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Century Spring

72778CS - 3.5" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 9.75 coils and closed & ground ends. This spring features an O.D. of 1.4", and an I.D. of 1.046".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72778
Ends Closed & Ground
Finish None
Free Length 3.5 in
Inside Diameter 1.046 in
Material Music Wire
Outside Diameter 1.4 in
Part Type Standard
Rate 100 lbs/in
SKU 72778CS
Solid Length 1.73 in
Suggested Max Deflection 1.6 in
Suggested Max Load 164 lbf
Total Coils 9.75
Wire Diameter 0.177 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72778
Ends Closed & Ground
Finish None
Free Length 88.9 mm
Inside Diameter 26.57 mm
Material Music Wire
Outside Diameter 35.56 mm
Part Type Standard
Rate 17.51 N/mm
SKU 72778CS
Solid Length 43.94 mm
Suggested Max Deflection 40.64 mm
Suggested Max Load 729.47 N
Total Coils 9.75
Wire Diameter 4.5 mm
The compression spring 72778CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality music wire, the 72778 compression spring design exhibits exceptional tensile strength and resilience.

The 72778 design is manufactured with a free length of 3.5", with an outer diameter of 1.4", an inner diameter of 1.046", and a total of 9.75 coils, expertly designed to deliver consistent compression characteristics including a rate of 100 lbs/in.

The 72778CS 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 72778 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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