What is a clock spring?

A clock spring, also known as a clock mainspring or main spring, is a spiral-wound steel wire spring that powers mechanical clocks and other timekeeping devices. The clock spring stores energy when wound up and releases it slowly to power the movement of the clock's hands. It is a key component in keeping accurate time in mechanical clocks.

Clock springs come in various sizes and strengths, depending on the size and weight of the clock they are powering. They are typically made of high-quality steel that is tempered and heat-treated to ensure durability and reliability. Clock springs are designed to last for many years without losing their ability to store and release energy effectively.

In addition to powering clocks, clock springs are also commonly used in other mechanical devices such as toys, cameras, and musical instruments. They are an essential component in many mechanical systems that require precise and reliable movement.