60A25 sprockets with a stock bore comes with a 23/32" inside diameter plain hole and can be easily machine bored to custom sizes
This 50BS34 sprocket features a 1" finished bore including a key-way and two setscrews
Dimension (a): 4-7/8"
Our superior UCFBS205-15 bearing with a 15/16" bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing
BK115 Pulley 1-3/8" Bore 47-Tooth Sprocket 60A25 sprockets with a stockThis BK115 Pulley 1 3 8" bore is directly interchangeable with other manufacturers, is 11. 25" 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 BK115 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