used To Maintain A Pressure Over A Short Distance

Product Announcement from Associated Spring-Raymond

used To Maintain A Pressure Over A Short Distance-Image

Stock sizes in stainless steel and music wire

SPEC stainless steel torsion springs are widely useful to store and release energy of rotation or to maintain a pressure over a short distance.

Our stock selection includes torsion springs with four end positions and music wire springs with three end positions as shown in the drawings.

SPEC torsion springs are normally used over a supporting mandrel or arbor. Suggested mandrel sizes allow about 10% clearance at the deflections listed.

If greater deflections are used, the arbor size should be reduced. Sufficient room (minimum axial space) must be provided in the assembly for the spring to function properly.

SPEC torsion springs should be used in the direction that winds the coils.

In the unwinding direction that winds the coils. In the unwinding direction the maximum load is lower because of residual stresses.

Torque values listed are suitable for average conditions.

These values can be increased about 20% for static conditions with only slight setting.


  • Stainless Steel
    Commercial Type 302 ASTM-A313 or AMS 5688 (chemical and physical only)
  • Music Wire
    ASTM-A228 or AMS 5112
    Certificate of compliance available on request.


Straight torsion ends are standard.

Special end treatment available. Allow additional time.


Plain finish is standard. Allow additional time for special finishes.

Torsion Springs FAQ:

1. What is Torque?

Torque is the product of a force times a distance. It is measured in inch-pounds (in the US). Torque should not be confused with Load, which is measured in pounds.

2. What position is Torque measured at?

The Torque "M" listed in the catalog is at the maximum deflection. Since the torque is linear, intermediate torques can be computed by proportion. For example: if a spring is deflected .5 of the maximum value, the torque is .5 of that printed value.

3. Does the Load change?

The load on a torsion spring can vary for the same torque and deflection depending upon the position on the leg where the force is applied. The load decreases as the point of contact moves out from the center axis of the spring. If a specific application extends the length of the spring leg, i.e. lever, the lever must be considered as an extension of the leg of the spring.

4. What is the Helix Direction?

A right-hand-wound spring loads in a counter-clockwise direction. A left-hand-wound spring loads in a clockwise direction. Both are available.

Raymond® Die Springs and Components

For the world's best, one name springs to mind. Raymond®.

Quality. Without compromise.

Because Raymond® die and nitrogen gas springs are built to the world's highest standards, with the most advanced technology, and backed by the world's best engineering, selection assistance, training and support.

In addition to our standard U.S. die springs, we also offer separate lines designed and manufactured to ISO and JIS specification, including our new ISO D Line.

Associated Spring Raymond's Nested Die Springs combine specific springs to maximize spring loading in applications where space is critical, or where additional force is needed. Download our Nested Die Springs flyer here.

Our nitrogen gas springs and accessories remain unmatched in the industry for safe and reliable performance, all in a very compact package. Our accessories include roller cams, flange strippers, part vibrators and pin extractors.

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