The TB Wood's 3V531 Ultra-V sheave is engineered for optimal performance in V-belt drive systems. Constructed from fine grain, high tensile cast iron, this sheave ensures durability and longevity, effectively transmitting power while minimizing maintenance needs. Designed for use with 3V section belts, it features a single groove configuration, making it suitable for various industrial applications where space constraints are a concern. The sheave's 5.3-inch outside diameter and 0.6875-inch face width provide a compact yet efficient solution for power transmission. It requires a QD-type bushing, which is sold separately, allowing for easy installation and replacement. The 3V531 sheave is compatible with a range of bore sizes, accommodating bushings with bore diameters from 1/2 to 1-11/16 inches, offering flexibility to meet specific application requirements. Its keyway sizes vary depending on the bore diameter, ensuring a secure fit and reliable operation. This sheave is an ideal choice for applications requiring a compact, efficient, and durable solution for power transmission.