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Century Spring

12706CS - 3" Music Wire Compression Spring

Inventory Status
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Compression spring manufactured from music wire with 20 coils and closed & ground ends. This spring features an O.D. of 0.484", and an I.D. of 0.35".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 12706
Ends Closed & Ground
Finish None
Free Length 3 in
Inside Diameter 0.35 in
Material Music Wire
Outside Diameter 0.484 in
Part Type Standard
Rate 22 lbs/in
SKU 12706CS
Solid Length 1.34 in
Suggested Max Deflection 1.4 in
Suggested Max Load 30 lbf
Total Coils 20
Wire Diameter 0.067 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 12706
Ends Closed & Ground
Finish None
Free Length 76.2 mm
Inside Diameter 8.89 mm
Material Music Wire
Outside Diameter 12.29 mm
Part Type Standard
Rate 3.85 N/mm
SKU 12706CS
Solid Length 34.04 mm
Suggested Max Deflection 35.56 mm
Suggested Max Load 133.44 N
Total Coils 20
Wire Diameter 1.7 mm
The 12706CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.067" diameter music wire, the 12706 spring design exhibits reliable strength across its 20 active coils, withstanding repeated compression cycles with a maximum load of 30 lbf without succumbing to fatigue.

We manufacture the 12706 design to provide a compression spring that is 3" long at rest and provides a consistent rate of 22 lbs/in along its recommended maximum of 1.4" deflection. For best results, your application should fully accommodate the inner (0.35") and outer (0.484") diameters of this spring and be designed for its closed & ground end configuration.

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