Why does my vaccum belt maintain breaking? ...
I don't know what kind of vacuum you've get, so I can't give much surrounded by the way of backing. If it is a Hoover or Eureka upright which use the round belts (looks approaching a big O-ring) I have found that those often put them contained by with the 90 point twist surrounded by the wrong direction, so they often break or hang on to popping off. Check the bearing in the beater brush and construct certain they spin freely. Also check the runner depth setting, if there is too much friction between the brush and hearth rug sometimes that will wear out the belts fast.
If you don't hold something wound/caught in the vacuum, it could be a poorly designed vacuum cleaner.
I win better results after cutting sour the hair, string, cat toys, etc from the beater shaft.
Answers: the bearings on the beater public house may need oil or there is pelt preventing the beater bar from turning freely.