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Century Spring

76640CS - 3.15" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 12.8 coils and closed & ground ends. This spring features an O.D. of 1", and an I.D. of 0.724".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 76640
Ends Closed & Ground
Finish None
Free Length 3.15 in
Inside Diameter 0.724 in
Material Music Wire
Outside Diameter 1 in
Part Type Metric
Rate 74.867 lbs/in
SKU 76640CS
Solid Length 1.764 in
Suggested Max Deflection 1.489 in
Suggested Max Load 111.498 lbf
Total Coils 12.8
Wire Diameter 0.138 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 76640
Ends Closed & Ground
Finish None
Free Length 80.01 mm
Inside Diameter 18.39 mm
Material Music Wire
Outside Diameter 25.4 mm
Part Type Metric
Rate 13.11 N/mm
SKU 76640CS
Solid Length 44.81 mm
Suggested Max Deflection 37.82 mm
Suggested Max Load 495.94 N
Total Coils 12.8
Wire Diameter 3.51 mm
The 76640 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality music wire 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 76640CS compression spring is designed with a free length of 2.953" total of 12.3 coils, and a rate of 246.803 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 76640 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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