The TB Wood's 2BK57 is a light-duty Type A Arm FHP sheave designed for efficient power transmission in fractional horsepower (FHP) applications. With an outside diameter of 5.45 inches and a face width of 1-3/4 inches, this sheave accommodates both A (4L) and B (5L) cross-section V-belts, providing versatility for various drive configurations. The 2BK57 features two grooves, allowing for dual-belt setups to distribute load evenly and enhance operational efficiency. It is equipped with TB Wood's Sure-Grip‚ quick detachable (QD‚) bushing, facilitating easy installation and removal without the need for special tools. This design ensures a secure fit comparable to a shrink fit, reducing maintenance time and downtime. Constructed from high-quality cast iron, the 2BK57 offers durability and resistance to wear, ensuring a long service life in demanding environments. Its lightweight and economical design makes it an ideal choice for applications requiring reliable performance without excessive weight or cost. By integrating the 2BK57 sheave into your drive system, you can achieve smoother operation, reduced maintenance costs, and improved overall system reliability.