Pretty quiet around these parts, everybody must be enjoying the great outdoors for this summer.

I originally put the cable arms together without using any modified washers just to see how it all came together. Now I am going to backtrack a bit and install the modified washers W1 as per the plans. This got me to thinking - what are they there for? Can't the bearing be in direct contact with the aluminum bars and work fine?

Probably a dumb question but I ask it any way.

Thanks, Dave