Poo´s belt drive

[Roadrider]

How do you tighten the belt an loosen it to get it on an off.

I would bet the top pulley is eccentric so you rotate it to tighten the belt up, essentially the hole in the pulley is not in the middle so when you rotate it will take up the slack in the system then you tighten the pulley down to keep it all in place.

Its hard to tell from the picture but it looks that way to me.

Are you saying the pulley is going to run out of round from the shaft center?
The whole shaft could be adjusted in an arc but not just a pulley.

 

[quebecmoutainrider]

This is not new polaris designed tech!!! Havent u guys heard of CMX??? They have had belt drives for years....where the heck have u guys been??

And for the guy who asked...i think u can get a belt drive for an apex from cmx.

didnt say it was by Polaris.......but I dont care who had it first...Love my rmk..

 

[Zakre]

How do you tighten the belt an loosen it to get it on an off.

I would bet the top pulley is eccentric so you rotate it to tighten the belt up, essentially the hole in the pulley is not in the middle so when you rotate it will take up the slack in the system then you tighten the pulley down to keep it all in place.

Its hard to tell from the picture but it looks that way to me.

Are you saying the pulley is going to run out of round from the shaft center?
The whole shaft could be adjusted in an arc but not just a pulley.

Yes thats the idea, the hole is no longer in the centre of the pulley once you rotate it. Its not much mind you so hard to see. Only the very outer portion of the bearing spins , the whole "centre" stays put allowing for the offset position.

Very common in automotive timing belt applications, mostly imports but the domestics are now using timing belts as well now.