Re: Why narrow front tractors

Posted by Ken Macfarlane on July 29, 2005 at 12:17:38 from (142.166.9.50):

In Reply to: Re: Why narrow front tractors posted by David Norton on July 28, 2005 at 13:46:52:

David, don't mean to argue too bad but you are a bit off. On a whole, narrow front tractors may have fewer roll-overs, but if we take the same model available in wide or narrow and drop in on a tilt table and start tipping with the rears set narrow...

The narrow front *will* roll first. In a simple static test there is no other outcome possible.

In bouncing fields and varied wheel spacings and different operators anything is possible.

We could draw up a little model and do some calcs for fun but we would see with the rear tires set narrow enough, the wide front is always more stable.

With the rear tires set as wide as possible, there will come a point where the difference in stability is negligable.

As part of this too, some wide fronts are only minimally more stable. Look at some of the IH's with a very low axle pivot relative to the engine height. In these cases you will find very little difference in stability.

Utility tractors are nowadays designed with a very high pivot for stability. This actually decrease the ride comfort a bit as bumps will push the tractor slightly sideways but on sidehills the stability is increased.

Follow Ups:

• Re: Why narrow front tractors David Norton 06:31:26 07/31/05 (0)

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