Extension Spring - Music Wire

Mechanical Extension Springs are coiled products, in a variety of materials and forms. Extension springs are attached to two components from both ends of the spring, and when the components pull apart, the spring tries to pull the components together again. Extension Springs are wound to oppose extension.

Dependant on the application's load requirements, the springs initial tension can be manipulated. They are often tightly wound in the no-load position and have hooks, eyes, or spring anchors at the ends to attach to the components. Each spring is designed within proper stress levels and manufacturing limits.

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Outside Dia (In.) (Inch)

Wire Dia (In.) (Inch)

Free Length (In.) (Inch)

Spring Rate (lbs./In.) (lbs/in)

Item #	IntegrationID	Height	Depth	Width	Outside Dia (In.)	Wire Dia (In.)	Free Length (In.)	Spring Rate (lbs./In.)	Initial Tension (lbs)	Ends

M00940120440	N/A 205639	N/A 0.44 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.012 Inch	N/A 0.44 Inch	N/A 2.4 lbs/in	N/A 0.10 Pound	N/A Full Twist Loop
M00940130440	N/A 205646	N/A 0.44 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.013 Inch	N/A 0.44 Inch	N/A 3.6 lbs/in	N/A 0.10 Pound	N/A Full Twist Loop
M00940140440	N/A 205653	N/A 0.44 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.014 Inch	N/A 0.44 Inch	N/A 5.5 lbs/in	N/A 0.17 Pound	N/A Full Twist Loop
M00940160440	N/A 205660	N/A 0.44 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.016 Inch	N/A 0.44 Inch	N/A 11.0 lbs/in	N/A 0.19 Pound	N/A Full Twist Loop
M00630070500	N/A 205602	N/A 0.500 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.007 Inch	N/A 0.50 Inch	N/A 0.4 lbs/in	N/A 0.03 Pound	N/A Full Twist Loop
M00630080500	N/A 205607	N/A 0.500 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.008 Inch	N/A 0.50 Inch	N/A 0.7 lbs/in	N/A 0.04 Pound	N/A Full Twist Loop
M00630090500	N/A 205614	N/A 0.500 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.009 Inch	N/A 0.50 Inch	N/A 1.4 lbs/in	N/A 0.06 Pound	N/A Full Twist Loop
M00630110500	N/A 205621	N/A 0.500 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.011 Inch	N/A 0.50 Inch	N/A 4.1 lbs/in	N/A 0.10 Pound	N/A Full Twist Loop
M00940100500	N/A 205626	N/A 0.500 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.010 Inch	N/A 0.50 Inch	N/A 0.8 lbs/in	N/A 0.05 Pound	N/A Full Twist Loop
M00940110500	N/A 205633	N/A 0.500 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.011 Inch	N/A 0.50 Inch	N/A 1.2 lbs/in	N/A 0.06 Pound	N/A Full Twist Loop
M00940120500	N/A 205640	N/A 0.500 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.012 Inch	N/A 0.50 Inch	N/A 2.0 lbs/in	N/A 0.10 Pound	N/A Full Twist Loop
M00940130500	N/A 205647	N/A 0.500 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.013 Inch	N/A 0.50 Inch	N/A 3.0 lbs/in	N/A 0.10 Pound	N/A Full Twist Loop
M00940140500	N/A 205654	N/A 0.500 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.014 Inch	N/A 0.50 Inch	N/A 4.6 lbs/in	N/A 0.17 Pound	N/A Full Twist Loop
M00940160500	N/A 205661	N/A 0.500 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.016 Inch	N/A 0.50 Inch	N/A 9.2 lbs/in	N/A 0.19 Pound	N/A Full Twist Loop
M120016050M	N/A 205675	N/A 0.500 Inch	N/A 0.120 Inch	N/A 0.120 Inch	N/A 0.120 Inch	N/A 0.016 Inch	N/A 0.50 Inch	N/A 4.6 lbs/in	N/A 0.20 Pound	N/A Full Twist Loop
M120018050M	N/A 205687	N/A 0.500 Inch	N/A 0.120 Inch	N/A 0.120 Inch	N/A 0.120 Inch	N/A 0.018 Inch	N/A 0.50 Inch	N/A 8.6 lbs/in	N/A 0.20 Pound	N/A Full Twist Loop
M120020050M	N/A 205699	N/A 0.500 Inch	N/A 0.120 Inch	N/A 0.120 Inch	N/A 0.120 Inch	N/A 0.020 Inch	N/A 0.50 Inch	N/A 15.1 lbs/in	N/A 0.30 Pound	N/A Full Twist Loop
M180022050M	N/A 205752	N/A 0.500 Inch	N/A 0.180 Inch	N/A 0.180 Inch	N/A 0.180 Inch	N/A 0.022 Inch	N/A 0.50 Inch	N/A 10.5 lbs/in	N/A 0.20 Pound	N/A Full Twist Loop
M180026050M	N/A 205777	N/A 0.500 Inch	N/A 0.180 Inch	N/A 0.180 Inch	N/A 0.180 Inch	N/A 0.026 Inch	N/A 0.50 Inch	N/A 24.3 lbs/in	N/A 0.40 Pound	N/A Full Twist Loop
M01800310500	N/A 205802	N/A 0.500 Inch	N/A 0.180 Inch	N/A 0.180 Inch	N/A 0.180 Inch	N/A 0.031 Inch	N/A 0.50 Inch	N/A 59.4 lbs/in	N/A 0.60 Pound	N/A Full Twist Loop
M240026050M	N/A 205851	N/A 0.500 Inch	N/A 0.240 Inch	N/A 0.240 Inch	N/A 0.240 Inch	N/A 0.026 Inch	N/A 0.50 Inch	N/A 28.9 lbs/in	N/A 0.30 Pound	N/A Full Twist Loop
M00630080620	N/A 205608	N/A 0.62 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.008 Inch	N/A 0.62 Inch	N/A 0.6 lbs/in	N/A 0.04 Pound	N/A Full Twist Loop
M00630090620	N/A 205615	N/A 0.62 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.009 Inch	N/A 0.62 Inch	N/A 1.1 lbs/in	N/A 0.06 Pound	N/A Full Twist Loop
M00630110620	N/A 205622	N/A 0.62 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.063 Inch	N/A 0.011 Inch	N/A 0.62 Inch	N/A 3.2 lbs/in	N/A 0.10 Pound	N/A Full Twist Loop
M00940100620	N/A 205627	N/A 0.62 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.094 Inch	N/A 0.010 Inch	N/A 0.62 Inch	N/A 0.6 lbs/in	N/A 0.05 Pound	N/A Full Twist Loop

