It is also black oxide coated which increases the sprockets overall resistance to the environment along with preventing early rust build up
This 2AK51H Pulley uses an H-Series Bushing
our UCFCSX17-55 bearing has added features that improve the overall life and performance of the unit
Limiting Speed (Open): 12000 RPM
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,