Grease wheel centering hubs, huh? Is that where the hub mates with the wheel?

 

Its in the service manual, anyone know what this is.

 

What's the context of your question? Do you want to apply grease to prevent the wheel from bonding to the hub?

The hub has a center flange that sticks out for centering the wheel. You can apply a very thin layer of grease or anti-seize to the sides of the flange. Do not allow any to get on the flat surface of the hub.

 

as well keep it off any lug hardware!

 

Interesting. I greased the hubs when I changed from winter to summer wheels this spring. The winter wheels stuck a bit because of corrosion. I might have strayed onto the flat surface with the grease. Why is that bad?

Sincerely,
--Anders.

 

Anders
Your wheels are actually held in place by the torque between the two surfaces of the wheel and the hub and not the lug bolts. It is a good idea to clean these two surfaces whenever remounting wheels. As others have mentioned you can use a small amount of grease around the centering ring but not on the hub surface. If you have greased this area be sure to remove it ASAP. Brake cleaner would work well for this job.
Steve

 

Not to discount the roll your bolts play, as the facilitate the hub to flange torque. They don't like grease either!

Alex