High-Precision Timing Pulleys & Toothed Belt Pulley Solutions
MICROingranaggi is among the leading manufacturers of custom timing pulleys for high-performance transmission systems, serving both European and international markets, with a strong focus on the United States. Thanks to a state-of-the-art machine park and the use of carbide tooling, we produce timing pulleys that combine micrometric precision with operational reliability, transforming complex designs into fully finished, ready-to-assemble components.
Timing pulley manufacturing: profiles and dimensions
We specialize in the production of timing pulleys with diameters ranging from a minimum of 4 mm up to 120 mm, with maximum lengths of 140 mm. Our hobbing technology allows us to handle a wide variety of standards and special profiles commonly used in both EU and US applications:
- Metric pitches: T2.5, T5, T10 and AT profiles (AT3, AT5, AT10)
- Inch pitches: MXL, XL, L, widely adopted in the US market
- High torque profiles: HTD (3M, 5M, 8M) and GT (Gates Tooth), extensively used in North American high-performance transmissions
- Customizations: Timing pulleys with lightening holes, bearing seats, keyways, and integrated flanges
Advanced materials and certified quality control
Unlike standard timing pulley manufacturers, we ensure consistent precision across every batch, from prototype to full production, meeting the expectations of both European and US industrial standards.
- Materials: We competitively machine aluminum (with hard anodizing), stainless steel, brass, and engineering polymers such as POM, Delrin, and PEEK for special or low-noise applications
- Precision: Each timing pulley can be certified using Klingelnberg P26 gear measuring machines and Zeiss measuring systems. This allows us to maintain tolerances in the range of 3–4 microns and ensure a perfect tooth profile, significantly reducing belt wear in demanding applications
From prototyping to mass production
Thanks to the synergy between our engineering department and workshop, we support customers at every stage, including international clients across Europe and the United States:
- Rapid prototyping: 3D printing for fit and clearance tests, plus functional samples machined from solid
- Project management: We supply fully finished components, including heat and surface treatments
- Flexibility: We efficiently handle both single prototype units and large-scale production runs for global supply chains