In case you are unsure of your helical springís physical dimensions, you can use our easy to read how-to-measure diagram to the left. The best way to measure a helical spring is using a dial or digital caliper. To accurately measure your helical springís dimensions, follow the instructions provided below:
-Outer Diameter: Vertically place the spring between the caliperís outside jaws and make sure that they are perfectly aligned with the axis (center) of your springís cylindrical shape.
-Inner Diameter: Place the caliperís inside jaws inside your springís inner diameter while your spring is put at its vertical position.
-Wire Diameter: Keeping your spring vertical, place the caliperís outside jaws on the outer edges of the wire diameter.
-Free Length: Horizontally place the helical spring between the caliperís outside jaws. Make sure you are including the whole part of the spring without leaving any edges sticking out.
-Total Coils: Count your springís coils by looking at your spring horizontally with the tip of the first coil aligned at the center. Begin counting from the second coil and stop at the last coil.