Find springs including industrial springs, custom springs, metal springs, spring distributors and more. From coil springs, compression springs, flat springs to torsion springs, you will find the spring you need. Use the time-saving Request for Quote tool to submit your inquiry to all the spring manufacturers and suppliers you select.
As the world's leading manufacturer of springs, HyTech Spring and Machine produces high-quality compression springs, flat springs, constant force springs, coil springs, extension springs, custom springs and torsion springs. As an ISO 9002 firm, we are here to fill your precision spring needs.
A quality manufacturer since 1937, Reliable Spring specializes in Compression Springs, Extension Springs and Torsion, Double Torsion & Flat Torsion Springs. Wire diameters from .007" to .207". Topnotch design assistance. Complete Secondary Operations. We work with all springs and metal materials.
Whether you need compression springs, torsion springs or extension springs, we've got it all! AARD Spring & Stamping is a spring manufacturer who also does metal stamping and manufactures wire forms. We follow ISO 9002 standards, and have been providing quality and service since 1970.
We make it our mission to quickly deliver the springs you need at economical prices. Our line of coil springs includes extension springs, compression springs, torsion springs & die springs. Stock springs & spring assortments plus custom springs, including carbon steel springs & stainless steel springs.
Lew-El Tool has been manufacturing springs since 1970. Our specialty is custom high quality flat springs which include recoil springs, power springs, motor springs and brush holder springs. From design to final inspections, we provide our customers with quality products and responsive service.
Stanley Spring gives quick responses and turn around time on their custom metal parts and springs. We have 40+ four-slide machines; 30+ spring action coiling machines; 15 torsion machines; 30 punch presses; and CNC spring coilers to manufacture quality and competitively priced metal springs and parts.
Visit Western Spring for complete satisfaction from spring designing to prototyping and short-runs to production runs, we are here for you. Serving numerous industries for many years, our experience will help you choose the right compression, extension, torsion, wire, flat, or custom spring that you need.
At Ajax Wire, in addition to manufacturing a growing list of stock springs, we can produce springs to your specifications, samples or drawings in short or long runs. We also offer several assortments that come with cabinets and display boards. Springs have been our only business for 70 years.
Since 1962, C & M Spring Engineering has been a manufacturer of coil springs, extension springs, torsion springs and compression springs. Our quality control department features state-of-the-art inspection equipment. Our trained staff is ready to answer questions and assist you with your project.
Springs are essential components in many devices, systems
and machinery. Springs can be defined as an elastic member which exerts
a resisting force when its shape is changed. There are three major styles
of springs made by springs manufacturers: flat, spiral and helical. While
springs can be made from a wide range of metals, spring steel is often
used to form the wire into springs. Steel springs are an industrial grade
of steel known for its good elastic and return properties. The elasticity
of a spring facilitates the return of a piece to its original position;
however, it does diminish over time, so special attention should be paid
to a spring's design capacities and material of construction.
Springs manufacturers use various types of wire to make their products.
Braided wire is used to make springs that can handle sudden significant
loads, such as military applications. The heaviest wire that is typically
cold rolled is 5/8”. Huge, straight bars of steel up to 6” in
diameter can be heated red-hot and coiled on special machinery to be
used for heavy duty shock-absorbers. Lightweight wire commonly used in
commercial applications is generally as fine as .01”, but micro-coilers
can be used to wind wire as fine as .002”. While most springs are
made from round wire, flat and square wire can also be used to form springs,
providing a stronger spring. Tubular stock can be formed into springs
as well. Wire springs can be bought in the form of coils or straightened-and-cut
bars. However, buying spring wire in coils is the most economical way,
as straightened-and-cut bars cannot be returned if they are cut too short.
Springs have a vast array of functions in the industrial world. In general,
springs are used for the storing and absorption of energy (as in the
case of a suspension system) and the maintaining of tension or force.
Springs are used as part of a functioning cycle. They also are used to
force a component to bear against, engage and disengage with another
component. Commonly, springs are used to reduce the shock or impact of
a load or another element. Other applications include alarms, aviation,
circuit breakers, electronics, furniture, hardware, instruments and gauges,
office/business machines, solenoid valves and writing instruments.
Springs manufacturers produce a variety of springs. In selecting springs,
it is important to first define the primary spring function in terms
of push, pull, twist or energy storage. If springs are needed for large
deflections, helical compression
springs are a common choice. For solutions
to pull functions, extension
springs are typically used, though drawbar
assemblies and constant force springs may also be used in certain applications.
