2BK28 Pulley 1-1/8" Bore Bearings This sprocket is also black

This sprocket is also black oxide coated which increases resistance to the environment and prevents early rust build up

and precision 45 tooth sprocket that is manufactured to accept a M bushing

Pulley Size: 2AK21

What sets this 5305-ZZ bearing apart from others is the ABEC 3 precision standard that this bearing is made to

Part Number: #200N45

2BK28 Pulley 1-1/8" Bore Bearings This sprocket is also blackThis 2BK28 Pulley 1 1 8" bore is directly interchangeable with other manufacturers v belt pulleys, it is 2. 95" 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 2BK28 pulley from the others is that it is made using a high grade 35 cast iron, is