91制片厂

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Century Spring

3521CS - 3.63" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 39 coils and closed ends. This spring features an O.D. of 0.281", and an I.D. of 0.207".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3521
Ends Closed
Finish Zinc
Free Length 3.63 in
Inside Diameter 0.207 in
Material Music Wire
Outside Diameter 0.281 in
Part Type Standard
Rate 5 lbs/in
SKU 3521CS
Solid Length 1.48 in
Suggested Max Deflection 1.9 in
Suggested Max Load 9.4 lbf
Total Coils 39
Wire Diameter 0.037 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3521
Ends Closed
Finish Zinc
Free Length 92.2 mm
Inside Diameter 5.26 mm
Material Music Wire
Outside Diameter 7.14 mm
Part Type Standard
Rate 0.88 N/mm
SKU 3521CS
Solid Length 37.59 mm
Suggested Max Deflection 48.26 mm
Suggested Max Load 41.81 N
Total Coils 39
Wire Diameter 0.94 mm
The 3521CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.037" diameter music wire, the 3521 spring design exhibits reliable strength across its 39 active coils, withstanding repeated compression cycles with a maximum load of 9.4 lbf without succumbing to fatigue.

We manufacture the 3521 design to provide a compression spring that is 3.63" long at rest and provides a consistent rate of 5 lbs/in along its recommended maximum of 1.9" deflection. For best results, your application should fully accommodate the inner (0.207") and outer (0.281") diameters of this spring and be designed for its closed end configuration.

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