| Feature | DIN 5480 | |---------|----------| | Centering | Flank (side) only | | Pressure angles | 30° (std), 37.5°, 45° | | Module range | 0.5 – 10 mm | | Tooth count range | 6 – 82 | | Key formula | dref = z * m | | Tolerances | 4 to 9 (H, f, g, h) | | Inspection | Over-pins (Mdk) + runout | | Supersedes | DIN 5463, 5464, 5472 |
Tractors use large-module (4–8 mm) splines for PTO (power take-off) shafts where high torque and shock loads occur. Din 5480 Pdf
Electric power steering columns often use small-module (1 or 1.25) DIN 5480 splines to connect the steering wheel to the column shaft. | Feature | DIN 5480 | |---------|----------| |
DIN 5480 is a German industrial standard (Deutsches Institut für Normung) that specifies the dimensions, tolerances, and inspection methods for involute splines. Unlike older standards such as DIN 5462 or DIN 5463 (which used straight-sided splines), DIN 5480 is based on the involute tooth system—the same geometry used for gears. This allows for higher load capacity, self-centering action, and easier manufacturing using gear hobbing or shaping machines. Unlike older standards such as DIN 5462 or
The standard officially replaced older spline standards in the 1980s and has since been harmonized with international standards like ISO 4156 (though specific differences remain).