I’m not trying to be mean or anything, but if you’re not sure of something, please, just don’t make the post; you’re confusing him. WD-40 will not gunk up the bearing. I’ve been using wd-40 in one certain bearing for years. Doing it just to prove others wrong. I’ve had no problems with it and this particular fhz has 4 minute spins with my massive arms throwing it. I will say it’s not the best because it attracts dust. That’s why this bearing still has the shields on.