{"product_id":"bk45-3-4-id-3-4-bore-cast-iron-solid-pulley-w","title":"One Groove Cast Iron Pulley With 0.75 Inch Bore And 4.25 Inch Outer Diameter For V Belts 4L And 5L, Solid Machined Pulley With Finished Bore, Standard Keyseat, And Static Balancing For Smooth Performance","description":"\u003cdiv\u003eSingle 4.25 in cast iron pulley, 3\/4 in bore\u003cbr\u003e\n✔️ Pack: 1 piece, fits 4L\/5L belts, single groove \u003cp\u003eThis is a single-groove cast iron pulley designed for belt drives using V-belts in 4L or 5L sizes. It is commonly used on small machines, woodworking tools, and light conveyors where a reliable, rigid drive is needed.\u003c\/p\u003e ✅ Outside diameter: 4.25 in (108 mm) \u003cbr\u003e\n✅ Bore: 0.75 in (19.05 mm) \u003cbr\u003e\n✅ Material: cast iron, precision machined, statically balanced \u003cbr\u003e\n✅ Belt compatibility: 4L, A, 5L, B belts; one groove \u003cbr\u003e \u003cp\u003e💡 What is a belt pulley used for in compact belt-drive systems?\u003cbr\u003eIn practical terms, a belt pulley transfers rotation from the driver to the driven shaft and helps maintain belt tension and alignment in compact setups.\u003cbr\u003e- transfers torque efficiently in narrow belt drives\u003cbr\u003e- cast iron provides rigidity and long life\u003cbr\u003e- single groove supports common belt types such as 4L\/5L\u003c\/p\u003e\n\u003c\/div\u003e","brand":"RBO","offers":[{"title":"Default Title","offer_id":43839734415595,"sku":"RBO-BK45-3-4-Pulley","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/bk45-34-id-34-0-625-bore-cast-iron-solid-pulley-with-4-5-inch-od-for-v-belts-size-4l-5l-bk4534-vxb-ball-bearings.jpg?v=1770447141","url":"https:\/\/vxb.com\/products\/bk45-3-4-id-3-4-bore-cast-iron-solid-pulley-w","provider":"VXB Bearings","version":"1.0","type":"link"}