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Feb 23, 2016

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Ordering Torsion Springs

When ordering torsion springs there are 4 specific items you will need in order to get the correct replacement spring. Those items are the wire size, inside diameter of the spring, length of the spring, and the wind of the spring (right or left wound).

Determining Wire Size: A spring's wire size can be determined by using a caliper, micrometer, or wire gauge. If none of these tools are available, simply measure ten coils of wire to the nearest 1/16th of an inch, and refer to the Spring Wire Chart here. The spring must be tightly compressed, with no gaps. Still unsure how to properly measure a spring? Register for Solution Education and purchase the ‘How to Measure a Spring’ video tutorial.

Determining Inside Diameter (ID): First, measure the inside diameter to the nearest 1/16th of an inch. For springs with cones inserted into the ends of each spring, the cone likely will have a manufacturers name (OHD, Raynor, etc.) which will give you a clue toward the proper identity. The chart available here shows the most common ID's used by various manufactures. If no manufacturers name is evident, usually a part number on the cone will indicate the ID.

  • Part No.: 134 or 175 = 1 3/4" ID
  • PART No.: 258 or 263 = 2 5/8" ID
  • PART No.: 375 or 334 = 3 3/4" ID

Measuring the Length of a Spring: First, measure the spring length in an unwound state. The spring must be tightly compressed, with no gaps. In the case of a distorted or broken spring, simply count the total number of coils and multiply by the wire size.

  • 120 coils x .250 wire = 30"
  • 120 coils x .375 wire = 45"

Right or Left Hand Wound: To ensure the correct wind, please refer to the Winding Chart below. Please remember the side of the door the spring is located on does not indicate the wind of the spring. Most winding cones are color coded for hand identification. Right hand wound springs should have red winding cones while left hand wound springs should have black winding cones. See illustrations here.

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Corporate
1703 Toll Gate Drive
Maumee, OH 43537
Manufacturing - OH
6615 Maumee Western Rd
Maumee, OH 43537
Manufacturing - CA
7918 W Doe Ave, Ste A
Visalia, CA 93291

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© 2017 Service Spring Corporation - All Rights Reserved