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Century Spring

3286CS - 2.25" Spring Steel Compression Spring

Inventory Status
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Compression spring manufactured from spring steel with 18 coils and closed & ground ends. This spring features an O.D. of 0.328", and an I.D. of 0.248".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3286
Ends Closed & Ground
Finish Zinc
Free Length 2.25 in
Inside Diameter 0.248 in
Material Spring Steel
Outside Diameter 0.328 in
Part Type Standard
Rate 9.6 lbs/in
SKU 3286CS
Solid Length 0.72 in
Suggested Max Deflection 0.77 in
Suggested Max Load 7.4 lbf
Total Coils 18
Wire Diameter 0.04 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3286
Ends Closed & Ground
Finish Zinc
Free Length 57.15 mm
Inside Diameter 6.3 mm
Material Spring Steel
Outside Diameter 8.33 mm
Part Type Standard
Rate 1.68 N/mm
SKU 3286CS
Solid Length 18.29 mm
Suggested Max Deflection 19.56 mm
Suggested Max Load 32.92 N
Total Coils 18
Wire Diameter 1.02 mm
The 3286CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.04" diameter spring steel, the 3286 spring design exhibits reliable strength across its 18 active coils, withstanding repeated compression cycles with a maximum load of 7.4 lbf without succumbing to fatigue.

We manufacture the 3286 design to provide a compression spring that is 2.25" long at rest and provides a consistent rate of 9.6 lbs/in along its recommended maximum of 0.77" deflection. For best results, your application should fully accommodate the inner (0.248") and outer (0.328") diameters of this spring and be designed for its closed & ground end configuration.

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