So I got this from ebay, sealed in the package and with a new skewer. I'm not to familiar with bike components, but when I rotate it, it makes noise. The noise is consistent. I took off the rubber dust caps and there is def grease there. It is brand new and has never been used. No evidence of dirt/dust etc. I suspect this is just the way they are. I'm usually used to sealed ball bearings which are generally silent. Do I need to "back down" on the nuts on each side. Or maybe re-pack the bearings.
Thanks