Ex-stock constant force springs from Lee Spring offer a flat force curve over most of its extension range. It is this major “table-top mountain” shape of force curve which ensures their value for ...

The Lee Spring extension type of constant force spring represents the most basic, yet most versatile, type of constant force spring. It is a pre-stressed flat strip of spring material which is formed ...

Constant Force Springs from Lee Spring offer an excellent mechanism for applications where a constant load is required. Some of the many applications of constant force springs are in counterbalances, ...

If you are designing a product that requires any sort of smart-motion precision, spring parts that apply constant force or constant resistance are key mechanical design elements to consider. Two of ...