Most new vacuum belts will be drastically different in size (usually smaller and wider) than the used belts. This is due to the fact that belts stretch and wear as they are used. Most new belts usually require the belt to be pulled and stretched into place.
Powerhead Belt for NuTone Model BN185 Central Vacuum Vac
The belt in your central vacuum unit needs to be replaced when you cannot feel the forward pull when the power head is on the carpet or when you feel the roller brush stall. Changing the power head belt can increase the efficiency of your power head, meaning you are able to get your home cleaner. As the power head belt becomes worn, the roller brush does not work well.
