Din 5480 Spline Dimensions Pdf Jun 2026

A provides engineers, machinists, and quality inspectors with instant access to critical data, including:

). Unlike other standards where the diameter is tied strictly to the gear teeth, DIN 5480 was created to make mechanical assemblies easier by matching spline diameters to standard ball and roller bearing sizes. 1. Decoding the "Name" (Designation) A typical DIN 5480 specification looks like this: DIN 5480 – W 120 x 3 x 38 x 8f : "W" (Welle) denotes a (External spline), while "N" (Nabe) denotes a (Internal spline). : This is the Reference Diameter

Class and 8 are industry standards for automotive and general machinery. Fundamental Deviations (Position Letters) din 5480 spline dimensions pdf

: "W" (Welle) denotes an external shaft; "N" (Nabe) denotes an internal hub.

Note: Minor variations in the addendum and dedendum modifications exist based on whether the fit is side-bearing (standard) or diameter-bearing. 5. Fit Types and Tolerances Decoding the "Name" (Designation) A typical DIN 5480

Includes the reference diameter, tip diameter (major), and root diameter (minor) for both the shaft and the hub. Tooth Geometry:

⚠️ Warning: Many “free PDFs” circulating online omit tolerances or contain OCR errors. Always cross-check with an official extract. Note: Minor variations in the addendum and dedendum

This table outlines standard configurations for common industrial modules. The exact tip and root diameters vary slightly based on the chosen fit class and tolerance. Standard Spline Configurations Standard Designation Reference Dia ( External Tip Dia ( da1d sub a 1 end-sub Internal Tip Dia ( da2d sub a 2 end-sub W 30 x 2 x 13 W 40 x 2 x 18 W 50 x 2 x 23 W 60 x 3 x 18 W 80 x 3 x 25 4. Fits and Tolerances Explained

The Definitive Guide to DIN 5480 Spline Dimensions: Understanding Involute Splines