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The standard specifies the requirements for straight-sided splines in the heavy series , designed for both fixed and moving shaft-hub connections . This standard is critical in mechanical engineering for transmitting high torque through thin-walled hubs, as its 0∘0 raised to the composed with power pressure angle prevents hub expansion from radial forces. Key Specifications of DIN 5464

DIN 5464:2010-03 , which replaced the older 1965 edition. Pressure Angle: 0∘0 raised to the composed with power (straight flanks).