Din 5480 Pdf -

| Feature | DIN 5480 | ISO 4156 | |---------|----------|----------| | Modules | 0.5 to 10 mm | 0.5 to 10 mm | | Pressure angles | 30°, 37.5° | 30°, 37.5°, 45° | | Fit classes | Uses letters (H, js, k, etc.) | Uses numerical codes (e.g., 5H, 6H) | | Centering | Side, major, minor | Primarily side fit | | Root shape | Full radius | Flat root or radius |

| Teeth (z) | Reference Diameter (d(_B)) | Major Diameter ext. (d(_ae)) | Minor Diameter int. (d(_ii)) | Root diameter ext. (d(_fe)) | |-----------|----------------|-----------------------------|-----------------------------|----------------------------| | 21 | 42.0 mm | 46.000 mm | 38.000 mm | 36.800 mm | | 24 | 48.0 mm | 52.000 mm | 44.000 mm | 42.800 mm | | 30 | 60.0 mm | 64.000 mm | 56.000 mm | 54.800 mm | Din 5480 Pdf

The reference diameter (d(_B)) = module × number of teeth (m × z). All other diameters are derived using formulas provided in the standard’s text. Common Use Cases for DIN 5480 Splines 1. Automotive Steering Systems Electric power steering columns often use small-module (1 or 1.25) DIN 5480 splines to connect the steering wheel to the column shaft. 2. Aerospace Actuators Flight control actuators require high precision splines. DIN 5480 with 37.5° pressure angle provides better centering under vibration. 3. Machine Tool Spindles Many CNC milling spindles have internal DIN 5480 splines to drive tool holders or drawbars. 4. Agricultural and Construction Equipment Tractors use large-module (4–8 mm) splines for PTO (power take-off) shafts where high torque and shock loads occur. Differences Between DIN 5480 and ISO 4156 If you are comparing a DIN 5480 PDF with an ISO 4156 document, note these nuances: | Feature | DIN 5480 | ISO 4156

DIN 5480 – W 50 x 2 x 24 x 9H