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Century Spring

B7-6CS - 0.81" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 20.3 coils and closed ends. This spring features an O.D. of 0.156", and an I.D. of 0.116".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B7-6
Ends Closed
Finish Zinc
Free Length 0.81 in
Inside Diameter 0.116 in
Material Music Wire
Outside Diameter 0.156 in
Part Type Standard
Rate 5 lbs/in
SKU B7-6CS
Solid Length 0.43 in
Suggested Max Deflection 0.39 in
Suggested Max Load 1.9 lbf
Total Coils 20.3
Wire Diameter 0.02 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B7-6
Ends Closed
Finish Zinc
Free Length 20.57 mm
Inside Diameter 2.95 mm
Material Music Wire
Outside Diameter 3.96 mm
Part Type Standard
Rate 0.88 N/mm
SKU B7-6CS
Solid Length 10.92 mm
Suggested Max Deflection 9.91 mm
Suggested Max Load 8.45 N
Total Coils 20.3
Wire Diameter 0.51 mm
The B7-6CS compression spring is a meticulously engineered component designed for a wide range of industrial applications requiring reliable performance and durability. Crafted from premium 0.02" diameter music wire, the B7-6 spring design exhibits reliable strength across its 20.3 active coils, withstanding repeated compression cycles with a maximum load of 1.9 lbf without succumbing to fatigue.

We manufacture the B7-6 design to provide a compression spring that is 0.81" long at rest and provides a consistent rate of 5 lbs/in along its recommended maximum of 0.39" deflection. For best results, your application should fully accommodate the inner (0.116") and outer (0.156") diameters of this spring and be designed for its closed end configuration.

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