I agree with Racer and Beason...what part of the bell is it on? Inside, outside, behind the teeth? Is it sliver like it has had rubbing..or it black like the rest? There is a dozen other questions I could ask that would be solved by a picture. I would love to help but hard to tell without seeing it.Then we could say sure normal or wow that sucks....but either way, vague questions lead to incomplete answers.