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Century Spring

RR-25CS - 0.34" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 3.5 coils and closed ends. This spring features an O.D. of 0.25", and an I.D. of 0.17".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name RR-25
Ends Closed
Finish None
Free Length 0.34 in
Inside Diameter 0.17 in
Material Spring Steel
Outside Diameter 0.25 in
Part Type Standard
Rate 265 lbs/in
SKU RR-25CS
Solid Length 0.18 in
Suggested Max Deflection 0.04 in
Suggested Max Load 9.5 lbf
Total Coils 3.5
Wire Diameter 0.04 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name RR-25
Ends Closed
Finish None
Free Length 8.64 mm
Inside Diameter 4.32 mm
Material Spring Steel
Outside Diameter 6.35 mm
Part Type Standard
Rate 46.4 N/mm
SKU RR-25CS
Solid Length 4.57 mm
Suggested Max Deflection 1.02 mm
Suggested Max Load 42.26 N
Total Coils 3.5
Wire Diameter 1.02 mm
The RR-25CS 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 RR-25 spring design exhibits reliable strength across its 3.5 active coils, withstanding repeated compression cycles with a maximum load of 9.5 lbf without succumbing to fatigue.

We manufacture the RR-25 design to provide a compression spring that is 0.34" long at rest and provides a consistent rate of 265 lbs/in along its recommended maximum of 0.04" deflection. For best results, your application should fully accommodate the inner (0.17") and outer (0.25") diameters of this spring and be designed for its closed end configuration.

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