I have a 20" Rockwell 28-365 variable speed bandsaw with a ball bearing driven drive pulley with a Reeves vari speed. I am sure many here have the same saw. It is undergoing a restoration and I will post some pics in the near future when it is complete. The question I have is when setting up the drive pulley ball bearing drive what is the clearance between the ball holder and the pulley? How much tension should be on the springs to slip when starting (if any) or if the blade is jammed to a sudden stop? Take a look at the pics and you will see what I am asking about.