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Identifying a spline

Identifying a spline

Identifying a spline

(OP)
Help, I am trying to identify an involute spline by measurement on a Klingelnberg machine.  Accuracy is very important and the data suggests a close to standard 40teeth 40/80 fillet root, side fit spline, however either there is a profile error in the spline or it has a pressure angle of around 33degrees.  Does anyone know of a spline standard with this pressure angle, is it more likely that the spline just has poor form or is it the fact that the spline has been carburised and has probably distorted?
Any thoughts would be much appreciated.  Thanks

RE: Identifying a spline

I do not believe anyone would
cut a special pressure angle.
Sometimes they do use profile
shifts and cut them on larger
diameters.  Carburizing would
not create that great a difference.
What does the mating part
indicate? If they cut a 30 degree
pressure angle on a larger blank
you might have the 33 pressure
angle at the larger radii.
How did you measure the pressure
angle?

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