While much thought
is given to major auto-
motive lubricants like
engine oil and trans-
mission fluid, there are many other
components in a vehicle that have
specific lubrication requirements.
One such component is the hub
assembly, where what are known as
wheel-end lubricants are commonly
used. Hub assemblies can be oiled
or greased, and just like motors
and transmissions, the lubricant
and lubrication practices will have
a considerable impact on their life
expectancy and operation. e better
you take care of these components,
the longer they will last.
How Hub
Assemblies Work
e majority of hub assemblies
utilize a rolling-element bearing on
the spindle to allow the wheel to rotate
freely. These typically are tapered
element bearings to help support loads
in multiple directions. ey are often
installed in pairs on steering wheels.
For wheels that don't steer, known
as drive or idle wheels, you may find
traditional ball bearings. Although
these bearings can reduce the amount
of friction between the moving parts,
the bearings must be lubricated
periodically to enable maximum life
of the assembly. is raises the ques-
tion as to which lubricant should be
used to lubricate, protect and ensure
the bearing will provide trouble-free
service for an extended period of time.
Lubricant Selection
Oils have been employed in
many hub assemblies with good
results. When using an oil bath to
lubricate the wheel ends, there is
generally less drag on the bearings
Best Practices for
Wheel-end Lubricants
50
|
July - August 2018
|
www
.
machinerylubrication.com
"Wheel
ends should
be properly
lubricated
for the
performance
of the vehicle
as well as the
safety of the
public."
Automotive
Wes Cash
|
Noria Corporation
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