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Century Spring

75618CS - 1.378" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 8.01 coils and closed & ground ends. This spring features an O.D. of 0.532", and an I.D. of 0.446".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 75618
Ends Closed & Ground
Finish Zinc
Free Length 1.378 in
Inside Diameter 0.446 in
Material Music Wire
Outside Diameter 0.532 in
Part Type Metric
Rate 7.3 lbs/in
SKU 75618CS
Solid Length 0.355 in
Suggested Max Deflection 1.023 in
Suggested Max Load 7.468 lbf
Total Coils 8.01
Wire Diameter 0.043 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 75618
Ends Closed & Ground
Finish Zinc
Free Length 35 mm
Inside Diameter 11.33 mm
Material Music Wire
Outside Diameter 13.51 mm
Part Type Metric
Rate 1.28 N/mm
SKU 75618CS
Solid Length 9.02 mm
Suggested Max Deflection 25.98 mm
Suggested Max Load 33.22 N
Total Coils 8.01
Wire Diameter 1.09 mm
The 75618CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.043" diameter music wire, the 75618 spring design exhibits reliable strength across its 8.01 active coils, withstanding repeated compression cycles with a maximum load of 7.468 lbf without succumbing to fatigue.

We manufacture the 75618 design to provide a compression spring that is 1.378" long at rest and provides a consistent rate of 7.3 lbs/in along its recommended maximum of 1.023" deflection. For best results, your application should fully accommodate the inner (0.446") and outer (0.532") diameters of this spring and be designed for its closed & ground end configuration.

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