Timing Pulleys and Bar Stock

On shop.atti.it, ATTI offers V-Belt Pulleys for classic and narrow belts, metric toothed pulleys (T, AT, and HTD profiles) and inch sizes, toothed bars for machining, and Berges variable pulleys. The V-Belt Pulleys are available for narrow sections SPZ, SPA, SPB, and SPC and the corresponding classic versions, with one or more grooves, mostly designed for tapered bushings. Each pulley must be chosen based on the belt it works with: section for the V-Belt Pulleys, profile and pitch for the toothed ones.

To choose a V-Belt Pulley, four pieces of information are needed: the belt section (for example SPZ, SPA, SPB or the classic Z, A, B), the number of grooves, which indicates how many belts operate in parallel, the pitch diameter, which along with the diameter of the driven pulley determines the transmission ratio, and the type of mounting on the shaft: with a taper bushing, which is easier to install and remove, or with a pilot hole to be machined to the diameter of the shaft. On shop.atti.it, you can filter pulleys by section, number of grooves, and diameter.

Variable pulleys (or pulleys with variable diameters) allow for the modification of the pitch diameter upon which the V-Belt operates and, consequently, adjust the speed of the driven machine without having to replace the motor or the pulley.

They are used in V-Belt drives where it is necessary to adapt the operating speed to the application's requirements.

They find application in numerous industrial sectors, including bottling and packaging machines, conveyor belts, agricultural and textile machinery, pumps, food processing plants, construction machinery, agitators, mixers, and machine tools.

On shop.atti.it, you can consult the range of variable pulleys available in the Berges catalog.