7/64" (0.109375) Inch Outer Diameter Stock Extension Springs

Definition of a 7/64” Outer Diameter Extension Spring:

A 7/64” (seven sixty-fourths) Outer Diameter Extension spring has an outer diameter of 0.109375 inches; with lengths inside hooks from 7/32” (0.21875 inches) to 1-15/32" (1.46875 inches). These springs are found in our stock extension spring catalog and are ready made.

 

The Spring Store by Acxess Spring provides customers with stock extension springs. Here is a separate list of standard extension springs with a 7/64” outer diameter.

 

Showing 12 out of 4342 items

Select.TSS Part#Outer Diameter by FractionsOuter Diameter (in.) DecimalsInner Diameter (in.) DecimalsLength Inside Hook by FractionsLength Inside Hook (in.) DecimalsRate (lbs./in.)Initial Tension (lbs.)Sugg. Max. Defl. (in.)Sugg. Max. Load (lbs.)Wire Dia. (in.)Total CoilsMaterial TypeHook TypeFinish
PE009-109-8.278-MW-0.220-MH-N-IN 7/64 = 0.109 0.091 7/32 = 0.220 1.200 0.030 0.310 0.390 0.009 8.278 MW-Music Wire MH N
PE007-109-14.358-MW-0.250-MH-N-IN 7/64 = 0.109 0.095 1/4 = 0.250 0.230 0.010 0.760 0.190 0.007 14.358 MW-Music Wire MH N
PE014-109-10.322-MW-0.280-MH-Z-IN 7/64 = 0.109 0.081 9/32 = 0.280 8.100 0.200 0.160 1.500 0.014 10.322 MW-Music Wire MH Z
PE011-109-21.682-MW-0.380-MH-Z-IN 7/64 = 0.109 0.087 3/8 = 0.380 1.100 0.060 0.590 0.710 0.011 21.682 MW-Music Wire MH Z
PE014-109-19.608-PB-0.410-MH-N-IN 7/64 = 0.109 0.081 13/32 = 0.410 2.400 0.100 0.370 0.990 0.014 19.608 PB-Phosphor Bronze MH N
PE008-109-36.563-MW-0.440-MH-N-IN 7/64 = 0.109 0.093 7/16 = 0.440 0.220 0.020 1.200 0.270 0.008 36.563 MW-Music Wire MH N
PE010-109-28.200-MW-0.470-MH-Z-IN 7/64 = 0.109 0.089 15/32 = 0.470 0.620 0.040 0.790 0.530 0.010 28.200 MW-Music Wire MH** Z
PE007-109-50.072-MW-0.500-MH-N-IN 7/64 = 0.109 0.095 1/2 = 0.500 0.080 0.010 2.300 0.190 0.007 50.072 MW-Music Wire MH N
PE011-109-55.319-MW-0.750-MH-N-IN 7/64 = 0.109 0.087 3/4 = 0.750 0.430 0.060 1.500 0.710 0.011 55.319 MW-Music Wire MH* N
PE012-109-89.000-MW-1.250-MH-N-IN 7/64 = 0.109 0.085 1 1/4 = 1.250 0.370 0.090 2.200 0.920 0.012 89.000 MW-Music Wire MH N
PE016-109-83.657-MW-1.470-MH-Z-IN 7/64 = 0.109 0.077 1 15/32 = 1.470 1.400 0.300 1.200 2.000 0.016 83.657 MW-Music Wire MH Z

Your 7/64” extension spring's dimensions and measurements have a lot to do with your standard extension spring's force. For this reason, it is very important that the extension spring measurements are precise. Changing the wire diameter by even 0.001" can make a great difference on how strong your spring will be and how much it will be able to travel; especially with a spring as small as a 7/64” outer diameter extension spring.

 

 

 

 

 

The 7/64” outer diameter standard extension springs provided here offer customers a wide variation of rate, load, and travel capacities. Every spring has it's own amount of force due to the different physical dimensions each stock extension spring has like wire diameter or total coils. The force chart at the bottom of the page will explain what adjustments will make your spring stronger or weaker.

 

For more force you must either decrease your extension spring's outer diameter, increase the wire diameter, take some coils out, or make the length inside hooks shorter (which will also reduce the amount of coils) so that it'll take the spring more force to extend to the desired extended length. For less force, you must increase the outer diameter, decrease the wire diameter, add coils, or make the length inside hooks of your spring longer (which will also increase the amount of coils) so that it'll take less force for the extension spring to extend to the desired extended length.

 

These stock 7/64” outer diameter stock extension springs are made out of either Stainless Steel Wire or Music Wire. Music wire may sometimes be plated in a zinc finish. Other plating options like black oxide and gold irridite are available on other standard extension spring sizes.

 

 

 

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