It's ok as long as you don't overdo it and start spamming other peoples pages with the link - that will get you banned.
i have been doing this for a while and i had no problems with it, anyway spamming a lot will not do you good on long term. you have to be balanced with that. Hit me a pm if you need any help.
There is no problem in inserting CB aff links into a FB page as long as the CB vendor websites don't blocked by FB.