Why Is The Number Of Convolutions In A Bellows Coupling Important?

Release Date: November 7, 2019

How exactly do the bellows in a bellows coupling work? The answer may affect how you choose one for your application.

Transcript

Location: San Marcos, CA
Answer: It can determine the stiffness and torque capacity of the coupling. As the manufacturer adds convolutions in the bellows the stiffness and torque capacity can decrease. Bellows are made of thin sheets of metal called plies. The thickness and number of plies used combined with the number of convolutions gives the coupling its rigidity. Think of the number of plies like sheets of paper. It’s easy to rip one piece of paper. Stack them up into something like a phone book and it’s incredibly difficult. Adding plies has the same effect. As you add more plies it adds rigidity while also making the coupling stiffer and giving it less misalignment capability.

You Might Also Be Interested In:

Bellows Couplings - The full selection of Ruland bellows couplings