Why Bearing Buddy?
NEED BEARING PROTECTION
Trailering, even a short distance, heats the hubs. When the wheels are
submerged during launching, the hubs suddenly cool and the air inside
the unprotected hubs contracts, forming a vacuum which draws in water
through the rear seals. There is no such thing as a rotating seal that
stays perfect. Water and grit thus drawn into the hubs relentlessly
destroy bearings. When properly installed and maintained, Bearing Buddy®
prevents wheel bearing failure and eliminates bearing repacking. Boat
trailer wheels can be completely submerged.
Utility Equipment, ATV, Horse, Camping, and other occasional
These trailers, because they are not used regularly, are also subject
to bearing corrosion and failure from condensation moisture from air
sucked into hot hubs as they cool. Moisture stays in the hubs causing
rust and pitting until they are reheated when the trailer is used again.
VS. OIL BATH
Some trailer manufacturers
are offering an oil bath system as an alternative to a standard bearing
protector, such as Bearing Buddy®. They claim that since long haul
trucks use this system it must be a superior system to a grease packed
hub. What they fail to recognize is that America's highways are the
perfect environment and application, as the constant miles and tire
rotation keeps the bearings well lubricated. Boat trailers, however,
operate in a completely different environment. The hubs on a trailer
can heat up during long trips and when they are dipped into cool lake
water, the sudden temperature change creates a vacuum inside the hub.
This vacuum will draw any condensation, moisture, or impurities directly
into the bearings, which can cause premature bearing failure.
protectors, such as Bearing Buddy®, make it easy to visually check
the amount of grease inside grease packed hubs. The internal spring
piston exerts about 3 p.s.i. against the grease to ensure that no water
enters the hub when the hub is submerged during loading and unloading.
When properly maintained, there are no voids inside the hub where condensation
can form during wither storage.
oil bath hubs should be checked after every loading/unloading cycle
to make sure water has not penetrated and diluted the oil. Small leaks
can cause the oil to escape and once this happens, bearing failure is
quick and complete within a few miles. Most oil bath hubs are only half
filled with oil and must be carefully inspected to maintain the proper
level. Too much or too little oil could cause problems.
If a Bearing Buddy®
is knocked off, it would still be possible to run for many miles without
bearing failure. This would not be possible with an oil bath. Bearing
failure would occur within a few miles.
Original article from Bearing Buddy