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Century Spring

4140CS - 11.5" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 25 coils and closed ends. This spring features an O.D. of 1.188", and an I.D. of 1.008".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 4140
Ends Closed
Finish Zinc
Free Length 11.5 in
Inside Diameter 1.008 in
Material Spring Steel
Outside Diameter 1.188 in
Part Type Standard
Rate 3.1 lbs/in
SKU 4140CS
Solid Length 2.34 in
Suggested Max Deflection 6.6 in
Suggested Max Load 20 lbf
Total Coils 25
Wire Diameter 0.09 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 4140
Ends Closed
Finish Zinc
Free Length 292.1 mm
Inside Diameter 25.6 mm
Material Spring Steel
Outside Diameter 30.18 mm
Part Type Standard
Rate 0.54 N/mm
SKU 4140CS
Solid Length 59.44 mm
Suggested Max Deflection 167.64 mm
Suggested Max Load 88.96 N
Total Coils 25
Wire Diameter 2.29 mm
The 4140 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 4140CS compression spring is designed with a free length of 2.63" total of 13.5 coils, and a rate of 154 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 4140 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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