Chicago Die Casting Single Groove Die Cast Pulley For A belts, pulleys from 2 in to 12 in have keyways except 3/8 in and 1/2 in bores and 3/4 in bores in pulleys less than 4 in in diameter. All pulleys are with slotted headless set screws. In Sta-Pak cartons. For 4L or 1/2 in x 11/32 in belts. Assembled Product Length: 2" Assembled Product Width: 2" . Standard V-Type Pulleys Fractional Horsepower Usage Single groove For "A" belts Outside diameter 2" Pitch diameter 1.75" 5/8" bore - no keyway. The Chicago Die Casting 200A 5/8 2 in. Single V Groove 5/8 in. Pulley stands as a testament to precision engineering and durability. This pulley is meticulously crafted to meet the demands of diverse industries, from heavy-duty industrial machinery to creative DIY projects. At its core, the pulley boasts exceptional build quality, ensuring optimal performance over time. The use of robust materials not only enhances its longevity but also contributes to its ability to withstand rigorous operating conditions. The Chicago Die Casting 200A pulley is a reliable component that can be counted on for consistent power transmission without compromising on quality. One of the standout features of this pulley is its single V groove design. This groove is strategically crafted to securely grip belts, ropes, or cables, thereby minimizing slippage during operation. This feature is particularly crucial for maintaining efficient power transmission and preventing unnecessary wear and tear on belts, ensuring smooth and dependable rotation.