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Century Spring

72978CS - 3" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 6.5 coils and closed & ground ends. This spring features an O.D. of 1.937", and an I.D. of 1.553".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72978
Ends Closed & Ground
Finish None
Free Length 3 in
Inside Diameter 1.553 in
Material Music Wire
Outside Diameter 1.937 in
Part Type Standard
Rate 82 lbs/in
SKU 72978CS
Solid Length 1.25 in
Suggested Max Deflection 1.8 in
Suggested Max Load 144 lbf
Total Coils 6.5
Wire Diameter 0.192 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72978
Ends Closed & Ground
Finish None
Free Length 76.2 mm
Inside Diameter 39.45 mm
Material Music Wire
Outside Diameter 49.2 mm
Part Type Standard
Rate 14.36 N/mm
SKU 72978CS
Solid Length 31.75 mm
Suggested Max Deflection 45.72 mm
Suggested Max Load 640.51 N
Total Coils 6.5
Wire Diameter 4.88 mm
The compression spring 72978CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality music wire, the 72978 compression spring design exhibits exceptional tensile strength and resilience.

The 72978 design is manufactured with a free length of 3", with an outer diameter of 1.937", an inner diameter of 1.553", and a total of 6.5 coils, expertly designed to deliver consistent compression characteristics including a rate of 82 lbs/in.

The 72978CS 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 72978 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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