The TB Wood's 1VP65118 6.5" OD 1-1/8" Bore Variable Pitch V-Belt Pulley is engineered to provide precise belt tensioning and variable speed control in industrial applications. Designed for use with 4L, A, 5L, B, and 5V belt sections, this pulley offers a versatile solution for various drive systems. Its fixed bore accommodates a 1-1/8" shaft diameter, ensuring a secure fit and reliable operation. The pulley features a single groove and a variable pitch design, allowing for adjustments in belt pitch diameter from 4.8" to 6.4", depending on the belt type used. Constructed from durable cast iron, the 1VP65118 is built to withstand demanding environments, offering longevity and consistent performance. The pulley is equipped with a keyway measuring 1/4" x 1/8", facilitating easy installation and maintenance. This design minimizes downtime and enhances operational efficiency, making it a valuable component in machinery requiring variable speed drives. By enabling precise speed adjustments and reducing the need for multiple pulleys, the 1VP65118 contributes to streamlined operations and cost-effective maintenance.