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Century Spring

II-57CS - 1" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 8 coils and closed ends. This spring features an O.D. of 0.36", and an I.D. of 0.29".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name II-57
Ends Closed
Finish Zinc
Free Length 1 in
Inside Diameter 0.29 in
Material Spring Steel
Outside Diameter 0.36 in
Part Type Standard
Rate 11 lbs/in
SKU II-57CS
Solid Length 0.28 in
Suggested Max Deflection 0.43 in
Suggested Max Load 4.6 lbf
Total Coils 8
Wire Diameter 0.035 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name II-57
Ends Closed
Finish Zinc
Free Length 25.4 mm
Inside Diameter 7.37 mm
Material Spring Steel
Outside Diameter 9.14 mm
Part Type Standard
Rate 1.93 N/mm
SKU II-57CS
Solid Length 7.11 mm
Suggested Max Deflection 10.92 mm
Suggested Max Load 20.46 N
Total Coils 8
Wire Diameter 0.89 mm
The II-57 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality spring steel and designed with precision and durability in mind, this spring is an essential component for a variety of mechanical systems where reliable force and resilience are paramount.

The II-57CS compression spring is designed with a free length of 1.19" total of 13 coils, and a rate of 19 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed & ground end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The II-57 spring design is ideal for use in industrial machinery, automotive systems, and various mechanical assemblies where reliable force application is crucial. Its robust construction and thoughtful design make it a dependable choice for engineers seeking a high-performance spring solution.

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