Available in stainless steel. Minimum order value of $20. Shipping to the US only.

clock springs

Clock Springs

Plymouth Spring presents an extensive selection of wave spring designs, ideal for various requirements. As leaders in wave spring manufacturing, our wave springs are engineered using unalloyed spring steel and stainless steel, tailored to align with the specifications of your project.

What Is a Clock Spring

A clock spring derives its name from the motion it demonstrates. Clock springs are commonly found in watches, but their applications span across numerous objects and industries. Instead of using wire torsion springs, clock springs are crafted from flat metal strips. They may also be referred to as flat torsion springs or a type of flat spring. Clock springs are engineered to generate torsional force through circular movements. As the spring coils around itself with applied force, it produces more torsional force while attempting to uncoil. Conversely, reduced force is exhibited as the spring unwinds, contrasting with the functioning of a constant torque spring.

The term clock spring is frequently used interchangeably with:

Power spring
Motor springs
Mainsprings (watchmaking)
Hair springs
Balance springs

At Plymouth Spring, we distinguish between clock springs and power springs. For power springs, the coils are wound tighter, and rotating spirals are in contact with each other, requiring lubrication but resulting in greater torsional force applications.

Legend:

T.C. = Total Number of coils
R = Spring Rate, Nmm per degree of torque

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Advantages of a Clock Spring

While appearing similar to power springs and constant torque springs, clock springs possess open coils with equidistant spacing. When mounted correctly, this reduces friction to zero. Furthermore, they do not necessitate lubrication due to the absence of friction among moving elements. However, torque capacity is diminished as a consequence. Clock springs can be mounted in parallel within an application to supply greater torsional force if required. They also offer a cost-effective solution for torsional spring needs.

Lesjöfors Stock Spring US's Clock Springs Manufacturing

At Lesjöfors Stock Spring US, our standard range of clock springs is fabricated from rounded edge stainless steel, granting enhanced fatigue life compared to other materials used in manufacturing these springs.

Common Uses of Clock Springs

Clock springs are prevalently employed in steering mechanisms, facilitating wheel rotation while maintaining connectivity to a range of electrical systems. Numerous devices that demand a smooth retraction system operate with the aid of a clock spring. Mechanical timers, lanyards, and wind-up toys are just a few examples of products that function using clock springs.

Fitting Your Clock Springs

Clock springs are advised to be assembled on a grooved shaft complemented by a milled or rounded end. To prevent the spring from assuming an eccentric shape, thereby compromising torque force and spring life, the outer end should be secured as illustrated in the clock springs section of our springs catalogue. Our catalogue also contains information on permissible static load and torque angles.

Order Clock Springs Online Today

As an experienced clock spring manufacturer, we are here to guide you in optimizing the use or application of our products. Rest assured, no matter your needs, we are confident that our stock of clock springs will meet all your specifications. Don't hesitate to contact us using our online form if you need help. Call us at +1 (860) 584-0594 for further support regarding allowable torques or assembly-related inquiries.