This is the way to do it

[Mike Brubacher]

The following was sent to us by one of our international customers. The picture shows how the test media passes beneath the bearing seat and is pinched between washer and test fixture when the clamping nut is snugged up. Atop the bearing seat is a thrust bearing. This arrangement insures that test media cannot be over-tensioned when tightening the clamping nut. Thanks for the picture Chico!