120C70 sprockets with a stock bore come with the standard 1-1/2" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes
the 06B K2 attachment has a bent tab on both sides with two holes each for mounting
2050B24 Sprocket
Shaft Diameter (d): 1-15/16"
This 20A offset link is manufactured in accordance with ANSI B29
2BK100 Pulley 1-3/8" Bore 2BK40 Pulley 120C70 sprockets with a stockThis 2BK100 Pulley 1 3 8" bore is directly interchangeable with other manufacturers v belt pulleys, it is 9. 75" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. double BK pulleys work with belt types A, 4L, B, 5L, AX, BX, AA, BB, double banded A, double banded B, and double banded BX cogged v belts. What separates this double 2BK100 pulley from the others is that it is made using a high grade 35 cast iron, is