I thought about doing that many many years ago but never got around to it. I haven't had a problem without the brushes on my 25 year old SS band saw that I bought new in 1994.
It certainly won't hurt to do it but I don't think it is necessary. Do any commercial band saws come with brushes? My 14" Powermatic didn't.
John & Mary Burger
Eagle's Lair Woodshop