100Q21 sprockets are bored to accept a Q1 type taper bushing
This 80SF60 sprocket is a durable
50BS53 1 3/16" Finished Bore Sprocket Dimensions
SSUCTPTB208 Bearing Dimensions
While the phosphate coated and then painted finish adds corrosion resistance to the 2AK51H pulley
BK28 Pulley 3/4" Bore 80B43 Sprockets 100Q21 sprockets are bored toThis BK28 Pulley 3 4" bore is directly interchangeable with other manufacturers, is 2. 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 BK28 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