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Century Spring

72146CS - 0.75" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 3.5 coils and closed & ground ends. This spring features an O.D. of 0.85", and an I.D. of 0.74".

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72146
Ends Closed & Ground
Finish None
Free Length 0.75 in
Inside Diameter 0.74 in
Material Music Wire
Outside Diameter 0.85 in
Part Type Standard
Rate 18 lbs/in
SKU 72146CS
Solid Length 0.19 in
Suggested Max Deflection 0.55 in
Suggested Max Load 9.9 lbf
Total Coils 3.5
Wire Diameter 0.055 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72146
Ends Closed & Ground
Finish None
Free Length 19.05 mm
Inside Diameter 18.8 mm
Material Music Wire
Outside Diameter 21.59 mm
Part Type Standard
Rate 3.15 N/mm
SKU 72146CS
Solid Length 4.83 mm
Suggested Max Deflection 13.97 mm
Suggested Max Load 44.04 N
Total Coils 3.5
Wire Diameter 1.4 mm
The 72146 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 72146CS compression spring is designed with a free length of 4" total of 10.1 coils, and a rate of 1.8 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 72146 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.

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