DIN 5480 Spline Tolerance
DIN 5480 Spline Tolerance
(OP)
I've been working with ISO tolerances for a while and have been puzzled by this. Are the classes used for splines the same as for general holes and shafts even though the nomenclature is reversed?
A typical call out for a shaft could be 150f8. However the tolerance on a spline shaft would be 8f. Is this the same system? Or is there a separate system for splines. Metric threads reverse the letter/number arrangement also. Can anyone tell me why?
A typical call out for a shaft could be 150f8. However the tolerance on a spline shaft would be 8f. Is this the same system? Or is there a separate system for splines. Metric threads reverse the letter/number arrangement also. Can anyone tell me why?





RE: DIN 5480 Spline Tolerance
The concept of using letters/numbers is similar as in ISO fits for shafts, but here they apply to different features, mostly tooth thickness/space.
The DIN5480 (October 1991) standard explains the concept in details and includes charts with precalculated values for splines. I highly recommend to buy it. There is also the English version.
Check also the newest ISO4156 (October 2006) standard.
RE: DIN 5480 Spline Tolerance
I knew the tolerance applied to the tooth thickness or space width. I was hoping I could make some sense out of it and use the tools I already have. That doesn't appear to be the case. I get to buy more reference material.
Thank you.
RE: DIN 5480 Spline Tolerance
or space width. Our buddies across the pond do seem to be very standard oriented.
RE: DIN 5480 Spline Tolerance