Trailers with trolleys

[phum]

Fishermantwo,
90% of what you say has nothing to do with the situation here.
Trolleys under a Ross has been done before, photos were on Ross forum that no longer exists.
Read the first post again, maybe I should have underlined HELP

 

[AndieMac]

Downwest.....with Bearing Buddies (spring loaded grease points) and proper gal. calipers and alloy discs, corrosion should not be an issue. Pump grease into the buddies just prior to launching/dunking, an annual check and re-pack, I'm on my 5th season with the same bearings (carrying just over 3000kgs on tandem).
During lay-up, all working parts get a coat of a lanolin based lubricant
Original (gal.) trailer is 19 years old, and is fully submerged (salt water) every launching.

 

[DownWest]

AndieMac, I agree that modern (relativly) improvements, and frequent maintainence, make it more practical to submerge the trailer. But over here I have yet to see disc brakes on a trailer. In fact a UK guy had the choice of importing US kit or making his own, he did the latter. I used to make trailers a few years ago and bearings where a constant problem, letting them cool and pumping grease in before launch helped. But the bearing guys still did good business as did the roadside repair people. I would prefere to keep them dry. Most people are used to cars with bearings for life and don't realise how quickly salt water can ruin them on trailers, few are mechanicly minded enough to even think about them and would have to get professional help. Case in point, two of us were trailing our boats to a meeting, about 400km. I suggested he jack his trailer up to check the wheels. Both would probably not have lasted the journey. It hadn't occured to him.
A

 

[AndieMac]

If you are a running shoe/drum system, I don't blame you for not wanting it near salt water, I didn't think folks still used that method.

Not too hard to modify, after welding on hydraulic disc wheel ends, for the bracket for the disc calipers.
If you didn't want to pay for the expensive bronze alloy disc rotors, even normal car rotors will last a surprisingly long time with a good fresh water flush each time and a lanolin coating on all but the rotor surface. A re greasing of the caliper pads, sliding bush occasionlly keeps free movement happening, for an efficent braking system.

At the end of the day, it doesn't matter what system you have, if its not maintained, its going to fail.
Nasty stuff that salt water.