Two Basic Types Of Power Springs Broadcast Articles

Power springs are sometimes referred to as clock springs, spiral torque springs, flat coil springs, motor springs, or brush springs. They are made by tightly wrapping the spring material around a spindle in a circular shell and connecting its free end to a metal or plastic shell. They aim to store and release rotational energy in the form of torque, forming a power spring that can provide high force output in very small space requirements.
Power spring
There are two basic types of power springs - 'conventional power springs', which spiral from the center in the same direction as the winding. Their advantages are low stress, long cycle life, and easy to manufacture. Alternatively, a portion of the shape of a pre-stressed power spring is helical in the opposite direction of the winding, which can generate higher stress, resulting in a higher torque output of up to 25% compared to traditional power springs, and a flatter torque gradient.
Both methods have their advantages, and the best choice depends on the application and requirements. Typically, these springs are designed specifically for customer specific applications and are used in automotive, aerospace, defense, medical, industrial, electronic markets, and commodities.
When considering power spring design, there are four key factors, such as hole/shaft (ID/OD), load, working height of applied load, and required material, as well as other input parameters including material thickness, wire, radial wall, number of active coils, working height, and working height load.