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No Preference
0.007
0.008
0.009
0.010
0.011
0.012
0.013
0.014
0.016
0.018
0.020
0.022
0.024
0.026
0.029
0.031
0.034
0.037
0.039
0.041
0.045
0.049
0.055
0.058
0.063
0.069
0.075
0.085
0.095
0.105
0.115
0.125
0.135
0.148
0.177
0.207

No Preference
0.25
0.31
0.38
0.44
0.50
0.62
0.75
0.87
0.88
1.00
1.12
1.25
1.37
1.50
1.75
10.00
2.00
2.25
2.50
2.75
3.00
3.25
3.50
4.00
4.50
4.75
5.00
5.50
6.00
6.50
7.00
7.50
8.00
9.00

No Preference
0.1
0.138
0.2
0.24
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
10.0
10.1
10.2
10.4
10.5
10.6
10.7
10.8
10.9
100.2
102.7
107.7
11.0
11.1
11.2
11.3
11.4
11.5
11.6
11.8
11.9
115.5
119.8
12.0
12.1
12.2
12.4
12.5
12.7
12.8
12.9
123.9
13.0
13.1
13.2
13.4
13.5
13.6
13.7
13.8
134.1
14.0
14.1
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
143.8
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15.1
15.2
15.3
15.4
15.5
15.6
15.9
151.1
159.3
16.0
16.2
16.4
16.5
16.7
17.0
17.1
17.2
17.3
17.5
17.8
17.9
179.7
18.0
18.1
18.2
18.3
18.7
18.9
19.0
19.2
19.3
19.5
19.6
19.7
19.8
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
20.1
20.3
20.4
20.7
20.8
202.8
21.1
21.3
21.5
21.6
21.8
22.0
22.1
22.4
22.5
22.8
23.2
23.3
23.4
23.5
23.8
23.9
239.6
24.1
24.2
24.3
24.4
24.5
24.7
24.8
24.9
25.0
25.1
25.4
25.5
26.2
26.3
26.5
26.9
27.1
27.2
27.3
27.7
27.8
28.2
28.4
28.5
28.7
28.9
29.0
29.1
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29.3
29.7
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
30.2
30.3
30.6
30.7
31.0
31.2
31.3
32.0
32.1
32.2
32.7
33.3
33.8
33.9
34.0
34.2
34.3
34.6
35.0
35.1
35.3
36.0
36.6
37.4
37.8
38.2
38.5
38.6
38.8
39.0
39.5
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
40.9
41.0
41.1
43.5
43.7
43.9
44.2
44.3
44.7
45.2
45.9
46.2
46.5
46.9
47.9
49.4
49.6
5.0
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
50.4
50.7
52.1
52.3
52.4
52.5
52.7
54.3
54.7
54.8
55.3
56.6
56.7
58.5
58.7
59.4
59.5
59.9
6.0
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
60.4
60.9
61.8
63.2
63.3
64.6
65.2
65.3
65.5
69.7
7.0
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
71.9
72.4
74.0
75.5
76.0
76.5
77.7
79.9
8.0
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
80.2
84.5
84.6
87.3
89.3
9.0
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
92.9
93.3
98.4