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Century Spring

75105CS - 0.138" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 7.89 coils and closed ends. This spring features an O.D. of 0.055", and an I.D. of 0.031".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 75105
Ends Closed
Finish None
Free Length 0.138 in
Inside Diameter 0.031 in
Material Music Wire
Outside Diameter 0.055 in
Part Type Metric
Rate 66.464 lbs/in
SKU 75105CS
Solid Length 0.107 in
Suggested Max Deflection 0.026 in
Suggested Max Load 1.728 lbf
Total Coils 7.89
Wire Diameter 0.012 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 75105
Ends Closed
Finish None
Free Length 3.51 mm
Inside Diameter 0.79 mm
Material Music Wire
Outside Diameter 1.4 mm
Part Type Metric
Rate 11.64 N/mm
SKU 75105CS
Solid Length 2.72 mm
Suggested Max Deflection 0.66 mm
Suggested Max Load 7.69 N
Total Coils 7.89
Wire Diameter 0.3 mm
The 75105CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.012" diameter music wire, the 75105 spring design exhibits reliable strength across its 7.89 active coils, withstanding repeated compression cycles with a maximum load of 1.728 lbf without succumbing to fatigue.

We manufacture the 75105 design to provide a compression spring that is 0.138" long at rest and provides a consistent rate of 66.464 lbs/in along its recommended maximum of 0.026" deflection. For best results, your application should fully accommodate the inner (0.031") and outer (0.055") diameters of this spring and be designed for its closed end configuration.

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