Product Details

This apparatus is designed to study the frictional behavior between various belts and a steel pulley, allowing students to experimentally determine the coefficient of friction and verify the belt tension equation. It provides a practical method for analyzing how factors like lap angle, belt material, and profile influence the transmission of force and the prevention of slip. The unit is a wall-mounted setup featuring a pulley on low-friction ball bearings, with an adjustable mechanism that allows the wrap angle to be set from 0° to 180° in 30° increments. It includes a set of different belts and cords for comparison: flat belts made of leather and nylon, a standard V-belt, and a cable. Calibrated weights and hangers are used to apply precise tensions to the belt, enabling the measurement of the force ratio between the tight and slack sides. Its primary application is in mechanical engineering education for teaching power transmission and machine design. The key benefit is the hands-on investigation of belt drive mechanics, enabling students to quantify the grip of different belts, understand the mechanical advantage of a V-groove, and grasp the principles essential for designing efficient belt drives in industrial machinery.