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STOCK CONSTANT-FORCE SPRINGS
STAINLESS STEEL
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CATALOG
NUMBER
Thickness
(Ref)
Width
(Ref)
Length
(Ref)
Initial
Extension
(Ref)
Working
Ext. Min.
I.D.
(Ref)
Drum
Diameter
(Ref)
Load
± 10%
End Configuration
Fati-
gue
Life
A
B
R
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
lb
N
in
mm
in
mm
in
mm
CF015-0050
0.004
0.1
0.25
6.35
15
381
0.61
15.49
12
305
0.34
8.64
0.4
10.16
0.5
2.22
3/8
9.5
0.131
3.3
1/2
12.7
4000
CF018-0075
0.005
0.13
0.13
7.87
18
457
0.75
19.05
15
381
0.42
10.67
0.5
12.7
0.75
3.34
3/8
9.5
0.131
3.3
1/2
12.7
4000
CF022-0112
0.006
0.15
0.37
9.4
22
559
0.92
23.37
18
457
0.51
12.95
0.62
15.75
1.12
4.98
3/8
9.5
0.131
3.3
1/2
12.7
4000
CF026-0162
0.007
0.18
0.5
12.7
26
660
1.06
26.92
21
533
0.59
14.99
0.75
19.05
1.62
7.21
3/8
9.5
0.131
3.3
1/2
12.7
4000
CF030-0237
0.008
0.2
0.59
14.99
30
762
1.22
30.99
24
610
0.68
17.27
0.87
22.1
2.37
10.54
3/8
9.5
0.187
4.7
7/8
22.2
4000
CF034-0350
0.01
0.25
0.68
17.27
34
864
1.53
38.86
27
686
0.85
21.59
1
25.4
3.5
15.57
3/8
9.5
0.187
4.7
7/8
22.2
4000
CF038-0500
0.012
0.3
0.81
20.57
38
965
1.84
46.74
30
762
1.02
25.91
1.25
31.75
5
22.24
3/8
9.5
0.187
4.7
7/8
22.2
4000
CF043-0700
0.014
0.36
1
25.4
43
1092
2.14
54.36
33
838
1.19
30.23
1.5
38.1
7
31.14
3/8
9.5
0.187
4.7
7/8
22.2
4000
CF021-0025
0.006
0.15
0.37
9.4
21
533
2.03
51.56
12
305
1.13
28.7
1.36
34.54
0.25
1.11
3/8
9.5
0.131
3.3
1/2
12.7
40000
CF025-0037
0.007
0.18
0.5
12.7
25
635
2.36
59.94
15
381
1.31
33.27
1.58
40.13
0.37
1.65
3/8
9.5
0.131
3.3
1/2
12.7
40000
CF030-0050
0.008
0.2
0.59
14.99
30
762
2.72
69.09
18
457
1.51
38.35
1.81
45.97
0.5
2.22
3/8
9.5
0.187
4.7
7/8
22.2
40000
CF036-0075
0.01
0.25
0.68
17.27
36
914
3.38
85.85
21
533
1.88
47.75
2.26
57.4
0.75
3.34
3/8
9.5
0.187
4.7
7/8
22.2
40000
CF042-0112
0.012
0.3
0.81
20.57
42
1067
4.07
103.4
24
610
2.26
57.4
2.71
68.83
1.12
4.98
3/8
9.5
0.187
4.7
7/8
22.2
40000
CF048-0162
0.014
0.36
1
25.4
48
1219
4.74
120.4
27
686
2.63
66.8
3.16
80.26
1.62
7.21
3/8
9.5
0.187
4.7
7/8
22.2
40000
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STOCK CONSTANT-FORCE SPRINGS
STAINLESS STEEL
