Chicago Die Casting 250A5 Single V Grooved Pulley, 2-1/2" x 1/2", Zinc Die Cast (5-PACK) This Chicago Die Casting 250A5 Single V Grooved Pulley is a top-quality product designed to meet your needs. With a size of 2-1/2" x 1/2", it is perfect for use in various industries. The brand is well-known for its durable and reliable products, and this one is no exception. It has a GTIN of 00096158250503 and a model number of 250A5. This pulley is ideal for use in lifting machines and is made of high-quality materials to ensure long-lasting performance. Whether you're in the material handling industry or need a reliable pulley for your business, this Chicago Die Casting product is an excellent choice. For fractional horse power electric motors, "A" section belt width, Zinc die cast Zinc die cast "A" section belt width Keyway has slotted headless set screw For fractional horse power electric motors single V-grooved pulley is for A belts size 4L or 1/2 by 11/32 inches 2 1/2" x 1/2" For A belts, pulleys from 2'' to 12'' have keyways except 3/8'' and 1/2'' bores and 3/4'' bores in pulleys less than 4'' in diameter Dimensions: 2-1/2-inch diameter with 1/2-inch bore