Century Spring

B4-70CS - 0.38" 302/304 Stainless Steel Compression Spring

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Compression spring manufactured from 302/304 stainless steel with 3 coils and closed ends. This spring features an O.D. of 0.656", and an I.D. of 0.6".

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

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B4-70
Ends Closed
Finish None
Free Length 0.38 in
Inside Diameter 0.6 in
Material 302/304 Stainless Steel
Outside Diameter 0.656 in
Part Type Standard
Rate 3.1 lbs/in
SKU B4-70CS
Solid Length 0.11 in
Suggested Max Deflection 0.26 in
Suggested Max Load 0.82 lbf
Total Coils 3
Wire Diameter 0.028 in
The B4-70 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality 302/304 stainless 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 B4-70CS compression spring is designed with a free length of 0.34" total of 7.5 coils, and a rate of 21 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The B4-70 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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