Email: info@snmhardware.com Phone: 0086 18965075392
TORSION SPRINGS
- .007 to .625 Inches In Spring Wire Diameter
- Up to 2.0 Inches Bar Stock
- Custom Torsion Spring End Options to Meet Your Needs
- Round, Rectangular, Square & Special-Section Wire
Torsion Spring Manufacturing Specifications
While we have listed some of the most common sizes, materials and manufacturing specifications, Newcomb Spring provides completely customized production on all torsion springs.
- Large Volume Orders, Short Runs & Prototypes – formed, assembled and packaged to meet your requirements
- Proprietary Camera Gauge for Superior Quality – photographs and verifies each part, automatically adjusting production without shutdown.
- Kando Tech Centers – in all 8 manufacturing facilities you can work with our team and equipment to optimize designs and lower costs.
- Engineering Support – our team can provide expert design assistance on any order, or view our online spring design resources.
Shapes & Sizes
- .007 to .625 Inches in Wire Diamete
- Up to 2.0 Inches Bar Stock
- Round Wire
- Square Wire
- Rectangular Wire
- Special Section Wire
End Types
- Bent
- Hooked
- Twisted
- Looped to Suit Your Project Needs and Order Specification
Common Materials
- Spring Steel
- High/Low Carbon Steel
- Nickel Plated Carbon Steel
- Stainless Alloys
- Non-Ferrous Metals
- Elgiloy®
- Hastelloy®
- Monel®
- Inconel®
- Titanium and more
Design of Torsion Springs
With new manufacturing techniques, torsion end positions can be held to surprisingly close tolerances. Older design free angle tolerances often do not apply. Newcomb is a torsion springs manufacturer with modern forming machinery and production techniques that allow for an infinite variety of torsion spring end shapes. When specifications call for very long spring legs, we recommend discussing your requirements with a Newcomb sales engineer. Our staff can verify manufacturing capabilities and will work to keep your production costs as low as possible.
Torsion Springs Parameters
Hook Ends Types
Basic Design Formulas for Torsion Springs
Key Parameters
Note: The constants 10.8 and 6.6 generate results close to actual versus other theoretical values.
| Round Wire | Rectangular Wire (Wound on Flat) | Rectangular Wire (Wound on Edge) | Square Wire |
|---|---|---|---|
M= Ed4T 10.8NtD | M= Ebt3T 6.6NtD | M= Etb3T 6.6NtD | M= Ed4T 6.6NtD |
S= 32M πd3 | S= 6M bt2 | S= 6M tb2 | S= 6M t3 |
*(Typically the maximum design stress is 75% of the minimum tensile strength of the material.)
| D | Mean Coil Diameter (in. or mm) |
| d | Diameter of Round Wire (in. or mm.) |
| Nt | Number of Coils |
| E | Modulus of Elasticity (psi or MPa) |
| T | Deflection, number of turns or revolutions of spring |
| M | Moment or Torque (lbin or Nmm) |
| b | Width (in. or mm) |
| t | Thickness (in. or mm) |
| S | Bending Stress*, (psi or MPa) |
Here are just a small selection of the torsion spring and double torsion spring shapes we have produced, including:
- Brush Springs
- Clipboard Springs
- Closer Springs
- Double Torsion Springs
- Extended Leg Torsion Spring
- Hanger Springs
- Hinge End Torsion Springs
- Latch Springs
- Tine Springs
- Torsion Springs with Hook Ends
- Torsion Springs with Cross Body Bends
