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Pitch Diameter (B/ 5L): 7
if your markings are corroded or worn off of the chain
This 35BB20H idler sprocket features 20 hardened teeth
Shaft Diameter (d): 1-9/16"
which means it will directly interchange with most other brands
BK25 Pulley 5/8" Bore 50B29 Sprockets Pitch Diameter (B/ 5L): 7This BK25 Pulley 1 2" bore is directly interchangeable with other manufacturers, is 2. 50" 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 BK25 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
