On Thursday, September 16, 1999 12:41 PM, Barry Schwartz
[SMTP:bschwart@pacbell.net] wrote:
> With the CV type, it may also be in the shaft, or be in
> one or both of the joints themselves where the shaft is inserted into the
> joint assembly, but in either case, there is a spline of some kind to
> accommodate the changing length of the shaft as required buy the
suspension
> geometry.
The most common type of CV joint setup (used on 80-90% of FWD econoboxes)
has the 'spline' built into the inner joint. The outer 'race' is simply
elongated, so the balls and inner 'race' can move axially.
> The principle advantage of using CV joints, is the loads imposed
> on the "intermediate" portion of the shaft is more constant, and as such
it
> and the joints, take less of a beating than simply using two standard
> joints.
There is also less vibration, because the intermediate (axle) shaft is not
being constantly accelerated and decelerated. IMO this, combined with the
fact the trailing arms don't do a very good job of holding the stub axle
axis parallel to the diff axis, is the main advantage to using CV joints
over U joints in an IRS.
Randall
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