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Century Spring

B-75CS - 0.75" Music Wire Compression Spring

Inventory Status
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Compression spring manufactured from music wire with 12 coils and closed ends. This spring features an O.D. of 0.172", and an I.D. of 0.13".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B-75
Ends Closed
Finish Zinc
Free Length 0.75 in
Inside Diameter 0.13 in
Material Music Wire
Outside Diameter 0.172 in
Part Type Standard
Rate 8.1 lbs/in
SKU B-75CS
Solid Length 0.27 in
Suggested Max Deflection 0.39 in
Suggested Max Load 3.2 lbf
Total Coils 12
Wire Diameter 0.021 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B-75
Ends Closed
Finish Zinc
Free Length 19.05 mm
Inside Diameter 3.3 mm
Material Music Wire
Outside Diameter 4.37 mm
Part Type Standard
Rate 1.42 N/mm
SKU B-75CS
Solid Length 6.86 mm
Suggested Max Deflection 9.91 mm
Suggested Max Load 14.23 N
Total Coils 12
Wire Diameter 0.53 mm
The B-75CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.021" diameter music wire, the B-75 spring design exhibits reliable strength across its 12 active coils, withstanding repeated compression cycles with a maximum load of 3.2 lbf without succumbing to fatigue.

We manufacture the B-75 design to provide a compression spring that is 0.75" long at rest and provides a consistent rate of 8.1 lbs/in along its recommended maximum of 0.39" deflection. For best results, your application should fully accommodate the inner (0.13") and outer (0.172") diameters of this spring and be designed for its closed end configuration.

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