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Re: V configuration on front wheels on tricycle styles--Why?
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Posted by Bill on January 13, 2000 at 13:35:24 from (209.182.69.83):
In Reply to: V configuration on front wheels on tricycle styles--Why? posted by Mark Selby on January 13, 2000 at 09:54:49:
The V of the front wheels creats camber. Since the tire is on an angle, the center of the tire has a larger diameter in relationship to the ground. This is especially true with 3 rib tires. With the angle as it is, the outside edge of the tire has a smaller diameter than the center of the tire, so it must fight to keep up with the center of the tire as it turns. This makes the wheel want to turn towards the outside. Both wheels are doing this, and it creates a steady drag on the tires, and keeps the front wheels pointing straight ahead. This is most noticable on the pavement. I suppose it sounds goofy, or made up, but I got that information from a very old engineering book on automobiles, writen about the turn of the century. ONe of the books still available on the Model A ford has diagrams which show how this works in practice. This is why cars have caster and camber, to keep the car going straight without haveing to constantly correct it. I should also mention that some of the Farmall F20s came with a sever camber on the front wheels. I have not yet found out why, or what the engineering thought was on that one. I will check with the old geezers in the next town who have scores of F20s and a few F30s left from the nearly 100 they once had. They still use them to farm, and except for an H and a MD, thats all they use for big chores. If they dont know, I;ll be surprised.
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