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Life Cycles of a Variable Force “V” Spring

A frequently asked question concerns the life cycle rating of a Variable Force Spring. In this blog, we will focus on this discussion and how the life cycles are analyzed. Let’s first give a brief description of what a variable force spring is and what it looks like.

Constant Force Spring Life Cycles

When designing a Constant Force Spring one must begin by taking a hard look at life cycle requirements. This decision will have an effect on every other decision made and ultimately could lead the design down the wrong path. If done correctly, the design can fall into place and allow for a successful project. First,…

Mounting a Constant Force Spring on a Spool

One of the most common questions about Constant Force Springs concerns the mounting of the spring on a spool. For starters, the spring doesn’t have to be mounted on a spool; it can be placed in a cavity or on an undersized bushing or pin. There are differences in the performance of each design so…

Spring Edge Conditions: Round Edge vs. Deburred Edge

When considering a spring design, it’s important to look at the edge condition of the steel. There’s a vast amount of technical information concerning the edges of the slit strip, but in this blog, we’ll be focusing on the basic characteristics of each edge condition and its benefits.

Environmental Factors for Constant Force Springs

Vulcan Spring’s products, including constant force springs, are primarily manufactured from AISI Type 301 Stainless Steel. The resistance of this steel to general atmospheric corrosion is very good. However, they may be adversely affected when exposed to certain chemicals or environments, which may induce hydrogen embrittlement, stress corrosion cracking and corrosion fatigue.

Vulcan Spring Launches Re-Designed Website

Telford, PA., USA – Vulcan Spring and Manufacturing Co., a leading designer and manufacturer of flat steel springs and related assemblies for diverse global markets, announces the launch of their new full-featured re-designed website at The new site offers simpler navigation, more content including videos and multimedia, the fast Quickfinder search application, and more…

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