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B1-57CS - 2.13 Inch Spring Steel Extension Springs

Inventory Status
Estimated Lead Time

The B1-57CS is a regular extension spring manufactured by Century Spring. This spring is made from spring steel and has a wire diameter of 0.064 inches. It has a free length of 2.13 Inches and can provide an initial tension of 3 Pound. The B1-57CS has an outside diameter of 0.5 Inch and a rate of 14 lbs/inch. It can withstand a maximum load of 18 Pound Force and has a maximum deflection of 1 inches. With its full loop ends, this extension spring is ideal for a variety of applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. Our springs, including the B1-57CS, are proudly made in the United States. With our efficient shipping process and ample supply, we ensure that our customers receive the springs they need promptly. Whether you require regular extension springs or any other type of spring, Century Spring is your trusted source for high-quality, reliable products.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 3 lb
Length 2.13 in
Material Spring Steel
Outside Diameter 0.5 in
Part Type Standard
Rate 14 lbs/in
SKU B1-57CS
Sugg Max Deflection 1 in
Sugg Max Load 18 lbf
Wind Direction Left
Wire Diameter 0.064 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 1.36 kg
Length 54.1 mm
Material Spring Steel
Outside Diameter 12.7 mm
Part Type Standard
Rate 2.45 N/mm
SKU B1-57CS
Sugg Max Deflection 25.4 mm
Sugg Max Load 80.06 N
Wind Direction Left
Wire Diameter 1.63 mm