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Extension Springs - Close Wound

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Extension Springs are coil springs designed to be stretched from free length to a longer extended length to store energy, to provide a resistance to a pulling force or to provide a restoring force.  They are usually close wound, meaning that each coil is held tightly against the adjacent coil(s).  The force holding the coils together is called the initial tension.  This force must be overcome before the coils will start to open up as a stretching force is applied to the spring. 






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  Results 1 - 25 of 59 1 2 3 

Item #

Outside Diameter - in.

Wire Diameter - in.

Length Inside Ends - in.

Rate - lbs./in.

Initial Tension - lbs.

Sugg. Max. Ext. Length - in.

Sugg. Max. Load - lbs.

End Type

Material

Finish

List Price

EBB-012-321-S .120 .012 .321 2.7 .11 .53 .68 Crossover Loops Stainless Steel Passivated $3.75
EBB-012-437-S .110 .012 .437 1.34 .12 .9 .72 Crossover Loops Stainless Steel Passivated $3.75
EBB-012-500-S .117 .012 .500 2.1 .11 .775 .68 Crossover Loop, Ext. Hook Stainless Steel Passivated $3.75
EBC-012-500-S .1230 .012 .500 .84 .11 1.16 .67 Crossover Loops Stainless Steel Passivated $3.75
EBD-012-672-S .130 .012 .672 .44 .11 1.85 .63 Cossover Loops Stainless Steel Passivated $3.75
EBE-010-513-S .148 .010 .513 .2 .016 1.625 .24 Cossover Loops Stainless Steel Passivated $3.75
EBE-012-400-S .141 .012 .4 .93 .10 .925 .59 Crossover Loops Stainless Steel Passivated $3.75
EBH-015-560-S .174 .015 .56 1.1 .15 1.275 .91 Crossover Loops Stainless Steel Passivated $3.75
EBH-018-0438-M .175 .018 .438 5.86 .12 .71 1.7 Machine Hooks Music Wire Zinc $3.75
EBH-018-0438-S .175 .018 .438 5.35 .15 .61 1.1 Machine Hooks Stainless Steel None $3.75
EBH-018-0500-M .175 .018 .500 3.36 .19 .95 1.7 Machine Hooks Music Wire Zinc $3.75
EBH-018-0500-S .175 .018 .500 3.52 .27 .73 1.1 Machine Hooks Stainless Steel None $3.75
EBH-018-0625-M .175 .018 .625 2.12 .21 1.33 1.7 Machine Hooks Music Wire Zinc $3.75
EBH-018-0625-S .175 .018 .625 2.08 .07 1.12 1.1 Machine Hooks Stainless Steel None $3.75
EBH-018-0750-M .175 .018 .750 1.44 .16 1.82 1.7 Machine Hooks Music Wire Zinc $3.75
EBH-018-0750-S .175 .018 .750 1.47 .23 1.35 1.1 Machine Hooks Stainless Steel None $3.75
EBH-018-0875-M .175 .018 .875 1.16 .16 2.20 1.7 Machine Hooks Music Wire Zinc $3.75
EBH-018-0875-S .175 .018 .875 1.18 .33 1.55 1.1 Machine Hooks Stainless Steel None $3.75
EBH-018-1000-M .175 .018 1.00 .99 .07 2.65 1.7 Crossover Loop Music Wire Zinc $3.75
EBH-018-1125-M .175 .018 1.125 .76 .04 3.33 1.7 Crossover Loop Music Wire Zinc $3.75
EBH-018-1250-M .175 .018 1.250 .65 .04 3.81 1.7 Crossover Loop Music Wire Zinc $3.75
EBH-018-1375-M .175 .018 1.375 .57 .04 4.26 1.7 Crossover Loop Music Wire Zinc $3.75
ECA-018-0500-M .200 .018 .500 3.36 .13 .91 1.5 Machine Hooks Music Wire Zinc $3.75
ECA-018-0625-M .200 .018 .625 1.67 .13 1.45 1.5 Machine Hooks Music Wire Zinc $3.75
ECA-018-0750-M .200 .018 .750 1.11 .09 2.02 1.5 Machine Hooks Music Wire Zinc $3.75
  Results 1 - 25 of 59 1 2 3