Re: PTO shaft angle to shartrp

Posted by Janicholson on November 07, 2005 at 06:51:08 from (199.17.6.175):

In Reply to: Re: PTO shaft angle to shartrp posted by mattd on November 06, 2005 at 17:04:09:

Mattd's idea is good.
A double joint can be found in the center joint of mid 70's Cadillacs. it is a constant velocity system with two regular u-joints and a ball/socket centering system between them. A drive shaft shop (or four wheel drive shop) can put this together.

Another reality check could be your joint phasing.
all shaft assemblies must have the u-joints aligned so that the shaft has the cap holders on the same geometric plane. This results in the yolks on the ends also having the same orientation as each other.
Regular (single cross) u-joints cause serious accelleration and decelleration every revolution when working at an angle. If they are in phase, they cancel each other out. if out of phase they are nasty, and will breakup from viabration.
Both joints on a shaft should be running at about the same deflection angle.
Good luck, JimN

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