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Residual Torque

In applications where the specification requires a certain constant tightening torque, the residual torque should be checked periodically and retightened if necessary.

The residual torque is the parameter used to constantly maintain the integrity of a clamp or other connection in a variety of industrial applications.

At Mikalor, we understand the importance of this measurement for our clamps, which are designed to deliver exceptional performance and reliability.

 

What is the Residual Torque?

The residual torque is the value that allows a screw or bolt to rotate gently through a small angle after it has been tightened. This measurement helps to assess the tightening torque value of a bolt that has already been tightened without the need to retighten it, ensuring that the screw retains its preload and the assembly remains secure.

 

Measuring Residual Torque

To measure residual torque effectively, the following methods and tools are commonly used:

  • Breaking Torque Method: This involves using a digital torque wrench to apply torque and measure the point at which the screw starts to move. This method is preferred as it provides a clear indication of the residual torque.
  • Loosen-Tighten Method: For larger screws or special applications, the loosen-tighten method is the method more commonly used. This involves slightly loosening the screw and then re-tightening it to its original position, measuring the torque required for this process.

 

Ensuring Optimal Performance

At Mikalor we emphasise the importance of residual torque measurements to ensure optimum performance of our clamps, so make sure you check the breaking torque and free running torque factors to identify which materials or other variables affect the assembly of a clamp in a hose.

 

By understanding and applying this concept, we help our customers achieve secure and reliable connections in their applications.

Contact us for more information on our range of clamps.