Adding additional rollers

[Into The Blue]

I've been considering selling the rib for a while but keep coming back to why - and it's partly that getting the rib on and off the trailer simply isn't that easy. So thought process number one goes something like - Make it easier to launch and recover.
To that end I want to add more rollers under the boat to make it move more easily. Currently I have 16 rollers in pairs under the aft end and 8 under the pointy end. They are fitted to swinging bars on a roller coaster.

I'd like to significantly increase this but am struggling to source a supply of suitable galvanised mounting brackets. Specifically I'm looking for a Bar that will take 6 x 2 rollers, one for each side that'll give me 24 at the back, I can then move the existing 16 to the front to increase the total from 24 to 40.
I've tried RM trailers and Indespension and neither can help me, Hayling Island Trailers suggested buying a new trailer but that's a bit out of my price range right now.
There are a couple of pictures I've tried to upload to show what I'm looking for, all help appreciated.
ItB

[Kernow Buoy]

Might be worth giving gullwing a call, pretty sure they sell their 'roller ramp' assembly as a seperate item.
http://www.gullwingtrailers.co.uk/pr-kittiwake.html

[bedajim]

Hi

These people have been very helpful in the past

http://www.sbstrailers.co.uk/accessories.asp

Jim

[Erin]

Do extra rollers make much of a difference. Is it not just the same weight spread over more rollers with greater friction?

[Into The Blue]

Erin, Not sure and I guess if others have experience than i'd appreciate their views. My plan is based on experience in warehousing, more rollers, lower load per roller = easier to push off. I think the load on the existing rollers is too high and is deforming them to the point of lock up.
When unloaded they spin freely.
Itb

[Hightower]

Can you post a pic of your boat on trailer please Steve. With a multi roller swing arm type setup like you've said you've got it should be a piece of cake unless there is something fundamentally wrong.

[Into The Blue]

Will try to get something posted when I can get to my pc. Currently decorating so it's hiding under dust covers

[BogMonster]

Originally Posted by Into The Blue

My plan is based on experience in warehousing, more rollers, lower load per roller = easier to push off. I think the load on the existing rollers is too high and is deforming them to the point of lock up.
When unloaded they spin freely.
Itb

I have the same observation with the keel rollers on my trailer. Because the boat only sits on 3 of them the load per roller squishes the roller right down and means you need loads of power to back off the trailer, to the extent it's nearly as hard to "unstick" the boat as my old all-bunk trailer used to be.

[Into The Blue]

Would you think that more rollers might solve it?
SBS have quoted £40 per side for the roller supports which sounds reasonable but I could do with more views as to others that have had the same reluctance for the rib to roll off the trailer.

[BogMonster]

Don't know - maybe. The keel roller brackets are welded on mine - not sure you could easily add more without putting a spine down the middle of the trailer and that would bugger up my galvanising.