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Century Spring

KK-53CS - 1.25" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 9 coils and closed & ground ends. This spring features an O.D. of 0.593", and an I.D. of 0.433".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name KK-53
Ends Closed & Ground
Finish Zinc
Free Length 1.25 in
Inside Diameter 0.433 in
Material Spring Steel
Outside Diameter 0.593 in
Part Type Standard
Rate 62 lbs/in
SKU KK-53CS
Solid Length 0.72 in
Suggested Max Deflection 0.46 in
Suggested Max Load 29 lbf
Total Coils 9
Wire Diameter 0.08 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name KK-53
Ends Closed & Ground
Finish Zinc
Free Length 31.75 mm
Inside Diameter 11 mm
Material Spring Steel
Outside Diameter 15.06 mm
Part Type Standard
Rate 10.86 N/mm
SKU KK-53CS
Solid Length 18.29 mm
Suggested Max Deflection 11.68 mm
Suggested Max Load 128.99 N
Total Coils 9
Wire Diameter 2.03 mm
The KK-53CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.08" diameter spring steel, the KK-53 spring design exhibits reliable strength across its 9 active coils, withstanding repeated compression cycles with a maximum load of 29 lbf without succumbing to fatigue.

We manufacture the KK-53 design to provide a compression spring that is 1.25" long at rest and provides a consistent rate of 62 lbs/in along its recommended maximum of 0.46" deflection. For best results, your application should fully accommodate the inner (0.433") and outer (0.593") diameters of this spring and be designed for its closed & ground end configuration.

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