The user can add a boot to protect the joint from unwanted contaminants and increase service life.
This single friction bearing universal joint is manufactured in the USA.These components are manufactured to tight tolerances using proprietary processes that ensure smooth operation and high misalignment accommodation up to 45°, which is a significant improvement over commodity style single universal joints.3 mm OD, Steel This Ruland single friction bearing universal joint has 20mm x 20mm bores, a 44.