Steering spline for automobile steering mechanism has 2 conical sections in transition zone between toothed cylindrical section and coaxial greater diameter cylindrical section

摘要

The steering spline (1) provides a one-piece coupling between a steering shaft (6) and a toothed steering rack (4) and has a cylindrical section (3) formed with helical teeth in its outer surface and a coaxial cylindrical section (2) of greater diameter, provided with a seating for the end of the steering shaft. The transition zone between the 2 cylindrical sections has at least 2 conical sections with different cone angles and at least one rounded section with a given curvature radius between the outermost conical section and the cylindrical section of greater diameter.