The lateral movement in a tied universal expansion joint is achieved by having the bellows work together in angular rotation in order to obtain the correct lateral deflection.
![72" Diameter Tied Universal, Thick-wall Expansion Joint for a Sulfuric Acid Plant](https://usbellows.com/wp-content/uploads/2019/06/100684a1-300x179.jpg)
The lateral movement in a tied universal expansion joint is achieved by having the bellows work together in angular rotation in order to obtain the correct lateral deflection.