Re: Scotc (long)

Posted by Janicholson on January 02, 2006 at 08:34:53 from (66.173.50.182):

In Reply to: Re: allen in ne possible wf headache cure posted by scotc on January 01, 2006 at 21:04:51:

Not being mean!!!
Making the radius arms on the spindle longer will reduce their rotation of the spindle, not increase it. I would shorten the radius arms on the spindle, and make sure stops were not affecting the eventual rotation. Ideally the following description will produce the best turning in a tractor (not necessarily a high speed auto/truck.

A (theoretical) line, extended from the rear axle, in the direction of the turn, will be intersected by a single point where the centerlines of the front wheel spindles cross each other, and the rear axle line. This point is the exact center of the turn being performed.

With regular steering linkages, this is only an approximation at best. Any time either tire is dragging, or pushing it is wasting energy that is hindering the actual turn.

In a Left turn (for instance) with a WFE having its track set to the same as the rear wheels, the left tire would need to be turned entirely perpendicular to the straight ahead position. This is usually not possible due to the tierod angle becomming excessively straight to the radius arm and/or going "overcenter". Thus they are often not going to spin like a trike.

Just an interesting topic.
JimN

Replies:

• Re: Scotc (long) Allan in NE 09:21:16 01/02/06 (1)
  • Re: Scotc (long) Janicholson 14:59:31 01/02/06 (0)

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