...sigh.....
for the 500th time:
Don't use simple green on a chain, or on bearing surfaces. It is a detergent, and is very acidic!
For lubricated parts (like a chain, bearing cups, etc.), always use a solvent, such as mineral spirits, citrus solvent, or even kerosene. Detergents will remain inside the chain and destroy the oil you lubricate it with. The acid in simple green will also etch bearing surfaces-it is a very poor choice for cleaning moving parts.