: These are adjusted based on the profile shift to maintain a standardized clearance ( ), typically Addendum ( ) and Dedendum ( ) : Standard values are often for the addendum and for the dedendum in hobbed splines. Verification and Measurement Din 5480-1 | PDF - Scribd
that is often chosen to match standard bearing bores to simplify assembly. Core Geometric Parameters The standard specifies a fixed pressure angle (
Understanding a spline designation is the first step to identifying the correct part. For example, the designation DIN 5480 W 8 x 0.8 x 30 x 8 x 7h breaks down as follows:
Working with the wrong spline dimensions can lead to catastrophic equipment failure, production delays, and significant financial loss. This is why verifying your data against an official, certified PDF of the standard is not just good practice—it is a non-negotiable requirement for professional engineering work. A "verified" PDF ensures your design is based on the most current, legally binding specifications. din 5480 spline dimensions pdf verified
A PDF containing DIN 5480 spline dimensions is simply by bearing the standard number. Rasterization, revision drift, and OCR corruption are systematic risks. Engineers must apply a formula-based verification protocol, focusing on reference diameter, over-ball measurement, and fit class tables. Only PDFs that pass the consistency tests outlined in this paper should be used for CNC programming or gauge design.
| Parameter | Value (mm) | |-----------|------------| | Module (m) | 2 | | Teeth (z) | 24 | | Reference diameter | 48.0 | | Tip diameter (da) | 52.0 | | Root diameter (df) | 44.0 | | Pressure angle | 30° | | Tooth thickness (Sn ref) | ~3.14 mm nominal (depends on tolerance) |
) as the primary sizing metric. This design philosophy allows engineers to select a spline size that directly matches standard bearing diameters or shaft sizes. Core Geometric Parameters : These are adjusted based on the profile
Used strictly when high-precision coaxial alignment is mandatory. Verifying PDF Data and Tolerances
When matching parts or verifying machining outputs against a DIN 5480 PDF data sheet, follow this quality control checklist:
If you want, I can generate a (text/ASCII) of standard module + d_ref combinations for quick reference. Just say “yes”. For example, the designation DIN 5480 W 8 x 0
External Spline (Shaft) Base Equations:External Spline (Shaft) Base Equations:
DIN 5480 specifies involute splines with parallel-sided teeth for shaft-to-hub connections, widely used in mechanical power transmission where precise axial positioning and torque transfer are required. Below is a concise, verifiable summary of the key dimensional features and design considerations you can use as a quick reference. For official tables and tolerances, consult the published DIN 5480 PDF standard.
: The 1991-10 editions of DIN 5480 have all been superseded by the 2006/2015 editions. However, these older documents are sometimes referenced for legacy systems. They are available on sites like Intertek Inform for around US $38.50.
Standardized classes include 7H, 9H, and 11H.