Re: Inflatable boat trailer?
Honestly unless the boat is fully setup with outboard on and ready to go I am not sure I would deal with a trailer. Instead I would just get a good air pump, and deal with it on scene.
I just put together a Harbor Freight trailer for my Zodiac, and I researched numerous sites about this trailer...I bought Bearing buddies, I plan on letting the hubs cool down before dunking them in the water (I need to setup the boat anyway), and i am using a good marine synthetic grease.
What kind of a seal did you use for the inside? That is the one I would worry about failing. If you look at a true marine seal it is a double seal. The key is to pressurize with grease right before dropping the trailer into the water. The hubs have a zerk fitting on the inside also. Careful because they are fragile fittings. Both of mine broke and I replaced them.
i also bookmarked on my home PC the Timken bearings I could use and I actually was sent an extra pair of bearings, they are currently greased up and sitting in a plastic bag,,,just in case.
Do you have a part number for the Timken bearings? I would mind having a spare set for my HF trailer. I don't feel like tearing it down again to measure...although I did take pictures of the bearing part numbers...somewhere.
There is a forum called Tear Drop Trailers where I found a wealth of information..and I really didn't notice HUGE bearing issues from these guys. Any trailer you use you should stay on top of the greasing...
The issues are well documented as I too did a bunch of research. The trailer is also commonly used by motorcyclists. I fully welded my trailer and it is much stiffer.
Why not build bunks instead of an elaborate system? Bunks for a light boat would be aluminum angle, with boards on top. No welding needed. Use square u-bolts around the trailer to the aluminum angle.
As you can see mine failed, but my boat weighs 500lbs with a 40hp outboard hanging over the back. It was the rocking back and forth that broke them because they were loose. I replaced them with aluminum u-channel, but welded in t fittings so it can not rock side to side anymore. All that won't be needed with a super light boat.