120B13H sprockets with a stock bore comes with the standard 1-3/8" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes
The standard AL1666 leaf chain that we offer is manufactured using high quality components (pins and plates) that have gone through special manufacturing processes to ensure strength and durability
This 120BS23 sprocket features a 1" finished bore with a key-way and two set screws
Our HCTB209-27 bearings are manufactured to industry standard dimensions
BK52 Pulley 7/8" Bore filter_35B15-SB 120B13H sprockets with a stockThis BK52 Pulley 7 8" bore is directly interchangeable with other manufacturers, is 4. 95" 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 BK52 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