Here's my Booster bearing, cut down from the back and fitted into my original BP.
I think Andres is correct when he suggests the front of the 'cone' area was cut down, showing the larger flat front face inside.
I'm going to be using this on my original parts saber, once this is cut down a little more.
This took Russ five minutes on his lathe.
I know a lot of you guys believe this bearing part was used inside the clamp, the cotter pin wire protruding from the clamp.
I'd rather go down the route of using this component for a visible part of the saber, rather than an estimated best guess as to what's not seen inside the clamp.
I still believe there's a cone in there - and I think these pics bear this out - plus these factors make me believe this part was used.
1. The interior markings. The build-up of whatever it is causing the banding inside the cone.
2. The position of the hole in these comparisions.
3. The part *could* have been on hand for the prop builder if he had a complete booster. The chances are it was and he did, considering the wealth of original firearms used in the production.