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Century Spring

72705CS - 4.5" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 13.4 coils and closed & ground ends. This spring features an O.D. of 1.225", and an I.D. of 0.955".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72705
Ends Closed & Ground
Finish None
Free Length 4.5 in
Inside Diameter 0.955 in
Material Music Wire
Outside Diameter 1.225 in
Part Type Standard
Rate 32 lbs/in
SKU 72705CS
Solid Length 1.81 in
Suggested Max Deflection 2.7 in
Suggested Max Load 86 lbf
Total Coils 13.4
Wire Diameter 0.135 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72705
Ends Closed & Ground
Finish None
Free Length 114.3 mm
Inside Diameter 24.26 mm
Material Music Wire
Outside Diameter 31.12 mm
Part Type Standard
Rate 5.6 N/mm
SKU 72705CS
Solid Length 45.97 mm
Suggested Max Deflection 68.58 mm
Suggested Max Load 382.53 N
Total Coils 13.4
Wire Diameter 3.43 mm
The 72705CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.135" diameter music wire, the 72705 spring design exhibits reliable strength across its 13.4 active coils, withstanding repeated compression cycles with a maximum load of 86 lbf without succumbing to fatigue.

We manufacture the 72705 design to provide a compression spring that is 4.5" long at rest and provides a consistent rate of 32 lbs/in along its recommended maximum of 2.7" deflection. For best results, your application should fully accommodate the inner (0.955") and outer (1.225") diameters of this spring and be designed for its closed & ground end configuration.

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