Something that sets this 2060B19 sprocket apart from others is that it is Black Oxide Finished
the 5314-ZZ bearing features raceways that are precision honed to a superb finish
UEP207-23 Bearing Dimensions
HCST209 take-up bearings are designed for take-up frames
SER209-28 Bearing Dimensions
2BK90 Pulley 1-3/16" Bore 100B20 Sprockets Something that sets this 2060B19This 2BK90 Pulley 1 3 16" bore is directly interchangeable with other manufacturers v belt pulleys, it is 8. 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 2BK90 pulley from the others is that it is made using a high grade 35 cast iron, is