Compression Springs Regular

B9-28CS - 1" Spring Steel Compression Spring

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Compression spring manufactured from spring steel with 7.75 coils and closed & ground ends. This spring features an O.D. of 0.39", and an I.D. of 0.272".

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Standard

Metric

Specs (in standard)
Label	Value
Brand	Century Spring
Display Name	B9-28
Ends	Closed & Ground
Finish	Zinc
Free Length	1 in
Inside Diameter	0.272 in
Material	Spring Steel
Outside Diameter	0.39 in
Part Type	Standard
Rate	84 lbs/in
SKU	B9-28CS
Solid Length	0.46 in
Suggested Max Deflection	0.22 in
Suggested Max Load	18 lbf
Total Coils	7.75
Wire Diameter	0.059 in

Specs (in metric)
Label	Value
Brand	Century Spring
Display Name	B9-28
Ends	Closed & Ground
Finish	Zinc
Free Length	25.4 mm
Inside Diameter	6.91 mm
Material	Spring Steel
Outside Diameter	9.91 mm
Part Type	Standard
Rate	14.71 N/mm
SKU	B9-28CS
Solid Length	11.68 mm
Suggested Max Deflection	5.59 mm
Suggested Max Load	80.06 N
Total Coils	7.75
Wire Diameter	1.5 mm

The B9-28 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality spring steel 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 B9-28CS compression spring is designed with a free length of 0.56" total of 11.8 coils, and a rate of 0.16 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 B9-28 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.