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B8-11CS - 0.25" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 3 coils and closed & ground ends. This spring features an O.D. of 0.5", and an I.D. of 0.402".

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 B8-11
Ends Closed & Ground
Finish Gold Iridite
Free Length 0.25 in
Inside Diameter 0.402 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 90 lbs/in
SKU B8-11CS
Solid Length 0.15 in
Suggested Max Deflection 0.1 in
Suggested Max Load 9.1 lbf
Total Coils 3
Wire Diameter 0.049 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B8-11
Ends Closed & Ground
Finish Gold Iridite
Free Length 6.35 mm
Inside Diameter 10.21 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 15.76 N/mm
SKU B8-11CS
Solid Length 3.81 mm
Suggested Max Deflection 2.54 mm
Suggested Max Load 40.48 N
Total Coils 3
Wire Diameter 1.24 mm
The B8-11 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 B8-11CS compression spring is designed with a free length of 1.31" total of 11 coils, and a rate of 3.7 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 B8-11 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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