The TB Wood's 443B 3-Groove QD Bushed V-Belt Sheave is engineered for optimal performance in power transmission systems. Designed to accommodate A (4L) cross-section V-belts, this sheave features a 4-3/4" outside diameter and a 2-1/2" face width, ensuring efficient belt engagement and minimal slippage. The QD (Quick Detachable) bushing system allows for straightforward installation and removal, reducing downtime during maintenance. Constructed from high-quality cast iron, the 443B sheave offers durability and resistance to wear, extending the service life of your equipment. Its three-groove design enables the use of multiple belts, distributing the load evenly and enhancing system reliability. This sheave is compatible with TB Wood's Sure-Grip QD-type bushings, providing a secure and precise fit. By integrating the TB Wood's 443B sheave into your machinery, you can achieve consistent power transmission, reduced maintenance intervals, and improved operational efficiency.