Re: Bearing problems on a long tow
I have been boating for 42 years, all with trailer boats. The only bearing failure I experienced was when a hub cover came off, and the grease blew out. And yes, it was on an 10" tire.
Now, what do I do? I have a dual axle trailer, with 4 wheel disks. i use bearing buddies. The trick with bearing buddies is: don't fill them until the little piston comes all the way out. The grease will expand under heat, and has nowhere to go. The pressure will blow off the BB. After individually packing the bearing, and packing some grease between the bearing while disassembling, fill them only until the piston just barely rocks, while rotating the tire. I clean down the bearings once a year in solvent, inspect and reinstall with fresh grease. The preload adjustment is critical. If you don't know how, or don't want to do the above, seek professional service.
As said above: If the bearings are in good condition at the dtart of the trip, they are packed and adjusted correctly, and checked every so often at the start of the trip, they will probably make it OK.
Other things to take with you:
A mechanics floor jack, rated 2 tons. ( About 20 at Wallys world), X lug wrench, impact socket that fits the lug nuts, and a 2' breaker bar. ( For when the X wrench don't make it) Spare lug nuts 9 and grease under them before torquing to about 95 ft/#, spare bearings, a can of grease ( rated GL2) and a small hand operated grease gun. Some rags and a can of GoJo, and a 3' X 1" 1/2" plywood for under the jack. The shoulder of the roads are soft...
murphy's reverse law: If you have the parts and the knowledge to change them, they will never fail.
Have a good trip, and enjoy that boat.
Don't forget to service the tow vehicle......