There's an income limit for disability, and a lot of that depends on your state. You might have an easier time finding an answer if you google the question specifically with your state in the title, like this:
For social security disability you can make up to, I believe, it's now $750/month without it affecting your disability. Above that they will take away .50 of disability for every $1 you earn. That's my understanding from my ex husbands case with them, but call social security and ask them.