Torsion Springs conform to DIN 2089. As springs, they are specified by the dimensions in the table below; this page also covers materials, finishes and typical uses.
What Are Torsion Springs?
Torsion Springs are springs defined by DIN 2089. They are selected by thread size and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.
Dimensions & Specifications (DIN 2089)
| Wire dia d (mm) | Inner diameter Di (mm) | Outer diameter De (mm) | Length Lo (mm) | Coils n | Torque range | Material | Reference standard |
|---|---|---|---|---|---|---|---|
| 0.5 | 4.0 | 5.0 | 10 | 6 | 5~15Nmm | Spring steel | DIN 2089 |
| 0.6 | 5.0 | 6.2 | 12 | 6 | 8~25Nmm | Spring steel | DIN 2089 |
| 0.8 | 6.0 | 7.6 | 15 | 6 | 18~55Nmm | Spring steel | DIN 2089 |
| 1.0 | 8.0 | 10.0 | 18 | 6 | 35~100Nmm | Spring steel | DIN 2089 |
| 1.2 | 9.0 | 11.4 | 20 | 6 | 65~190Nmm | Spring steel | DIN 2089 |
| 1.5 | 12.0 | 15.0 | 25 | 6 | 150~420Nmm | Spring steel | DIN 2089 |
| 2.0 | 15.0 | 19.0 | 30 | 6 | 380~1100Nmm | Spring steel | DIN 2089 |
| 2.5 | 20.0 | 25.0 | 35 | 6 | 900~2500Nmm | Spring steel | DIN 2089 |
| 3.0 | 25.0 | 31.0 | 40 | 6 | 1800~5000Nmm | Spring steel | DIN 2089 |
| 4.0 | 32.0 | 40.0 | 50 | 6 | 5500~15000Nmm | Spring steel | DIN 2089 |
Materials & Finishes
Common materials include carbon steel (typically zinc plated or hot-dip galvanized), alloy steel in property classes 8.8, 10.9 and 12.9, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, property class and surface finish appropriate to your load and environment.
Typical Applications
Energy storage and return in mechanisms, valves, tools and assemblies.
Related Fasteners
Pricing
Torsion Springs are stocked and supplied to order. Pricing starts from approximately US$0.20 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Request a quotation below for your exact specification.
Request a Quotation for Torsion Springs
Tell us the size, material, finish and quantity you need for Torsion Springs (DIN 2089) and our team will respond within one business day.