Likely it was the idjit that was in there last. If that happened to me I
would be looking for a new mechainic.

Boat trailers should be repacked every year. Your trailer hopefully
does not get backed into any lakes. I would make a point of doing it
periodically and checking tire pressures before starting out on a trip
( daily when traveling) Quick checks tire by thumping at fuel stops
also should include feeling for heat by the hubs. A bad bearing will
generate a lot of heat. If you feel one is much hotter time to stop
and get it fixed right then. Learn how to pack the bearings yourself
is will give you a good idea what to look for and how to fix something
before it causes a breakdown.  

Tom  

Hi,
You should check and repack the wheel bearings once a year. It's not
a big job, easy DIY weekend couple of hours.  You don't need to do
them every couple hundred miles.  The reason you repack are to check
and make sure the bearings are ok and they have plenty of grease.  To
check and make sure the brakes are ok, including shoes and magnets and
wiring.

Take care and Happy Campin...

RichA
"We Get Too Soon Olde and Too Late Smart"

The guy who does mine recommends every 10,000 miles.  If I did as
little as you do every year I would have it done once a year instead
of waiting for the 10,000 mile mark.

Hunter
Life's journey is not to arrive at the grave safely in a well-preserved body,
but rather to skid in sideways, totally worn out, shouting "...holy sh.t...what a ride!"

Nothing, they a basically the same as auto bearing.  But the
dealerships say they need to be repacked annually to drum up business.

Wheel bearing typical can take allot of punishment /abuse before they
fail and in some cases take can a long time before they fail, but due
that they are on the trailer you can not feel or hear them going bad.
If you have bearings going bad or some one screwed up the last packing
you may get threw a season with no problems and catch it in the spring
before any major damage is caused.  That's why they say to do it so
often.

I know how to repack wheel bearings and only do mine about every 10,000
miles.  Every time I do repack I have the same results, everything is
fine and good for another 10,000.

Unless you are confident in yourself doing the job or someone else, I
would repack them at least every 3,000.

Dave

As a previous poster stated, the bearings aren't that fragile. They are
the same as a car.

One problem is the TT/camper sits for extended periods of time. During
that idle time, the grease slowly works its way to the bottom and lays
there. Then, when you get ready to tow it, only the bottom of the
bearings get enough grease to initially grease them. After a few miles
down the road, the grease will be evenly distibuted, but alot of times
it is too late.

Another problem is wheel diameter. Most TT's have big enough wheels so
they aren't turning as fast as the smaller (8" to 12") models. The
smaller and faster tirning wheels will cause more heat build-up.
Therefore, they should be checked more frequently.

As far as brake linings coming apart: Temperature changes, rust and/or
bad bonding will cause this. Again, TT's that sit idle for extended
times have more problems with brakes, tires, bearings and etc.

It is my opinion that lack of use is just as bad as over use.

Hank <~~~~tries to use it before I lose it.

As a previous poster stated, the bearings aren't that fragile. They are
the same as a car.

One problem is the TT/camper sits for extended periods of time. During
that idle time, the grease slowly works its way to the bottom and lays
there. Then, when you get ready to tow it, only the bottom of the
bearings get enough grease to initially grease them. After a few miles
down the road, the grease will be evenly distibuted, but alot of times
it is too late.

Another problem is wheel diameter. Most TT's have big enough wheels so
they aren't turning as fast as the smaller (8" to 12") models. The
smaller and faster turning wheels will cause more heat build-up.
Therefore, they should be checked more frequently.

As far as brake linings coming apart: Temperature changes, rust and/or
bad bonding will cause this. Again, TT's that sit idle for extended
times have more problems with brakes, tires, bearings and etc.

It is my opinion that lack of use is just as bad as over use.

Hank <~~~~tries to use it before I lose it.

As a previous poster stated, the bearings aren't that fragile. They are
the same as a car.

One problem is the TT/camper sits for extended periods of time. During
that idle time, the grease slowly works its way to the bottom and lays
there. Then, when you get ready to tow it, only the bottom of the
bearings get enough grease to initially grease them. After a few miles
down the road, the grease will be evenly distibuted, but alot of times
it is too late.

Another problem is wheel diameter. Most TT's have big enough wheels so
they aren't turning as fast as the smaller (8" to 12") models. The
smaller and faster tirning wheels will cause more heat build-up.
Therefore, they should be checked more frequently.

As far as brake linings coming apart: Temperature changes, rust and/or
bad bonding will cause this. Again, TT's that sit idle for extended
times have more problems with brakes, tires, bearings and etc.

It is my opinion that lack of use is just as bad as over use.

Hank <~~~~tries to use it before I lose it.