Splines governed by this standard are measured in imperial units (Diametral Pitch). They are preferred over straight-sided splines because they are self-centering and possess higher strength at the tooth base. standard - ansi b92.1-1996
Specific classes (Classes 4 through 7) that allow manufacturers to balance precision with cost-effective production. ansi b 92.1 pdf 38
The ANSI B92.1 standard (most commonly referenced in its or 1996 revisions) provides comprehensive guidance for straight (non-helical) involute spline teeth. It defines: Splines governed by this standard are measured in