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75mm pitch (center of one pin to the center of the next) which is double that of the 10B chain
SAPF206-17 Bearing Dimensions
This 80BS36 sprocket features a 1-3/8" finished bore including a key-way and two setscrews
Pitch Diameter (B/ 5L): 12
41B84 sprockets with a stock bore comes with the standard 3/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes
BK40 Pulley 1/2" Bore filter_H35BS17 75mm pitch (center of oneThis BK40 Pulley 1 2" bore is directly interchangeable with other manufacturers, is 3. 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 BK40 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
