Shaft core with pressed squares

Using hydraulic presses and special pressing tools a "double" square is pressed on the shaft core. In a second step the double square is cut in the middle giving shaft cores with two pressed squares. The minimal wrench size of the squares is given by the diameter of the shaft core, the length is given through the pressing tool. The pressing gives a compaction of the material leading to a very good force transmission. For some special cases it is possible to add more stability to the square ends by welding or soldering.

• Automotive industry
• Gardening tools
• Mechanical engineering