Common Interchanges: 50BS31H
25B28 sprockets with a stock bore comes with the standard 3/8" ID hole with no keyway or set screws and can be easily machine bored to custom sizes
This 41SK84 sprocket is a durable
2AK39 Pulley 3/4" Dimensions
BK60 Pulley 5/8" Bore 41B9 Sprockets Common Interchanges: 50BS31HThis BK60 Pulley 5 8" 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