Once installed, these springs pull back with the same amount of force no matter how far you extend them. Compact and tightly coiled, they extend to multiple times their length to pull objects in a linear …

From spring-driven reels to constant torque motor assemblies, we provide the right balance of tension and durability to support heavy-duty fast-charging cables.

Constant force springs are used to drive mechanisms for timers, movie cameras, and cable retractors. It is recommended to leave at least two wraps of the spring coiled at all times during use. The cycle life …

Helwig offers a wide range of replacement spring assemblies for constant force brush holders, including those used in electric motors, generators, and turbine ring magazines. Our constant force springs are …

Long extension capabilities, constant torque and virtual absence of inter coilfriction have led many designers to specify constant force springs in such applications as brush springs for motors, …

A constant force spring provides a smooth, uniform load through its full length of travel. This type of spring comes in compact package sizes, offers extensive linear range, and yields strong force within …

Engineered for consistency and reliability, our spring motors provide the constant force necessary for automated applications. Whether driving consumer devices or industrial machinery, these motors …

It is a pre-stressed flat strip of spring material which is formed into virtually constant radius coils around itself or on a drum. When the strip is extended (deflected) the inherent stress resists the loading …

Because the restoring force of a constant torque spring is concentrated in the portion of the ribbon nearest the roll, these springs have practically no limitations on extension speed or acceleration, …

Because they provide a uniform force, constant force springs are used in many industries as a retraction element. They can be used as tension/compression springs for long extensions with constant force …