A rod end bearing, also known as a heim joint or rose joint, is a mechanical articulating joint. Such joints are used on the ends of control rods, steering links, tie rods, or anywhere a precision articulating joint is required, and where a clevis end is unsuitable.

What is a heim joint used for?

Heim joints are commonly used for steering on buggies and race trucks because they can be found in much larger sizes than even “one ton” tie-rod ends. ... In addition to steering, they are commonly used in suspension links, throttle linkages, and other components that need to pivot and be adjustable in length.

Are Heim joints street legal?

No it's not legal.