Extension Spring Component Generator

The Extension Spring Component Generator is designed to calculate plain extension with a correction for additional bending. It uses four basic spring states:

Free	The spring is not loaded (index 0).
Preloaded	Applies the smallest working load to the spring index (index 1).
Fully loaded	Applies the maximum working load to the spring (index 8).
Limit	The spring is deflected to the solid length (index 9).

The Calculation tab has two modes: design and check. During spring design, the wire diameter, number of coils, and spring free length L0 are designed for a specific load, assembly dimensions (L1, L8, H) or for the spring diameter and material. In the check mode, assembly dimensions or spring loads are calculated for the specific spring.

In the Extension Spring Component Generator:

• On the Design tab, set parameters for an extension spring design such as the spring length or hook types.
• On the Calculation tab, set parameters for calculation of an extension spring, loads or spring materials for example.

Tip: The calculation procedure is described in the Engineer's Handbook for both modes and for the calculation in metric and English units. There are other instructions for designing extension springs there.