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Involute spline data

Involute spline data

Involute spline data

(OP)
Our supplier is using a W80x3x30x25/11a Din 5480 spline using a flat root side fit. I have misplaced my Din 5480 standard and need some information about this spline. If I remember right, the pitch diameter is 75 mm. I need to know the major diameter and the minor diameter.

Thanks for your help

RE: Involute spline data

da=79.4h11
df=73.4 +0/-1.09

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