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B2-57CS - 0.56" Music Wire Compression Spring

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Compression spring manufactured from music wire with 3.25 coils and closed ends. This spring features an O.D. of 0.75", and an I.D. of 0.688".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B2-57
Ends Closed
Finish Zinc
Free Length 0.56 in
Inside Diameter 0.688 in
Material Music Wire
Outside Diameter 0.75 in
Part Type Standard
Rate 2.9 lbs/in
SKU B2-57CS
Solid Length 0.13 in
Suggested Max Deflection 0.43 in
Suggested Max Load 1.2 lbf
Total Coils 3.25
Wire Diameter 0.031 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B2-57
Ends Closed
Finish Zinc
Free Length 14.22 mm
Inside Diameter 17.48 mm
Material Music Wire
Outside Diameter 19.05 mm
Part Type Standard
Rate 0.51 N/mm
SKU B2-57CS
Solid Length 3.3 mm
Suggested Max Deflection 10.92 mm
Suggested Max Load 5.34 N
Total Coils 3.25
Wire Diameter 0.79 mm
The B2-57 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 B2-57CS compression spring is designed with a free length of 0.69" total of 5 coils, and a rate of 102 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 B2-57 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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