Timing pulleys and gears

This category includes toothed mechanical components designed for power transmission or for use with timing belts in synchronous transport systems. To ensure the highest standards of quality, all our pulleys are manufactured exclusively in Italy using certified materials. These components are widely used across various industries, including automatic machinery, packaging, industrial automation, machine tools, woodworking, glass processing, paper and textile industries, as well as in the food, pharmaceutical, cosmetic, and beverage sectors.

Pulleys for Timing Belts

When designing a transport system based on timing belts, it is essential to produce corresponding pulleys with exceptional precision—something that standard, off-the-shelf components often cannot guarantee. To ensure top-level quality and perfect alignment with the belt teeth, our production process begins with CNC machining centres and lathes to carry out the initial shaping. The final step involves cutting the toothing, using the previously machined surfaces as precise reference points to guarantee optimal alignment and performance.

Self-Guiding Pulleys

When flanges are used, product residues can accumulate in the gap between the belt and the flange, potentially disrupting the system’s operation. A practical and cost-effective solution is to opt for a belt with a trapezoidal profile. When paired with pulleys featuring a central groove, this configuration allows for self-guiding of the belt, eliminating the need for side flanges.

For applications involving small pitch diameters, the pulley can be manufactured in two sections, with a spoked disc inserted between them. This central disc serves as a guide by maintaining the belt’s alignment through a dedicated channel.

Cast Pulleys

When the number of pulleys required is significant, producing aluminium castings using custom moulds becomes an optimal solution—ensuring excellent technical performance while maintaining an advantageous price-quality ratio. We already have a wide selection of rough castings available, including diameters up to 800 mm. To speed up the process and reduce costs, we recommend sending us the drawing of the pulley you wish to create so we can verify whether a compatible casting geometry is already in stock.

Our timing pulleys are manufactured using certified hobbing tools, available both with standard and zero backlash, and can be produced in the following pitches: AT, T, XL, L, H, XH, HTD, RPP, and ATP.

Flanged Pulleys

The most commonly used method to secure a timing belt on a pulley involves the use of flanges, which can either be press-fitted or attached using threaded holes.

Press-fitted flanges represent the most economical solution, though they offer a lower guarantee in terms of long-term retention. On the other hand, flanges fastened with screws via pre-drilled and threaded holes in the pulley provide a more secure and reliable hold, even over extended periods of operation. This method also enables the use of thicker flanges when necessary, offering greater stability in demanding applications.

Gears

In addition to timing belt pulleys, we also supply gears. Thanks to our generators for metric module toothing (from 0.5 to 6 mm), we can manufacture gear wheels—either full or sector-shaped—with straight or helical teeth.

We produce toothed components using a wide range of commercially available materials, including plastics such as POM, PA6, PEEK, Teflon, and Nylon, as well as metals like C45 steel, 39NiCrMo4, brass, bronze, aluminium, carbon steel, and stainless steel. All materials are certified to ensure full traceability and compliance with technical specifications provided in customer drawings.