purposes.

Answer 8

it means that you try to turn a leverage of 1 metre long applying a force of 1 Newton at the end.

in lbf (pound-force) * foot, it is
2.2 (lb/kg) / 9.81 (Gravity constant) * 3.281 (ft/m) = 0.736 lbf.ft

Answer 9

Nm means newton-meters.
Newton is a measure of force (as is a pound)
Meters is a measure of distance (as is foot)

In physics, torque can informally be thought of as "rotational force" or "angular force" which causes a change in rotational motion. This force is defined by linear force multiplied by a radius. The SI units for Torque are newton metres. In the U.S., foot-pounds force (ft·lbf) are also commonly encountered. The symbol for torque is τ, the Greek letter tau. The concept of torque, also called moment or couple, originated with the work of Archimedes on levers. The rotational analogues of force, mass, and acceleration are torque, moment of inertia, and angular acceleration respectively. The force applied to a lever, multiplied by its distance from the lever's fulcrum, is the torque. For example, a force of three newtons applied two metres from the fulcrum exerts the same torque as one newton applied six metres from the fulcrum. This assumes the force is in a direction at right angles to the straight lever.

--> http://en.wikipedia.org/wiki/Torque

1 newton = 0.224808943 pounds force
1 meter = 3.2808399 foot