. Key dimensions are calculated using the following formulas: Reference Diameter ( d sub cap B The primary nominal size (e.g., 50 mm). Defines the tooth size (common ranges 0.5 to 10 mm). Number of Teeth ( Calculated as or similar, depending on profile shift. Pitch Diameter ( Base Circle ( Spline Designation (Decoding the Code) A typical callout looks like DIN 5480 W 120 x 3 x 38 x 8f elle (Shaft/External) or abe (Hub/Internal). Reference diameter ( d sub cap B Number of teeth ( Tolerance class (8) and deviation series (f). Tolerances and Fits Din 5480-2 | PDF | Engineering Tolerance | Gear - Scribd 29 Dec 2012 —
Verification protocol: Recalculate M for one example using the PDF’s stated ball size. If the result deviates by >0.02mm from the PDF table, the document is unverified. din 5480 spline dimensions pdf verified
| | Value | | --- | --- | | Document title | DIN 5480-1:2019 | | Author | DIN | | Publication date | 2019 | | Spline type | Straight-sided spline | | Number of teeth (z) | 10 | | Pitch circle diameter (d) | 50 mm | | Tooth width (b) | 10 mm | | Tooth height (h) | 5 mm | Number of Teeth ( Calculated as or similar,
Letters a–g are slip fits; h is a "line-on-line" fit; j–v are interference fits. Tolerances and Fits Din 5480-2 | PDF |
Because direct measurement of space width or tooth thickness is difficult, dimensions are verified using (balls or pins):