• July 6, 2022

What Does Foot-pound Mean?

What does foot-pound mean? : a unit of work equal to the work done by a force of one pound acting through a distance of one foot in the direction of the force.

How do you measure foot-pounds?

Weigh and object, such as a 2-pound weight, and multiply it by the number of feet you lift it off of the ground, such as 3 feet, to calculate that you used 6 foot-pounds of energy. If you took two seconds to lift the weight, you used 3 foot-pounds per second.

What is the difference between pound feet and foot-pounds?

The “pound-foot” (lb-ft) is a unit of torque and a vector measurement that is created by one pound of force acting on a one foot lever. The “foot-pound” (or more accurately, “foot-pound-force”), on the other hand, is a measurement of work.

How much force is a foot-pound?

As a unit of torque, one foot-pound is the torque created by one pound force acting at a perpendicular distance of one foot from a pivot point. 1 foot-pound is equivalent to: 1.3558179483314004 newton metre (exactly)

Is torque lb/ft or ft-lb?

Torque is always measured in force at a radius. The correct measurement is lbf-ft or “pounds force foot”, which we shorten to lb-ft. The metric guys always have it right, when they express torque in terms of Nm, or Newton-meter.


Related faq for What Does Foot-pound Mean?


Is ft-lb a unit of energy?

A foot pound is a unit of energy, not to be confused with the pound foot, which is a measure of torque. The foot pound is a measure of a pound of force applied over one foot. This unit is rarely used now.


Why is it called foot-pounds?

-lb.) is a measurement of work. Work is the measurement of force over a given distance. Thus, 1 foot-pound is the energy required to lift a 1-pound object 1 foot of vertical distance. When James Watt determined that a horse could lift 550 pounds at a rate of 1 foot per second, he declared it 1 horsepower.


How do you measure foot-pounds without a torque wrench?


Is inch pounds same as foot pounds?

One foot-pound is equal to 12 inch-pounds. To convert your foot-pound measurement to inch-pounds, multiply your figure by 12.


What is considered good torque in a car?

Both horsepower and torque are measured to give shoppers a sense of the performance they might expect from their vehicle. Engines in mainstream cars and trucks typically generate 100 to 400 lb. -ft of torque.


What is a ft-lb of torque?

The unit of measure for torque that we all know, the "ft-lb," "lb-ft," or "foot-pound" is the amount of turning force applied to move one pound a distance of one foot around an axis at a radius of one foot.


Is pound force the same as pounds?

“Lbf” refers to the gravitational force placed by a matter on the Earth's surface, while “lb” deals with the measurement of force. A pound force equals the product of 1 pound and the gravitational field. “Lb” and “lbf” are basically similar with each other since they both involve the same force.


What is torque vs horsepower?

Torque, simply, is the ability of a vehicle to perform work — specifically, the twisting force applied by the crankshaft. Horsepower is how rapidly the vehicle can perform that work. For instance, a lightweight sports car that operates at high rpm may have high horsepower, but low torque.


What is a pound of energy?

A basic unit of energy or work in the FPS system, equal to the amount of work needed to raise a weight of one pound a distance of one foot (1.3558 joule): symbol, ft-lb. (physics) A unit of work done, or energy expended, when a force of one pound acts through a distance of one foot.


Is lb a force or mass?

In other contexts, the unit "pound" refers to a unit of mass. The international standard symbol for the pound as a unit of mass is lb. In the "engineering" systems (middle column), the weight of the mass unit (pound-mass) on Earth's surface is approximately equal to the force unit (pound-force).


How do you calculate ft lbs of torque?

One pound (force) = 4.448 222 newtons. This gives the conversion factor: One pound-foot = 1.35582 newton metres.

Pound-foot (torque)

pound-foot
Unit system British Gravitational System, English Engineering Units
Unit of Torque
Symbol lbf⋅ft or lb-ft
Conversions

How many HP is 9.5 ft lbs?

Torque 9.5 ft. -lb.


What are Slug units?

A slug is defined as the mass that is accelerated by 1 ft/s2 when a net force of one pound (lbf) is exerted on it. One slug is a mass equal to 32.1740 lb (14.59390 kg) based on standard gravity, the international foot, and the avoirdupois pound.


What is foot pounds to Newton meters?

This time, all you need to know is that 1 ft-lb is equivalent to 1.3558 Nm. This means that to convert from foot-pounds to newton-meters, you need to multiply the value you have by the factor of 1.3558.

How to convert ft-lbs to Nm?

Foot-pounds Newton-meters
100 ft-lbs 135.582 Nm

What happens if you dont use a torque wrench?

Too tight and something will break, it may be the thread on the bolt, or much worse the thread on in the hole. Bolts will also break, sometimes leaving a very hard to remove bit in your frame.


Do I really need a torque wrench for lawn mower blade?

Most mowers will not require using a torque wrench. The biggest benefit in using a torque wrench for the average mower will be not only to ensure you have the blade tight enough, but that you don't tighten it so much that you can't remove the bolt later. Blade bolts can tighten with use.


Do you really need a torque wrench?

If you plan to do any major work on your engine or on some major powertrain components, you absolutely need a torque wrench. Overtightening cylinder-head bolts, for instance, can easily cause expensive damage and catastrophic coolant loss. Too-tight exhaust manifold bolts can cause the manifold to crack.


How many inches is a pound?

1 inch = 2.54 cm 1 pound = 453.6 g 1 foot = 12 inches = 30.48 cm 1 stone = 14 pounds = 6.35 kg

feet inches pounds
6 10 6
6 11 7
8
9

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