{"product_id":"ak25-3-4-od-2-5-cast-iron-id-3-4-shaft-pulley","title":"Cast Iron Pulley Sheave For Small Machinery, 2.5 Inch Outside Diameter, 0.75 Inch Bore, Single Groove V Belt Style A, Keyway Compatible Shaft Pulley, Supports 3L 4L 5L Belts, 2.5D 0.75B, Durable Cast Iron Construction, Replacement Part","description":"\u003cdiv\u003e3\/4 inch bore cast iron pulley, 2.5 inch OD, 1 groove\u003cbr\u003e\n✔️ Single pulley, 3\/4 in bore; 2.5 in OD; 1 groove; 4L belt \u003cp\u003eThis single V-belt pulley is a cast iron part with a 3\/4 in bore, built for compact belt-drive setups. Ideal for small motors, hobby machines, and light-duty conveyors, it accepts common belt sizes (3L\/4L\/A) and includes a keyway for secure shaft mounting.\u003c\/p\u003e \u003cp\u003e✅ Outside diameter 2.5 in (63.5 mm)\u003cbr\u003e✅ Bore 3\/4 in (19.05 mm)\u003cbr\u003e✅ Length through bore 1.1563 in (29.38 mm)\u003cbr\u003e✅ Belt compatibility 3L, 4L, A (V-style)\u003cbr\u003e✅ Keyway 3\/16 x 3\/32 in (4.76 x 2.38 mm)\u003cbr\u003e✅ Material Cast iron; single pulley with set screw\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a V-belt drive pulley used for and how do you pick the right bore and belt size? A quick guide to pulley specs for a reliable drive.\n\u003cbr\u003e - Bore size matters for shaft fit and clamp load\n\u003cbr\u003e - OD and belt size affect speed and torque\n\u003cbr\u003e - Cast iron provides rigidity and longevity\n\u003cbr\u003e - Verify belt compatibility: 3L, 4L, or A\u003c\/p\u003e \u003c\/div\u003e","brand":"RBO","offers":[{"title":"Default Title","offer_id":43583001166059,"sku":"RBO-AK25-3-4-PULLEY","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/ak25-34-od-2-5-cast-iron-id-34-shaft-pulley-sheave-1-groove-v-style-a-belt-4l-new-vxb-ball-bearings-32681038250219.jpg?v=1770446748","url":"https:\/\/vxb.com\/products\/ak25-3-4-od-2-5-cast-iron-id-3-4-shaft-pulley","provider":"VXB Bearings","version":"1.0","type":"link"}