Spline Dimensions: fillet root
Spline dimensions for three families: (1) ANSI B92.1-1970 (R1993)/1996 involute splines — flat root side fit, fillet root side fit, and major diameter fit, 30-degree pressure angle, diametral pitches 2.5/5 through 20/40; (2) ISO 14:1982/2004 straight-sided (parallel-sided) splines — light and medium series, 6/8/10 splines, metric mm; (3) DIN 5480-2:2015 metric involute splines — 30-degree pressure angle, modules m=2 and m=3, reference diameters 12–207 mm.
| spline type | record id | base circle dia in (in) | circular pitch in (in) | diametral pitch | fit class | major dia ext in (in) | major dia int in (in) | minor dia ext in (in) | minor dia int in (in) | module equiv (mm) | num teeth (count) | pitch dia in (in) | pitch dia mm (mm) | pressure angle deg (deg) | root type | standard | tooth thickness in (in) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| fillet root | fil 8 24 | 2.5981 | 0.3927 | 8/16 | side fit | 3.125 | 3.1 | 2.775 | 2.875 | 3.175 | 24 | 3 | 76.2 | 30 | fillet | ANSI B92.1-1970 R1993 / Shigley's MED 10th Ed. Table 13-4 | 0.1963 |
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