Din 5480 Spline Dimensions Pdf Upd ❲ORIGINAL WORKFLOW❳

DIN 5480 splines are almost exclusively ( Flankenpassung ). This means the flanks of the teeth make contact to transmit torque, leaving clearance at the major and minor diameters.

The major and minor diameters (tip diameters for external and internal splines) depend heavily on the specific fit type selected (e.g., flat root or fillet root). Approximates Internal Spline Minor Diameter ( di2d sub i 2 ): Approximates 3. DIN 5480 Nomenclature and Designation Codes

Nominal dimensions and data tables for specific module and diameter combinations.

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Compliance is typically verified using "Go" and "No-Go" spline plug/ring gauges, or via coordinate measuring machines (CMM) calculating the dimension over/between pins .

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The distance between corresponding points on adjacent teeth along the pitch circle: p=π×mp equals pi cross m Major and Minor Diameters DIN 5480 splines are almost exclusively ( Flankenpassung )

) that is independent of the module, allowing for more flexible design and reduced tooling costs. Key Technical Specifications

DIN 5480 is the German standard for involute splines based on reference diameters. Unlike other standards that use the pitch diameter as a starting point, DIN 5480 centers the design on the outside diameter of the shaft, making it easier to match with standard bearings and seals.

For example, the code DIN 5480 W 50 x 2 x 24 x 8h perfectly defines an external spline with a reference diameter of 50 mm, module 2, 24 teeth, and a shaft fit tolerance of 8h . Approximates Internal Spline Minor Diameter ( di2d sub

Here is a glimpse of how the dimensions are structured (example for Module 2): 20 mm Module: 2 Teeth (z): 9 Major Diameter: 22 mm Minor Diameter: 15.5 mm Reference Diameter: 30 mm Module: 2 Teeth (z): 14 Major Diameter: 32 mm Minor Diameter: 25.5 mm Conclusion

da1=m×(z+1)d sub a 1 end-sub equals m cross open paren z plus 1 close paren

Below is an abbreviated reference table for common modules. A complete PDF version of the standard contains thousands of these rows covering all standardized reference diameters. Module 2.0 ( , Pressure Angle = 30°) Reference Dia ( No. of Teeth ( Shaft Major Dia ( da1d sub a 1 end-sub Shaft Root Dia ( df1d sub f 1 end-sub Hub Minor Dia ( da2d sub a 2 end-sub Hub Root Dia ( df2d sub f 2 end-sub 25 mm 30 mm 40 mm 50 mm Module 3.0 ( , Pressure Angle = 30°) Reference Dia ( No. of Teeth ( Shaft Major Dia ( da1d sub a 1 end-sub Shaft Root Dia ( df1d sub f 1 end-sub Hub Minor Dia ( da2d sub a 2 end-sub Hub Root Dia ( df2d sub f 2 end-sub 35 mm 50 mm 60 mm 80 mm