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Selection
Extension Springs are organized in order of increasing diameter and wire size. Note that in each category the spring rate decreases as the length increases.
Unit of Measure

Specifications

Type

Extension

Material

Music Wire

Outside Diameter

1

Wire Diameter

0.095

Free Length

5.000

Max. Load

31

Max. Extension

11.17

Initial Tension

2.8

Spring Rate

4.60

Max. Load (SS)

27.100

Max. Extension (SS)

11.22

Initial Tension (SS)

2.4

Spring Rate (SS)

4