A v-belt pulley, also known as a sheave, is a mechanical component used for power transmission in various applications. It is designed to work in conjunction with a v-belt, which is a flexible belt with a trapezoidal cross-section that fits into the grooves of the pulley.
The primary function of a
v-belt pulley is to transmit rotational motion and power between two shafts. When the v-belt is properly tensioned around the pulley, it creates friction and grips the sides of the pulley's groove, allowing the transfer of torque from the driving shaft to the driven shaft.
V-belt pulleys are commonly used in industrial machinery, automotive engines, agricultural equipment, HVAC systems, and other power transmission applications. They offer several advantages, including high efficiency, compact design, and the ability to handle high-speed operations.
These pulleys are manufactured using materials like cast iron, steel, aluminum, or plastics, depending on the specific application requirements. They are typically produced with different groove profiles (such as A, B, C, D, etc.) to accommodate varying belt sizes and power transmission capacities.
V-belt pulleys come in various configurations, including solid pulleys, split
pulleys, adjustable pulleys, and variable speed pulleys. Each type serves a specific purpose, such as adjusting belt tension, accommodating different shaft distances, or enabling speed variation.