Thanks for the link.
Clarification;
They seem to say that the ideal is 1 degree and that 3 degrees shouldn't be exceeded.
"Parallel at each end" is something that bears some thought in this (flail mower) context.
I doubt that most of us are thinking much about it when messing with the rear roller, top link, skid shoes and lift arm height to get the desired cutting height.
I don't particularly like their example of wheel/tire balance. Sure the mass of some shafts can be greater than that of some tires, but the mass of a tire is much farther from the axis, balancing is therefore more important due to the moment of inertia. I don't think I've seen band clamps around drive shafts in several decades, it used to be standard practice to balance a truck drive shaft with a couple of those.
Yes, yes, yes to phasing. I'm not sure if the "triangular" cardan shaft permits or disallows 120 degree screw ups, but it is certainly something to watch for when cutting shafts.
Clarification;
They seem to say that the ideal is 1 degree and that 3 degrees shouldn't be exceeded.
"Parallel at each end" is something that bears some thought in this (flail mower) context.
I doubt that most of us are thinking much about it when messing with the rear roller, top link, skid shoes and lift arm height to get the desired cutting height.
I don't particularly like their example of wheel/tire balance. Sure the mass of some shafts can be greater than that of some tires, but the mass of a tire is much farther from the axis, balancing is therefore more important due to the moment of inertia. I don't think I've seen band clamps around drive shafts in several decades, it used to be standard practice to balance a truck drive shaft with a couple of those.
Yes, yes, yes to phasing. I'm not sure if the "triangular" cardan shaft permits or disallows 120 degree screw ups, but it is certainly something to watch for when cutting shafts.