Vacuum Belt Purchasing Guide

Vacuum cleaner system belts handover power from a vacuum's motor to its brush roller. Brush rollers are also referred to "agitator brushes," So, vacuum belts are sometimes called "agitator belts." Although a vacuum's brush roller does not have to be in operation for a vacuum to create suction, having a healthy, properly matched belt in a vacuum is very crucial to the cleaning ability of the vacuum.

best central vacuum hose kitAgitator brush systems are responsible for the huge majority of cleaning done by vacuums that integrate them into their design.

Brush rollers factually beat dust and debris out of carpet so the vacuum can collect it with its suction. Self-propelled vacuum models use a second belt to control their drive systems.

We point out the basics of vacuum belt types below and offer some suggestions for correctly matching replacement belts in any vacuum model.

Causes of Vacuum Belts Breakdown

  • Normal wear
  • The wrong belt installed
  • Inappropriate belt installation
  • An obstacle in the brush roller

Accurate belt replacement, installation, and careful vacuum use will prevent belts from breaking prematurely so that they can be changed at regular intervals.

Vacuum Belt Categories

The main types of vacuum belts are determined by their different shapes. As vacuum designs have enhanced over the years, new belt shapes have been developed to increase their durability and transfer power from the vacuum's motor.

Round Belts

Tube-shaped round vacuum belts are the oldest type still in use currently.

Stretched between a vacuum's motor and its brushroll, round belts use their elastic tension to stay properly positioned and transfer to power to the brush roller.

Replacement Period: about 3-6 months for non-commercial vacuums

Flat Belts

Flat vacuum belts are the most common form of the belts in use today.

Flat belts have more contact area to the motor shaft and the brush roller than round belts, making them more productive and slip-resistant.

Like round belts, flat belts fit firmly in their position, but they continue to stretch with time and vacuum use.

Most flat belts are manufactured with more robust synthetic materials that make them more durable than round belts.

Replacement Period: about 6-9 months for non-commercial vacuums

Cogged Belts

Best Central Vacuum HosesThese are also known as "geared" belts. Cogged vacuum belts have teeth along their inside side, which fit snugly into a sprocket on the brushroll.

This design enables the belt to transfer energy from the vacuum motor much more efficiently than older designs.

And because geared belts are not installed or held into place with tension, they stretch much more gradually than round and flat belts.

Replacement Period: about 1-2 years (non-commercial)


V-belts make a "V" shape as their width tapers in toward their inner part. They are very similar to the types of belts commonly used in lawnmowers and other small engine machines.

Like geared belts, v-belts advance upon previous belt styles by increasing the contact area between the belt and the brush rollers.

Specially shaped v-belts suite into a matching groove in their brushrolls, creating three contact surfaces. Like cogged belts, v-belts are not held into place with tension, and they are often reinforced with more strengthening materials.

Replacement Period: about 1-2 years for non-commercial vacuums.

T Vacuum Belt

As with any other tool or machine part replacement, getting an accurate matching vacuum belt is critical to the performance of the vacuum. Every vacuum belt design specification and detail is engineered to provide the right amount of tension and power to its matching model. Even the small variances between similar but not exactly matching belts can sharply affect vacuum performance.

Purchase Vacuum Parts

Want vacuum parts? We'd love to assist you in finding the one you need. Choose from our huge assortment of vacuum cleaner belts and accessories online, and get it conveniently delivered for you together with replacement guidelines.

References and Resources