Toothed Belts

Timing belts are precision mechanical elements that enable synchronous transmission of torque and power without slip. Their operation is based on the positive engagement between the teeth of the belt and the grooves of the toothed pulley, ensuring a constant transmission ratio and precise positioning in drive systems. They are constructed from chloroprene (neoprene), rubber, or polyurethane, reinforced with strong tensile inserts made of fiberglass, steel, or aramid. These inserts provide high tensile strength, minimal stretch, and resistance to material fatigue.

Depending on the tooth shape, we distinguish various profiles tailored to specific drive requirements. Trapezoidal profiles are standard for classic synchronous transmissions, while rounded profiles, such as HTD and STD, allow for better force distribution on the tooth, quieter operation, and the transmission of greater powers at lower speeds. Polyurethane timing belts are often used in transport technology and linear systems, as they are extremely resistant to abrasion, chemicals, and oils, while also allowing for various upgrades, such as welding profiles or applying special coatings.

Systems with timing belts do not require lubrication, which reduces maintenance costs and allows for use in clean environments, such as the food and pharmaceutical industries. Due to their low mass and high flexibility, they enable high peripheral speeds and operation at efficiencies exceeding 98%. Proper tension setting of the belt and alignment of the pulleys is crucial during installation, as it directly affects the lifespan and reliability of the entire drive assembly.