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Century Spring

3538 - 1.28 Inch Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from Spring Steel with 9.5 coils and Closed & Ground ends. This spring features an O.D. of 0.406 Inch, and an I.D. of 0.336 Inch.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3538
Ends Closed & Ground
Finish Zinc
Free Length 1.28 in
Inside Diameter 0.336 in
Material Spring Steel
Outside Diameter 0.406 in
Part Type Standard
Rate 5.6 lbs/in
SKU 3538CS
Solid Length 0.33 in
Suggested Max Deflection 0.73 in
Suggested Max Load 4.1 lbf
Total Coils 9.5
Wire Diameter 0.035 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3538
Ends Closed & Ground
Finish Zinc
Free Length 32.51 mm
Inside Diameter 8.53 mm
Material Spring Steel
Outside Diameter 10.31 mm
Part Type Standard
Rate 0.98 N/mm
SKU 3538CS
Solid Length 8.38 mm
Suggested Max Deflection 18.54 mm
Suggested Max Load 18.24 N
Total Coils 9.5
Wire Diameter 0.89 mm
The 3538 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality hard drawn 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 3538CS compression spring is designed with a free length of 1.28" total of 7.5 coils, and a rate of 271 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 3538 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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