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Century Spring

29CS - 1.38" Hard Drawn Compression Spring

Inventory Status
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Compression spring manufactured from hard drawn with 9.25 coils and closed ends. This spring features an O.D. of 0.562", and an I.D. of 0.418".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 29
Ends Closed
Finish Zinc
Free Length 1.38 in
Inside Diameter 0.418 in
Material Spring Steel
Outside Diameter 0.562 in
Part Type Standard
Rate 45 lbs/in
SKU 29CS
Solid Length 0.74 in
Suggested Max Deflection 0.49 in
Suggested Max Load 22 lbf
Total Coils 9.25
Wire Diameter 0.072 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 29
Ends Closed
Finish Zinc
Free Length 35.05 mm
Inside Diameter 10.62 mm
Material Spring Steel
Outside Diameter 14.27 mm
Part Type Standard
Rate 7.88 N/mm
SKU 29CS
Solid Length 18.8 mm
Suggested Max Deflection 12.45 mm
Suggested Max Load 97.86 N
Total Coils 9.25
Wire Diameter 1.83 mm
The 29CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.072" diameter hard drawn, the 29 spring design exhibits reliable strength across its 9.25 active coils, withstanding repeated compression cycles with a maximum load of 22 lbf without succumbing to fatigue.

We manufacture the 29 design to provide a compression spring that is 1.38" long at rest and provides a consistent rate of 45 lbs/in along its recommended maximum of 0.49" deflection. For best results, your application should fully accommodate the inner (0.418") and outer (0.562") diameters of this spring and be designed for its closed end configuration.

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