Constant Force, or “clock” springs

Featured Product from Century Spring Corp.


Constant Force Springs
A constant force, or “clock” spring, is a roll of prestressed strip which exerts a nearly constant restraining force to resist uncoiling. The force is constant because the change in the radius of curvature is constant. This is true if the change in coil diameter, due to buildup, is disregarded. Long extension capabilities, constant torque and virtual absence of intercoil friction have led many designers to specify constant force springs in such applications as brush springs for motors, counterbalance springs for window sashes and carriage return springs for typewriters. Constant force motor springs are used to drive mechanisms for timers, movie cameras and cable retractors.

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Custom Springs
Century Spring’s reputation for superior quality, on-time delivery and on-target pricing of our custom springs is well known throughout the industry. If you can’t find a stock spring that meets your needs, we can fabricate it for you.

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Century Spring Corp.
Century Spring Corp. (CSC) was founded in 1927 as a full-service manufacturer of high-quality custom springs. From the beginning, CSC has been committed to providing our customers with the finest quality products and service in the industry. In 1997, Century Spring Corp. joined with MW Industries Inc. to become one of the top spring and specialty fastener manufacturers in the nation.

CSC is dedicated to maintaining its leadership in the spring industry. By listening to our valuable customers, and providing them with what they need to be successful, we are able to reach our goals and help our customers achieve theirs. Because we make customer satisfaction our NUMBER ONE priority, we have received numerous customer service awards for on time delivery, shipping accuracy, and quality control.

With over 90 years of experience, our customers rely on us to meet all of their spring needs as their one and only source for springs. You have our assurance that your business will receive our complete attention and our commitment to the highest level of customer support possible.

Certification
Century Spring Corp., an MW Industries company, is ISO 9001:2015 Certified, ITAR, RoHS and REACH compliant and a member of Spring Manufacturer's Institute (SMI). Our QMS system is also AS9100 rev. D certified for aerospace custom part orders.