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Century Spring

B8-66CS - 5.13" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 21 coils and closed ends. This spring features an O.D. of 0.718", and an I.D. of 0.562".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B8-66
Ends Closed
Finish None
Free Length 5.13 in
Inside Diameter 0.562 in
Material Spring Steel
Outside Diameter 0.718 in
Part Type Standard
Rate 11 lbs/in
SKU B8-66CS
Solid Length 1.72 in
Suggested Max Deflection 2.1 in
Suggested Max Load 22 lbf
Total Coils 21
Wire Diameter 0.078 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B8-66
Ends Closed
Finish None
Free Length 130.3 mm
Inside Diameter 14.27 mm
Material Spring Steel
Outside Diameter 18.24 mm
Part Type Standard
Rate 1.93 N/mm
SKU B8-66CS
Solid Length 43.69 mm
Suggested Max Deflection 53.34 mm
Suggested Max Load 97.86 N
Total Coils 21
Wire Diameter 1.98 mm
The B8-66 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 B8-66CS compression spring is designed with a free length of 3" total of 8.7 coils, and a rate of 119 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 B8-66 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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