Karanka is convinced a man who cost the Gunners £16million when he moved from Southampton two summers ago will return to North London having benefited from his time on Teesside.
Asked if Chambers had something to prove, the Spaniard said: "He has come here to help us. I brought him here to help him because at the end of the season, the main thing is that we can stay in the Premier League and Calum can go back to Arsenal as a better player.
"Always the marks are at the end and for that reason, I think the marks will be good because he is a good player. He is coming to help us, to put pressure on different players and as a really, really good alternative for me.
"I have had a lot of experience with players who have come here and maybe they hadn't played the games they expected to play, but after coming here they went back to their clubs having lived an amazing experience and improving.
"Sometimes it's true that you have to play a lot of games, but sometimes players who haven't played here went to other places and came back better players. It's the same thing when we send players on loan."