Wheel Bearings

klutchdust wrote:
And my favorite, the one that lubes the ball before he drops his trailer coupler on it.
ahhh, the "peace of mind" thinker with lights flickering as he loses ground between his vehicles..

While I can't argue about the rest of your rant, this part is off the charts incorrect.

The ground is established via 4 pin, 6 pin or 7 pin connector from tow vehicle to trailer, not through the ball.

Any lights "flickering" most likely is a poor ground connection on the lights end, often manufactures take short cuts and ground the lights near by to any metal they can find..

Bad electrical contacts in the plug, socket or wires can cause flickering also..

But ball, no, good design calls for using a ground pin on the plug and socket.

As far as greasing the ball, yes, I do since it cuts down on friction to the ball and the hitch parts and makes hitching and unhitching a breeze.. I never leave the hitch in the vehicle receiver, as those are rich targets for thieves and hitch parts are not cheap to replace. I remove it, use a free plastic bag from any store and wrap it around the ball.. So, no, I don't get grease on my legs or clothing..

When I go to use the hitch again, remove the plastic bag and discard in the trash..