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2828CS - 3.75" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 12 coils and closed & ground ends. This spring features an O.D. of 1.296", and an I.D. of 0.796".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 2828
Ends Closed & Ground
Finish Zinc
Free Length 3.75 in
Inside Diameter 0.796 in
Material Spring Steel
Outside Diameter 1.296 in
Part Type Standard
Rate 497 lbs/in
SKU 2828CS
Solid Length 2.97 in
Suggested Max Deflection 0.63 in
Suggested Max Load 312 lbf
Total Coils 12
Wire Diameter 0.25 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 2828
Ends Closed & Ground
Finish Zinc
Free Length 95.25 mm
Inside Diameter 20.22 mm
Material Spring Steel
Outside Diameter 32.92 mm
Part Type Standard
Rate 87.02 N/mm
SKU 2828CS
Solid Length 75.44 mm
Suggested Max Deflection 16 mm
Suggested Max Load 1387.78 N
Total Coils 12
Wire Diameter 6.35 mm
The 2828CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.25" diameter spring steel, the 2828 spring design exhibits reliable strength across its 12 active coils, withstanding repeated compression cycles with a maximum load of 312 lbf without succumbing to fatigue.

We manufacture the 2828 design to provide a compression spring that is 3.75" long at rest and provides a consistent rate of 497 lbs/in along its recommended maximum of 0.63" deflection. For best results, your application should fully accommodate the inner (0.796") and outer (1.296") diameters of this spring and be designed for its closed & ground end configuration.

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