Can someone explain me amazon affiliate?

Can someone explain me how amazon affiliate works? This is what I know :

You create a website for a product ( maybe for more than 1) and you send traffic to it ( seo or anyhting else) and when someone buys it you get some % profit from it .

What I don't know :

How much % you get from a product?
How often do amazon pay?
How can you get banned from Amazon Aff.? Like if I use blackhat seo or anything can my amazon account get banned?