how do torque limiting extension bars work

how do torque limiting extension bars work

Torque sticks, also known as torque-limiting extension bars, come in sets, each in a different thickness and color. The thicker the stick, the higher the torque to the fastener. The amount of force on the bolt is managed by its design. The torque stick will twist, flex or bend at a certain torque foot/pound threshold.Oct 1, 2020

How does a torque limiter bar work?

Torque sticks, also known as torque-limiting extension bars, come in sets, each in a different thickness and color. The thicker the stick, the higher the torque to the fastener. The amount of force on the bolt is managed by its design. The torque stick will twist, flex or bend at a certain torque foot/pound threshold.Oct 1, 2020

What are torque extensions used for?

Torque sticks are used as extensions on air impact wrenches to stop applying torque when they reach a specified flex point. By choosing a torque stick with a lower torque than the wheel torque of your vehicle, you'll avoid over-torquing the wheel nuts and potentially damaging your wheel.Jul 9, 2020

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Do extensions limit torque?

extension bars will limit the effective output of the wrench to a preset amount of torque and anything above that will cause the extension will flex and absorb the extra impact. Each torque stick is machined to a specific maximum torque and then color coded for easy identification: yellow at 65 ft./lbs.

What does a torque limiter do?

Torque Limiters ensure that torque-based forces never exceed the set point. By limiting torque forces to what the rotational components can safely handle, these parts reduce mechanical overload and failures. They can work independently or in congruence with electronic sensors.Apr 3, 2020

Are torque extensions accurate?

It's important to note that while torque sticks can be a time-saver, they are not exact by nature. Most experts recommend using a torque stick to get to about 70% of the way there, then switching to a manual method to finish. The final torque specified value is best reached by using a calibrated torque wrench.Oct 1, 2020

Why should you never use a torque stick to remove a lug nut?

The reason for this, besides the wheel spinning and you never getting the lug loosened, is because you could torque the car over and cause it to fall off of the jack or jack stand. When on the ground, there is no worry about this.Jun 5, 2016

Why do we use a torque stick?

Torque sticks are used as extensions on air impact wrenches to stop applying torque when they reach a specified flex point. By choosing a torque stick with a lower torque than the wheel torque of your vehicle, you'll avoid over-torquing the wheel nuts and potentially damaging your wheel.Jul 9, 2020

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Can you use a torque stick with an electric impact?

Don't use torque sticks… use an actual torque wrench. Use torque sticks so you don't over-torque your nuts/bolts, and use a torque wrench to ensure you don't go under spec.Dec 2, 2020

Are torque sticks accurate?

Torque sticks are most accurate with pneumatic impact wrenches. Electric, whether corded or cordless, are just too fast [too many impacts per minute] for the sticks to work properly. Electric units operate at about 2700 to 3000+ impacts per minute. At this rate, the torque stick cannot flex properly.

Do extensions limit torque?

extension bars will limit the effective output of the wrench to a preset amount of torque and anything above that will cause the extension will flex and absorb the extra impact. Each torque stick is machined to a specific maximum torque and then color coded for easy identification: yellow at 65 ft./lbs.

Are torque sticks worth it?

It's important to note that while torque sticks can be a time-saver, they are not exact by nature. Most experts recommend using a torque stick to get to about 70% of the way there, then switching to a manual method to finish. The final torque specified value is best reached by using a calibrated torque wrench.Oct 1, 2020

Can you use torque sticks with a breaker bar?

Start by using a breaker bar (not a torque wrench) to break loose the wheel nuts. The long handle on a breaker bar allows you to generate a larger amount of torque with the same amount of force, enabling you to break loose very tight wheel nuts. Next, you'll need to select the proper torque stick.Jul 9, 2020

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