Torsion and spiral
springs perform twist functions well. The storing
of energy can be accomplished with spiral torsion springs. Manufacturers
will also need to know the atmosphere in which the spring will operate,
the frequency of cycles, the amount of deflection it will undergo, the
cost of the spring in relation to the overall project and the expected
life of the product, in order to determine the appropriate material from
which to make the spring.
Belleville washers
are flat metal doughnuts whose insides are higher than the outsides.
While not a coiled spring, mounting a bunch of belleville washers together
forms a very strong spring.
Clock springs,
also known as “power,” “motor” or “flat
coil springs,” are made from wide, flat stock and are used in
clocks, retractor reels and other machinery. Clock springs are coiled
up like the shell of a snail and have the ability to store great amounts
of rotational energy.
Coil springs
are made by wrapping wire around a cylinder in a helical pattern. Coil
springs are the most standard type and shape of spring.
Compression springs
are open coiled, helical springs that offer resistance to compressive
loading.
Conical compression
springs have a cone-shaped design that provides a solid height
that is lower than a regular spring. Conical compression springs also
provide near constant spring rate.
Constant force springs
are a special variety of extension springs that are well-suited for
long extensions with no load build-up.
Die springs
are a form of compression springs that are engineered to give predetermined
pressure at a given compression reliably and consistently.
Extension springs
are a closed coiled helical spring that is resistant to a pulling force.
Flat springs
include a wide range of springs manufactured from flat strip material
which, on being deflected by an external load, will store and then release
energy.
Garter springs
are either helical extension or compression springs that are typically
used in oil seals. The ends of garter springs are connected so that
each spring becomes a circle and exerts radial forces.
Gas springs
provide controlled motion and speed for elements, such as lids and doors,
that open and close. There is normally a gas, such as nitrogen, in the
chamber to provide absorption.
Helical springs,
also called “spiral springs,” are the most common type of
spring and can be used in torsion, tension, extension or compression.
Leaf springs,
also called “semi-elliptical” or “cart springs,”
have a slender arc-shaped form. Leaf springs are a simple form of spring
used mostly in heavy vehicles, such as vans, trucks and railway carriages.
Parabolic leaf springs
have fewer leaves whose thicknesses vary from the center to the ends
of the spring, following a parabolic curve. Contact between the coils
is made only at the ends and at the center.
Power springs,
also called “clock” or “motor springs,” store
and release rotational energy in the form of torque.
Spiral springs,
also referred to as “spiral torsion” or “brush springs,”
operate without any contact between the coils.
Torsion springs
exert pressure along a path which is a circular arc, providing torque.
The wire itself is twisted when the spring is compressed or stretched.
Springs Terms
Active Coils –
Coils that are free to deflect under load.
Arbor – Also called a “mandrel,”
it is the round, hardened shaft about which springs are wound.
Closed Ends – Ends of compression
springs in which the pitch of the coil ends is reduced to the degree that
the end coils touch.
Close-Wound – Referring to the
coiling of a spring so that its adjacent coils are touching.
Coil – A round shape formed
by a series of concentric circles.
Deflection (F) – Motion of spring
ends or arms under the application or removal of an external load (P).
Free Angle – Angle between the
arms of a torsion spring when the spring is not loaded.
Free Length (L) – The overall
length of a spring in the unloaded position.
Frequency – The lowest inherent
rate of free vibration of a spring itself, typically expressed in cycles
per second, with ends restrained.
Helix – The spiral form (open
or closed) of compression, extension and torsion springs.
Hooke's Law – Load is proportional
to displacement. Most springs obey this law.
Hooks – Open loops or ends of
extension springs.
Hysteresis – The loss of mechanical
energy during the cyclic loading and unloading of a spring.
Lathe – A machine that rotates
stock against which other tooling is brought to bear. Lathes are used
to wind springs.
Load (P) – The force applied
to a spring that causes a deflection (F).
Loops – Coil-like wire shapes
at the ends of extension springs that provide for attachment and force
application.
Pitch (p) – Also referred to
as "coils per inch," it is the distance from center to center
of the wire in adjacent active coils.
Rate (R) – Change in load per
unit deflection, generally given in pounds per inch (N/mm).
Shot Peening – A cold-working
process in which a metal surface is impacted with a high-velocity stream
of metal shot or glass beads. Shot peening is used for cleaning or improving
resistance to stress corrosion by producing a compressive stress.
Spring Index – Ratio of mean
coil diameter (D) to wire diameter (d).
Stress Relieve – To heat treat
springs under low temperatures in order to relieve residual stresses.
Torque (M) – A twisting action
in torsion springs which tends to produce rotation, equal to the load
multiplied by the distance (or moment arm) from the load to the axis of
the spring body.
Torsion – A twisting force that
can result in shear stresses and strains.
