: Ensure it strictly follows the Standard + Type (W/N) + Nominal Diameter + Module + Number of Teeth + Tolerance format. Verify Tip Clearances : The shaft tip diameter ( da1d sub a 1 end-sub ) must never interfere with the hub root diameter ( df2d sub f 2 end-sub
This article breaks down the DIN 5480 series, explains where to find official dimension tables, and guides you through verifying their authenticity.
Module 1.5, 26 teeth, Class 8f.
: DIN 5480 profiles use a specific fillet radius at the tooth root to minimize stress concentration. Ensure your wire EDM, hobbing, or broaching tool accommodates this radius. din 5480 spline dimensions pdf verified
| Parameter | PDF Value | Verified Value (DIN 5480-1:2006) | Error | | :--- | :--- | :--- | :--- | | Module 1.0, z=28, da2 | 30.00 mm | 30.50 mm | -0.5 mm (critical) | | Over-ball diameter (external, dm=1.8mm) | 33.742 mm | 33.698 mm | +0.044 mm (out of tolerance) | | Fit class table for 9H | Missing | Provided | N/A |
The keyword phrase includes "pdf verified," which addresses a critical real-world need. While many unofficial PDFs exist online, using an unverified or outdated copy can lead to expensive manufacturing errors. The only way to guarantee you are working with the correct, legally binding version of the standard is to obtain it from an authorized publisher. These sources provide the official PDF, complete with digital watermarks and certification.
External splines use lowercase letters to dictate the type of fit: : Ensure it strictly follows the Standard +
: Loose or clearance fits, ideal for components that must slide axially under zero load. h : Standard sliding fit with minimal backlash.
(Root Diameter): The innermost diameter at the base of the tooth spaces.
: Use 7H/8f or 9H/9g . Ideal for removable parts. : DIN 5480 profiles use a specific fillet
The PDF must clearly distinguish:
When downloading a verified technical datasheet, check the tolerance section. DIN 5480 uses a combination of numbers and letters to define fitment quality and backlash.
When drafting CAD models or verifying quality control, these formulas are essential: Addendum Modification: Shaft Tip Diameter ( ): Shaft Root Diameter ( ): (Often simplified as for standard) Pressure Angle: Where to Find "DIN 5480 Dimensions PDF Verified" Documents