Hello,

i am using solidworks 2015.
I have created 2 gears and a belt. and i have a chain all around the gear following the belt.

the 2 gears are at ration 1:1 and are moving perfectly and sycronized wich each other

I am trying to move the chain by rotating the gear.
so when i am roatating the gear the chain will go all aroud following the belt.
i treid to follow that tutorial: Tech Tip: SOLIDWORKS 2015 Tutorial - Advancing Advanced & Mechanical Mates - YouTube

when the link that i mated to the gear is close to the gear it works good.but as the link going away from the gear the ration between them becoming worse.