It is also black oxide coated which increases the sprockets overall resistance to the environment along with preventing early rust build up
This 140A14 sprocket is a durable
Our superior HCFS205-16 bearing with a 1" bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing
Limiting Speed (Grease): 3100 RPM
2BK110 Pulley 1-7/16" Bore 84-Tooth Sprocket It is also black oxideThis 2BK110 Pulley 1 7 16" bore is directly interchangeable with other manufacturers v belt pulleys, it is 10. 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 2BK110 pulley from the others is that it is made using a high grade 35 cast iron,