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Century Spring

3028CS - 4.44" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 12 coils and closed & ground ends. This spring features an O.D. of 1.109", and an I.D. of 0.889".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3028
Ends Closed & Ground
Finish Zinc
Free Length 4.44 in
Inside Diameter 0.889 in
Material Spring Steel
Outside Diameter 1.109 in
Part Type Standard
Rate 21 lbs/in
SKU 3028CS
Solid Length 1.32 in
Suggested Max Deflection 1.8 in
Suggested Max Load 38 lbf
Total Coils 12
Wire Diameter 0.11 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3028
Ends Closed & Ground
Finish Zinc
Free Length 112.78 mm
Inside Diameter 22.58 mm
Material Spring Steel
Outside Diameter 28.17 mm
Part Type Standard
Rate 3.68 N/mm
SKU 3028CS
Solid Length 33.53 mm
Suggested Max Deflection 45.72 mm
Suggested Max Load 169.02 N
Total Coils 12
Wire Diameter 2.79 mm
The 3028CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.11" diameter spring steel, the 3028 spring design exhibits reliable strength across its 12 active coils, withstanding repeated compression cycles with a maximum load of 38 lbf without succumbing to fatigue.

We manufacture the 3028 design to provide a compression spring that is 4.44" long at rest and provides a consistent rate of 21 lbs/in along its recommended maximum of 1.8" deflection. For best results, your application should fully accommodate the inner (0.889") and outer (1.109") diameters of this spring and be designed for its closed & ground end configuration.

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