Fazed
Member
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- 251
Chaps
I've recently built a pair of doors for a friend's barn that are huge. 10ft x 14ft made from 40x40 box and clad with wiggly tin. It took six of us to man-handle them onto their hinges.
The issue we have is that we used a trailer jockey wheel to support the ends of each door as they were rated to something like 150kg, where normal gate jockey wheels are about 70kg.
Now, while they do the job in supporting the ends of the doors, due to them having to be locked-off, they don't follow the contours of the concrete floor which undulates a fair bit causing them to lose contact with the ground.
I'm thinking of ways to make a pair of sprung jockey wheels like these:
... but cosisting of a beefy box section frame welded directly to the door, a heavy duty castor wheel (which I have, rated to something like 250kg) and a car shock absorber spring.
I'm having trouble trying to work out what spring rating I would need so that it won't sag too much but will still follow the contours of the floor - or doesn't it really matter?
Any suggestions gents???
I've recently built a pair of doors for a friend's barn that are huge. 10ft x 14ft made from 40x40 box and clad with wiggly tin. It took six of us to man-handle them onto their hinges.
The issue we have is that we used a trailer jockey wheel to support the ends of each door as they were rated to something like 150kg, where normal gate jockey wheels are about 70kg.
Now, while they do the job in supporting the ends of the doors, due to them having to be locked-off, they don't follow the contours of the concrete floor which undulates a fair bit causing them to lose contact with the ground.
I'm thinking of ways to make a pair of sprung jockey wheels like these:
... but cosisting of a beefy box section frame welded directly to the door, a heavy duty castor wheel (which I have, rated to something like 250kg) and a car shock absorber spring.
I'm having trouble trying to work out what spring rating I would need so that it won't sag too much but will still follow the contours of the floor - or doesn't it really matter?
Any suggestions gents???