The TB Wood's 1VP5078 is a variable pitch sheave designed to accommodate a range of belt types, including 3L, 4L, 5L, A, B, and 5V. With an outside diameter of 4-3/4 inches and a 7/8-inch bore featuring a finished keyway, this sheave offers versatility and ease of installation. The sheave's design allows for manual adjustment of the pitch diameter, enabling precise control over belt tension and speed ratios. Constructed from high-quality cast iron, the 1VP5078 ensures durability and reliable performance in demanding industrial applications. Its single groove design is compatible with various belt sections, providing flexibility in system configurations. The sheave's bore length of 2 inches and keyway size of 3/16 x 3/32 inches facilitate secure mounting and efficient power transmission. This product is ideal for applications requiring variable speed adjustments and is suitable for use with multiple belt types, making it a valuable component in belt-driven systems.