RS PRO Steel Extension Spring, 87.2mm x 12mm
- RS Stock No. 121-321
- Brand RS PRO
Music Wire Extension Springs
Manufactured from high tensile strength piano/music wire, with a right-hand (clockwise) helix and looped ends.
Features and Benefits
Attached at both ends
Springs absorb and store energy
Create resistance to pulling force
Initial tension manipulation can achieve individual requirements
Wound to oppose extension
Applications:
Automotive interiors and exteriors
Garage door assemblies
Vise-grip pliers
Carburetors
Trampolines
Washing devices
Farm machinery
Standards
Materials to DIN17223 Class C or BS1408 CR3. Dimensions conform to DIN2097 Grade 2. Oiled finish.
| Attribute | Value |
|---|---|
| Material | Steel |
| Free Length | 87.2mm |
| Maximum Extended Length | 134.80mm |
| Outside Diameter | 12mm |
| Wire Diameter | 1.8mm |
| Initial Tension | 141N |
| Spring Rate | 2.52N/mm |
