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Century Spring

PP-40CS - 1.28" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 5.5 coils and closed & ground ends. This spring features an O.D. of 1.156", and an I.D. of 0.896".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name PP-40
Ends Closed & Ground
Finish Zinc
Free Length 1.28 in
Inside Diameter 0.896 in
Material Spring Steel
Outside Diameter 1.156 in
Part Type Standard
Rate 109 lbs/in
SKU PP-40CS
Solid Length 0.72 in
Suggested Max Deflection 0.53 in
Suggested Max Load 58 lbf
Total Coils 5.5
Wire Diameter 0.13 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name PP-40
Ends Closed & Ground
Finish Zinc
Free Length 32.51 mm
Inside Diameter 22.76 mm
Material Spring Steel
Outside Diameter 29.36 mm
Part Type Standard
Rate 19.09 N/mm
SKU PP-40CS
Solid Length 18.29 mm
Suggested Max Deflection 13.46 mm
Suggested Max Load 257.98 N
Total Coils 5.5
Wire Diameter 3.3 mm
The PP-40 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 PP-40CS compression spring is designed with a free length of 0.72" total of 6.25 coils, and a rate of 16 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 PP-40 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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