Pulleys and Accessories

Pulleys are key mechanical elements that ensure the transfer of power between the driving and driven shafts, and their geometry must be precisely tailored to the specific type of belt. V-belt pulleys use trapezoidal grooves, which can be classic or adapted for narrow-profile designs, while toothed pulleys with metric or imperial profiles provide synchronous transfer without slipping. In the case of ribbed belts (Poly-V), pulleys are equipped with multiple parallel longitudinal grooves, allowing for a larger contact surface and even distribution of forces. Most modern pulleys are made from gray cast iron, steel, or aluminum and allow for mounting using taper lock bushes, simplifying installation and ensuring secure attachment to the shaft without play.

Systems with taper lock bushes represent a modern and standardized method of attaching pulleys, gears, and couplings to drive shafts without the need for prior machining of holes. These are conical mechanical elements that create a strong torsional connection around the entire circumference of the shaft by tightening screws, ensuring high concentricity and complete fixation without play, even under greater loads and shocks. The advantage of this system is extremely easy assembly and disassembly using standard tools, as the bush allows for easy sliding off the shaft when the screws are loosened, without damaging the mechanical components. Taper lock bushes are available in a wide range of metric and imperial hole sizes with pre-made grooves for pins, allowing for quick adjustment to different shaft diameters and reducing the need for extensive stock of specific pulleys.