Dimension (B): 1-1/2"
This 41BS12 sprocket featured a 1/2" finished bore with a key-way and two set screws
100BS15 2" Finished Bore Sprocket Dimensions
Chain Size: #35
and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage
BK115H Pulley Single-Groove 11.25" OD filter_35BS16-FB Dimension (B): 1-1/2"This BK115H Pulley uses an H Series Bushing, is directly interchangeable with other manufacturers, is 11. 25" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. With AK series pulleys you can use A, 4L, B, 5L, AX, BX, AA, and BB belts. What separates this BK115H 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