Errr... right...
Probably a useful item to have when it's "that time of the month" anyway...
I'm not sure whether or not I should be embarrassed about *not* knowing what K-Y jelly is 
-Aaron
Yes. How are you going to gunk up the bearings with K-Y when you go to take the car off?
If the point is to replace the bearings anyway, why would you care if the old ones fling about everywhere? 
Because you are sure to drop some of the new Torlon balls, they bounce way back into the dirt, stainless steel metal shavings and dust bunnies under your workbench, and you have to fill up with old ones. #*&^#$%^&#@@#$%
A helpful hint for that kind of problem. Take your regular or shop vac, put some old pantyhose or cheesecloth over the end of the hose and then slide the extension tube on. Poke around for the lost item and then sort through the junk collected in the pantyhose. If you have too much crud under the bench, you may have to clear out the tube a couple times, but it does keep you from having to dig through the entire canister.
holy crap steve, thats awesome, I have a big magnet for finding metal things, but now days it seams most components are impervious to magnets. Thanks for the tip.
Charlie Johnson's excellent suggestion: carry a small bottle of soapy water- give the traveler car several squirts and wiggles when mounting up to go out. Splash it some and all the dirt is flushed & gone.
Repeat as necessary....like every time you go sailing.
Round Torlon balls/hard plastic body/anodized aluminum track...everything wants to be CLEAN!