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Century Spring

72901CS - 2.5" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 6.25 coils and closed & ground ends. This spring features an O.D. of 1.687", and an I.D. of 1.333".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72901
Ends Closed & Ground
Finish None
Free Length 2.5 in
Inside Diameter 1.333 in
Material Music Wire
Outside Diameter 1.687 in
Part Type Standard
Rate 97 lbs/in
SKU 72901CS
Solid Length 1.11 in
Suggested Max Deflection 1.4 in
Suggested Max Load 136 lbf
Total Coils 6.25
Wire Diameter 0.177 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72901
Ends Closed & Ground
Finish None
Free Length 63.5 mm
Inside Diameter 33.86 mm
Material Music Wire
Outside Diameter 42.85 mm
Part Type Standard
Rate 16.98 N/mm
SKU 72901CS
Solid Length 28.19 mm
Suggested Max Deflection 35.56 mm
Suggested Max Load 604.93 N
Total Coils 6.25
Wire Diameter 4.5 mm
The 72901CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.177" diameter music wire, the 72901 spring design exhibits reliable strength across its 6.25 active coils, withstanding repeated compression cycles with a maximum load of 136 lbf without succumbing to fatigue.

We manufacture the 72901 design to provide a compression spring that is 2.5" long at rest and provides a consistent rate of 97 lbs/in along its recommended maximum of 1.4" deflection. For best results, your application should fully accommodate the inner (1.333") and outer (1.687") diameters of this spring and be designed for its closed & ground end configuration.

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