I would observe that I think second guessing is a healthy part of any well controlled process and the goal of this framework is certainly not to restrict second guessing, rather itâs to improve judgment quality and thereby the acceptability and credibility of the judgment with those charged with second guessing them.
They can be flat root, fillet root, or major diameter fit. The purpose of this type of spline is to allow for angular misalignment between the shaft and mating detail. This is accomplished by crowning the male tooth. The tooth (usually) has a symmetrical crown about the centerline of the spline face-width.
This decreases the possibility of fatigue cracking in these areas. Involute splines come in several varieties: Flat root side fit, fillet root side fit, and major diameter fit. The flat root side fit has a slightly larger minor diameter (male) and smaller major diameter (female) than the fillet root spline. The transition area between the side of the tooth (male) or space (female), and the corresponding minor diameter (male) or major diameter (female) exhibits a smaller radius than in the fillet root spline. These splines may be used when strength is needed ...