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Century Spring

B15-57CS - 1.38" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 14.5 coils and closed & ground ends. This spring features an O.D. of 0.296", and an I.D. of 0.21".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B15-57
Ends Closed & Ground
Finish Zinc
Free Length 1.38 in
Inside Diameter 0.21 in
Material Spring Steel
Outside Diameter 0.296 in
Part Type Standard
Rate 24 lbs/in
SKU B15-57CS
Solid Length 0.62 in
Suggested Max Deflection 0.41 in
Suggested Max Load 10 lbf
Total Coils 14.5
Wire Diameter 0.043 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B15-57
Ends Closed & Ground
Finish Zinc
Free Length 35.05 mm
Inside Diameter 5.33 mm
Material Spring Steel
Outside Diameter 7.52 mm
Part Type Standard
Rate 4.2 N/mm
SKU B15-57CS
Solid Length 15.75 mm
Suggested Max Deflection 10.41 mm
Suggested Max Load 44.48 N
Total Coils 14.5
Wire Diameter 1.09 mm
The B15-57CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.043" diameter spring steel, the B15-57 spring design exhibits reliable strength across its 14.5 active coils, withstanding repeated compression cycles with a maximum load of 10 lbf without succumbing to fatigue.

We manufacture the B15-57 design to provide a compression spring that is 1.38" long at rest and provides a consistent rate of 24 lbs/in along its recommended maximum of 0.41" deflection. For best results, your application should fully accommodate the inner (0.21") and outer (0.296") diameters of this spring and be designed for its closed & ground end configuration.

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