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Century Spring

75285CS - 0.551" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 9.29 coils and closed & ground ends. This spring features an O.D. of 0.181", and an I.D. of 0.137".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 75285
Ends Closed & Ground
Finish Zinc
Free Length 0.551 in
Inside Diameter 0.137 in
Material Music Wire
Outside Diameter 0.181 in
Part Type Metric
Rate 11.28 lbs/in
SKU 75285CS
Solid Length 0.199 in
Suggested Max Deflection 0.302 in
Suggested Max Load 3.407 lbf
Total Coils 9.29
Wire Diameter 0.022 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 75285
Ends Closed & Ground
Finish Zinc
Free Length 14 mm
Inside Diameter 3.48 mm
Material Music Wire
Outside Diameter 4.6 mm
Part Type Metric
Rate 1.98 N/mm
SKU 75285CS
Solid Length 5.05 mm
Suggested Max Deflection 7.67 mm
Suggested Max Load 15.15 N
Total Coils 9.29
Wire Diameter 0.56 mm
The 75285CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.022" diameter music wire, the 75285 spring design exhibits reliable strength across its 9.29 active coils, withstanding repeated compression cycles with a maximum load of 3.407 lbf without succumbing to fatigue.

We manufacture the 75285 design to provide a compression spring that is 0.551" long at rest and provides a consistent rate of 11.28 lbs/in along its recommended maximum of 0.302" deflection. For best results, your application should fully accommodate the inner (0.137") and outer (0.181") diameters of this spring and be designed for its closed & ground end configuration.

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