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Century Spring

BB-21CS - 0.22" 302/304 Stainless Steel Compression Spring

Inventory Status
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Compression spring manufactured from 302/304 stainless steel with 5 coils and closed ends. This spring features an O.D. of 0.094", and an I.D. of 0.078".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name BB-21
Ends Closed
Finish None
Free Length 0.22 in
Inside Diameter 0.078 in
Material 302/304 Stainless Steel
Outside Diameter 0.094 in
Part Type Standard
Rate 2.7 lbs/in
SKU BB-21CS
Solid Length 0.05 in
Suggested Max Deflection 0.09 in
Suggested Max Load 0.23 lbf
Total Coils 5
Wire Diameter 0.008 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name BB-21
Ends Closed
Finish None
Free Length 5.59 mm
Inside Diameter 1.98 mm
Material 302/304 Stainless Steel
Outside Diameter 2.39 mm
Part Type Standard
Rate 0.47 N/mm
SKU BB-21CS
Solid Length 1.27 mm
Suggested Max Deflection 2.29 mm
Suggested Max Load 1.02 N
Total Coils 5
Wire Diameter 0.2 mm
The BB-21 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 BB-21CS compression spring is designed with a free length of 0.69" total of 16 coils, and a rate of 0.1 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 BB-21 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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