AK28 Pulley 3/4" Bore 40B45 Sprockets This 40BS25 sprocket featured a

This 40BS25 sprocket featured a 1-1/2" finished bore with a key-way and two set screws

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Pitch Diameter: 30

For more information on a single groove 1B5V54 sheave

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AK28 Pulley 3/4" Bore 40B45 Sprockets This 40BS25 sprocket featured aThis AK28 Pulley 3 4" bore is directly interchangeable with other manufacturers, is 2. 80" in diameter, is used with A style V Belts, and is manufactured in accordance with ARPM Standard IP20 for safe operation. What separates this AK28 pulley from the others is that it is made using a high grade 35 cast iron, is phosphate coated, painted, and balanced at the factory. Using the grade 35 cast iron offers a higher tensile strength and is more wear