Thread: Why flat belts and bandsaw blades don't fall off the wheels...

Tis amazing isn't it.

Crowned tires have a slight arc that the blade rides on.
Flat tires are just that flat.
Crowning of the tires normally involves sanding or grinding the arc into the tire. Roughly a 4" radius.
The crowning is done so the blade will track to the center of the tire. It is also done to true the tire. ( Remove high spots )
The better tires available today are supposedly more uniform in thickness, so should require a little less work to crown them.
There are several ways of doing it from using disc sanders to doing them on a lathe. If you Google it there will be hundreds of methods displayed.

Hmm, and here I was thinking the main reason is because the the top of the crown has a higer circumferential speed than the lower section of the crown.
And also the higher the speed the higer the centrifugal force applied to the blade while spinning. And as a blade is solid and not like a rubber band i'll stay with
the higher circumferential speed. As you know yrself.....if you spin a weight on a rope the faster you spin the closer to horizontal the weight becomes. looking
at the weight on the rope while spinning you will notice the weight also forms and act as you increase speed. Anyway just an idea

F = M*w^2*R ...Force(centrifugal)=Mass x omega^2 x Radius