Blower Rattle? (Not Coupler)

Since I bought my GTP I've noticed this noise at idle and it seems to be coming from the TB side of the blower. Are there bearings on that side of the blower that need to greased and repacked periodically? If so does anyone know how where to get it done? Or should I just buy ported ZZP?
I really don't know what it is or what to do about it. Any insightful input is appreciated.
Thanks.