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Century Spring

B3-48CS - 0.3" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 4 coils and closed ends. This spring features an O.D. of 0.296", and an I.D. of 0.214".

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 B3-48
Ends Closed
Finish Gold Iridite
Free Length 0.3 in
Inside Diameter 0.214 in
Material Music Wire
Outside Diameter 0.296 in
Part Type Standard
Rate 122 lbs/in
SKU B3-48CS
Solid Length 0.21 in
Suggested Max Deflection 0.09 in
Suggested Max Load 11 lbf
Total Coils 4
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B3-48
Ends Closed
Finish Gold Iridite
Free Length 7.62 mm
Inside Diameter 5.44 mm
Material Music Wire
Outside Diameter 7.52 mm
Part Type Standard
Rate 21.36 N/mm
SKU B3-48CS
Solid Length 5.33 mm
Suggested Max Deflection 2.29 mm
Suggested Max Load 48.93 N
Total Coils 4
Wire Diameter 1.04 mm
The compression spring B3-48CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality music wire, the B3-48 compression spring design exhibits exceptional tensile strength and resilience.

The B3-48 design is manufactured with a free length of 0.3", with an outer diameter of 0.296", an inner diameter of 0.214", and a total of 4 coils, expertly designed to deliver consistent compression characteristics including a rate of 122 lbs/in.

The B3-48CS 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 B3-48 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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