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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

Stainless Steel

Outside Diameter

0.5

Wire Diameter

0.063

Free Length

4.500

Max. Load

19

Max. Extension

8.12

Initial Tension

2.2

Spring Rate

4.60

Max. Load (SS)

16.400

Max. Extension (SS)

8.11

Initial Tension (SS)

1.9

Spring Rate (SS)

4