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O-77CS - 0.5" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 6 coils and closed ends. This spring features an O.D. of 0.39", and an I.D. of 0.33".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name O-77
Ends Closed
Finish None
Free Length 0.5 in
Inside Diameter 0.33 in
Material Music Wire
Outside Diameter 0.39 in
Part Type Standard
Rate 6.2 lbs/in
SKU O-77CS
Solid Length 0.21 in
Suggested Max Deflection 0.29 in
Suggested Max Load 1.8 lbf
Total Coils 6
Wire Diameter 0.03 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name O-77
Ends Closed
Finish None
Free Length 12.7 mm
Inside Diameter 8.38 mm
Material Music Wire
Outside Diameter 9.91 mm
Part Type Standard
Rate 1.09 N/mm
SKU O-77CS
Solid Length 5.33 mm
Suggested Max Deflection 7.37 mm
Suggested Max Load 8.01 N
Total Coils 6
Wire Diameter 0.76 mm
The O-77 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality music wire and designed with precision and durability in mind, this spring is an essential component for a variety of mechanical systems where reliable force and resilience are paramount.

The O-77CS compression spring is designed with a free length of 0.75" total of 8 coils, and a rate of 37 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed & ground end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The O-77 spring design is ideal for use in industrial machinery, automotive systems, and various mechanical assemblies where reliable force application is crucial. Its robust construction and thoughtful design make it a dependable choice for engineers seeking a high-performance spring solution.