Quote:
Originally Posted by JJDOBBER79
Hi Rom,
Just saw your post and I had an idea. I just went to the boat shop to get a few new rollers for my boat trailer. This might work. They are very similar to pallet jack rollers (I also have one of these), and cheap. The soft rubber ones are no good but the rigid plastic ones (usually blue) that are for tinnies. They are only a roller and usually attach with a rod through the middle and split pins. Maybe this helps  |
Yep, I tracked these down:
http://www.ebay.com.au/itm/POLYURETH...item1c2f09a244
Somewhat cheaper but I suspect friction will be an issue unless I have some kind of ball-bearing set-up. With 8 rollers, around 500kg worth of weight in the dome, maybe 60+ kg per roller minimum. They'll never all be in contact with the ring at the same time, so it could be as much as 150+ kg on any particular roller, worst case scenario.
