59"Stock Bore Size: 1/2"Maximum Bore size: 1-15/16"Hub Diameter: 1-15/16"Length Through Bore: 3/4"Sprocket Weight: 0
40A47 sprockets with a stock bore comes with a 23/32" inside diameter plain hole and can be easily machine bored to custom sizes
Roller Link Width (B2): 8
Sprocket Size: 40X24
This 60BS15 sprocket featured a 1-3/4" finished bore with a key-way and two set screws
BK60 Pulley 1" Bore 60B41 Sprockets 59"Stock Bore Size: 1/2"Maximum BoreThis BK60 Pulley 1" bore is directly interchangeable with other manufacturers, is 5. 75" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. It works with belt sizes A, 4L, B, 5L, AX, BX, AA, and BB. What separates this BK60 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