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Century Spring

2977CS - 0.75" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 10 coils and closed ends. This spring features an O.D. of 0.25", and an I.D. of 0.194".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 2977
Ends Closed
Finish Zinc
Free Length 0.75 in
Inside Diameter 0.194 in
Material Music Wire
Outside Diameter 0.25 in
Part Type Standard
Rate 10 lbs/in
SKU 2977CS
Solid Length 0.31 in
Suggested Max Deflection 0.44 in
Suggested Max Load 4.5 lbf
Total Coils 10
Wire Diameter 0.028 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 2977
Ends Closed
Finish Zinc
Free Length 19.05 mm
Inside Diameter 4.93 mm
Material Music Wire
Outside Diameter 6.35 mm
Part Type Standard
Rate 1.75 N/mm
SKU 2977CS
Solid Length 7.87 mm
Suggested Max Deflection 11.18 mm
Suggested Max Load 20.02 N
Total Coils 10
Wire Diameter 0.71 mm
The 2977CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.028" diameter music wire, the 2977 spring design exhibits reliable strength across its 10 active coils, withstanding repeated compression cycles with a maximum load of 4.5 lbf without succumbing to fatigue.

We manufacture the 2977 design to provide a compression spring that is 0.75" long at rest and provides a consistent rate of 10 lbs/in along its recommended maximum of 0.44" deflection. For best results, your application should fully accommodate the inner (0.194") and outer (0.25") diameters of this spring and be designed for its closed end configuration.

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