Basic Bearing Maintenance
My truck has sealed bearings, and I wipe the dust
and mud off my wheel bearings every couple of
runs. Is this enough to keep them working well?
Even though the bearings are fitted with seals,
they are still vulnerable to dust, dirt, and grime,
whether you’re driving on- or off-road. Wiping
them down every couple of runs is a great start,
but if you are racing regularly or even bashing
regularly, part of your regular maintenance routine
should be to give your bearings a good cleaning. Now, this applies more to exposed bearings
(those for your axles, diff outdrives, and some
steering bearings) rather than bearings inside a tranny case or gearbox.
Remove the bearing, then wipe off any external dirt. We recommend wearing
rubber or vinyl gloves for this part. Using a can of motorspray with the spray tube
attached, spray a few blasts into the side of the bearing, then flip it over and give it
a few more sprays. RPM RC Products makes a tool called the Bearing Blaster that
holds the bearing for you and flows the motorspray through it; it’s definitely a good
Give the bearings a couple of minutes to dry, then use a needle applicator to apply
a couple of drops of oil to each bearing. You’ll see the oil seep in past the shields or
seals. Give the bearings a couple of spins to see how they feel, then reinstall them.
Use motor spray or
automotive degreaser to
clean the bearing.
Premium bearing oils are nice,
but any light oil will do—and
will be far better than no oil.