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Century Spring

B7-25CS - 0.34" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 3.75 coils and closed & ground ends. This spring features an O.D. of 0.343", and an I.D. of 0.303".

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 B7-25
Ends Closed & Ground
Finish None
Free Length 0.34 in
Inside Diameter 0.303 in
Material Music Wire
Outside Diameter 0.343 in
Part Type Standard
Rate 3.9 lbs/in
SKU B7-25CS
Solid Length 0.08 in
Suggested Max Deflection 0.27 in
Suggested Max Load 1 lbf
Total Coils 3.75
Wire Diameter 0.02 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B7-25
Ends Closed & Ground
Finish None
Free Length 8.64 mm
Inside Diameter 7.7 mm
Material Music Wire
Outside Diameter 8.71 mm
Part Type Standard
Rate 0.68 N/mm
SKU B7-25CS
Solid Length 2.03 mm
Suggested Max Deflection 6.86 mm
Suggested Max Load 4.45 N
Total Coils 3.75
Wire Diameter 0.51 mm
The compression spring B7-25CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality music wire, the B7-25 compression spring design exhibits exceptional tensile strength and resilience.

The B7-25 design is manufactured with a free length of 0.34", with an outer diameter of 0.343", an inner diameter of 0.303", and a total of 3.75 coils, expertly designed to deliver consistent compression characteristics including a rate of 3.9 lbs/in.

The B7-25CS compression spring is ideally suited for use in a wide range of mechanical assemblies, including but not limited to automotive suspension systems, industrial machinery, and electronic devices.

In summary, the compression spring B7-25 design stands out for its superior material properties, thoughtful design, and versatility in application. It is a prime choice for engineers committed to excellence and innovation in their projects.

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