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B7-57 - 4.97 Inch Spring Steel Extension Spring

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Regular extension spring in Spring Steel. This spring features an O.D. of 0.75 Inch and an initial tension of 1 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name B7-57
Ends Full Loop
Finish None
Initial Tension 1 lb
Length 4.97 in
Material Spring Steel
Outside Diameter 0.75 in
Part Type Standard
Rate 1.1 lbs/in
SKU B7-57CS
Sugg Max Deflection 9.1 in
Sugg Max Load 11 lbf
Wind Direction Left
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B7-57
Ends Full Loop
Finish None
Initial Tension 0.45 kg
Length 126.24 mm
Material Spring Steel
Outside Diameter 19.05 mm
Part Type Standard
Rate 0.19 N/mm
SKU B7-57CS
Sugg Max Deflection 231.14 mm
Sugg Max Load 48.93 N
Wind Direction Left
Wire Diameter 1.59 mm

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