Trailer Tires, Bearings
and Hubs
You can minimize your chances of getting a flat tire by taking a few minutes
to ensure proper inflation. Inspect tires when they are cool for cracks
and spider webbing that occur when rubber tires stay in one place for
extended periods of time. Carry at least one spare tire assembly, and
only replace radial with radial, bias ply with bias ply. Flat tire eliminators
such as Slime® have proven their worth over the years for fixing flat
tires caused by small punctures.
Improper bearing maintenance and lubrication account for most highway
trailer breakdowns. At most ramps, boaters are forced to dunk their
axle wheels and bearings in the water in order to unload the boat. When
a warm hub is submerged in cold water, the air inside the hub contracts
and draws water in through the best of seals. Once parked, the fresh-
or saltwater will settle at the lowest point in the hub. This is where
corrosion and rust begin. The next time the trailer is moved, the bad
spot on the bearing may cause excessive heat and eventually total bearing
failure. In the worst case scenario, heat can be intense enough to sever
the axle and wheel.
The only way to eliminate water intrusion is to displace any possible
air pockets with marine-grade grease. Bearing protectors apply slight
pressure to the grease packing to help prevent water intrusion. Super
Lube hubs also help by providing lubricant at both the front and rear
bearings without "repacking" the hubs. When on the road, make it a habit
to check wheel hubs every time you stop for gas or a break. If the hub
feels abnormally hot, the bearings should be inspected before continuing.
Before a trip of any length, inspect your bearings for any signs of
wear, rust corrosion, or heat damage and replace them if in doubt.
BoatUS
offers bearings that are made in the U.S.A. Although more expensive
than imported bearings of lesser quality, we feel they're worth the
extra money since they are built to higher tolerances, and in most cases
are direct replacements for the bearings that were put on at the factory.
When checking rear bearings (axle side) always replace the seal with
a new one to ensure a good tight seal.
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