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Figure 5: Major diameter centered connection with gentle flank fit
The parallel straight sided spline has straight sided teeth on the spline shaft
and straight sided slots on the internal spine. AGMA and ISO. To calculate ad-
dendum and dedendum, the formulas either from the ANSI or the ISO stand-
ard can be used. In a metric calculation like shown before, the ISO tolerance
recommendations are appropriate for diameters and tooth thickness versus
slot width. An example for a straight sided spline is shown in Figure 6.
Figure 6: Parallel straight sided spline
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