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Century Spring

B4-68CS - 0.56" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 5.5 coils and closed ends. This spring features an O.D. of 0.36", and an I.D. of 0.274".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B4-68
Ends Closed
Finish Zinc
Free Length 0.56 in
Inside Diameter 0.274 in
Material Music Wire
Outside Diameter 0.36 in
Part Type Standard
Rate 44 lbs/in
SKU B4-68CS
Solid Length 0.28 in
Suggested Max Deflection 0.26 in
Suggested Max Load 12 lbf
Total Coils 5.5
Wire Diameter 0.043 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B4-68
Ends Closed
Finish Zinc
Free Length 14.22 mm
Inside Diameter 6.96 mm
Material Music Wire
Outside Diameter 9.14 mm
Part Type Standard
Rate 7.7 N/mm
SKU B4-68CS
Solid Length 7.11 mm
Suggested Max Deflection 6.6 mm
Suggested Max Load 53.38 N
Total Coils 5.5
Wire Diameter 1.09 mm
The B4-68 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 B4-68CS compression spring is designed with a free length of 0.3" total of 6.25 coils, and a rate of 2.8 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 B4-68 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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