The specific mention of "38" often refers to a particular section, page, or table—such as the data for or specific tooth geometry tables—within the broader ANSI B92.1 document. Overview of ANSI B92.1
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 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: The specific mention of "38" often refers to
Specific classes (Classes 4 through 7) that allow manufacturers to balance precision with cost-effective production. ansi b 92.1 pdf 38