On multi-V-belts drive

the different tensions are acting on every V belt between themselves

which are due to machining errors and manufacturing errors of every V belt and pulley groove

also leading to different kinds of wears of every V-belt.According to different cases

it may lead to virtuous wear and vicious wear.The interaction and relationship between tension distribution and wear of every V-belt are analyzed

by means of formulating the wear laws of V-belt.We conclude all cases of how to determine wear properties

taking realistic values of related argument

via diagram

explaining the essential factors of the virtuous wear and vicious wear.