df1=m×(z−1.4+2x)d f 1 equals m cross open paren z minus 1.4 plus 2 x close paren 3. Internal Spline (Hub) Dimensions
To correctly interpret a verified DIN 5480 dimensions PDF, you must understand the designation string. A typical designation looks like this:
. This is an independent value used for sizing and is not the major or minor diameter. . Indicates the size of the tooth. Number of Teeth ( Class of Fit din 5480 spline dimensions pdf verified
Comprehensive Guide to DIN 5480 Spline Dimensions: Verified Technical Data and PDF Resources
The information provided in this write-up is based on the DIN 5480 standard. For further information and verification, please refer to the official DIN 5480 standard or consult with a qualified engineer or manufacturer. A PDF version of the standard can be obtained from the DIN website or other authorized sources. df1=m×(z−1
DIN 5480 is the international standard for involute splines based on module sizes. Engineers use this standard to design reliable, high-torque connections in automotive, aerospace, and heavy machinery industries. Finding verified DIN 5480 spline dimensions PDFs is critical for accurate manufacturing and preventing catastrophic mechanical failures. Understanding the DIN 5480 Standard The DIN 5480 standard governs involute splines with a 30∘30 raised to the composed with power
DIN 5480−W40×2×18×9HDIN 5480 minus W space 40 cross 2 cross 18 cross 9 cap H This is an independent value used for sizing
Offers a concise breakdown of the DIN 5480 decoding process.
The boundary dimensions differ depending on whether the part is a shaft or a hub, accounting for necessary clearance: Major Diameter ( da1d sub a 1 end-sub ): Nominal Diameter Minor Diameter ( df1d sub f 1 end-sub (Approximate clearance profile) Internal Spline (Hub): Minor Diameter ( da2d sub a 2 end-sub ): Nominal Diameter Major Diameter ( df2d sub f 2 end-sub 3. DIN 5480 Spline Dimension Reference Table
Below is a verified dimensional reference table for common industrial DIN 5480 sizes. These values represent the nominal geometry before tolerances and fit classes are applied. DIN 5480 Designation Number of Teeth ( Reference Diameter ( dBd sub cap B Pitch Diameter ( Shaft Major Dia. ( da1d sub a 1 end-sub Hub Minor Dia. ( df2d sub f 2 end-sub W 25 x 1.25 x 18 W 30 x 2 x 14 W 40 x 2 x 18 W 50 x 2 x 24 W 60 x 3 x 18 W 80 x 3 x 25 Decoding the Designation When reading a DIN 5480 drawing callout, use this key: