Yes I knew I would get all kinds of hate for posting that, but being a flat pulley, and normal driving, and not on a accessory, I have seen them last.
As I said I suggested changing and easy with belt off, but for some ppl cost even small can be a issue, why I said fix the problem that will definitely leave you stranded soon, first.

I got alot of hate from that, so let me ask you this.
How long do you think it will last before giving problems at normal driving?
A week, month, year?
5 miles, 500 miles, 50,000 miles?
And how certain are you about that?