The TB Wood's 1VP681 1-1/8" Bore Variable Pitch Sheave is engineered to provide precise speed and torque adjustments in fractional horsepower (FHP) drive systems. Designed for compatibility with belt sections including 3L, 4L, A, 5L, B, and 5V, this sheave offers versatility across various industrial applications. Its variable pitch design allows for manual adjustment, enabling fine-tuning of the drive system to meet specific operational requirements. Constructed from high-quality cast iron, the 1VP681 ensures durability and resistance to wear, making it suitable for demanding environments. The sheave features a finished bore with a keyway, facilitating secure attachment to shafts and minimizing the risk of slippage. With an outside diameter of 6.55 inches and a face width accommodating belts from 3/4" to 1-1/8", it provides flexibility in belt selection and system configuration. The 1VP681 is an ideal solution for applications requiring reliable and adjustable power transmission, contributing to enhanced operational efficiency and equipment longevity.