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extension springs Assembly - Spiroflex
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extension springs Assembly - Spiroflex


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EXTENSION SPR
standard extension spring assemblies
A
98.43
2.032
b
92.08
Materials
Stainless Steel Springs,
other parts pressed
Mild Steel, Zinc Plate and clear passivated.
22.22
7.94 DIA-25.4—
9.53
B
MN CONTRACTION FOR CONSTANT FORCE
AVERAGE FATIGUE
SA242
SR68
35 • 81
20 • 57
25 • 4
10 • 0
1 • 0
915
40,000
SA243
SR69
35 • 81
20 • 57
25 • 4
13 • 8
1 • 4
1118
40,000
SA244
SR70
35 • 81
20 • 57
25 • 4
16 • 0
1 • 6
1321
40,000
SA245
SR71
35 • 81
20 • 57
25 • 4
18 • 4
1 • 9
1524
40,000
SA246
SR72
48 • 51
26 • 92
38 • 1
20 • 7
2 • 1
1118
40,000
SA247
SR44
35 • 81
20 • 57
25 • 4
24 • 0
2 • 5
1321
15,000
SA248
SR74
48 • 51
26 • 92
38 • 1
28 • 0
2 • 9
1524
40,000
SA249
SR45
35 • 81
20 • 57
25 • 4
30 • 3
3 • 1
1524
15,000
SA250
SR75
61 • 21
33 • 27
50 • 8
32 • 3
3 • 3
1321
40,000
SA251
SR48
48 • 51
26 • 92
38 • 1
45 • 4
4 • 6
1524
15,000
SA252
SR50
48 • 51
26 • 92
38 • 1
70 • 3
7 • 2
2235
15,000
SA253
SR50
61 • 21
33 • 27
50 • 8
80 • 1
8 • 2
1930
15,000
SA254
SR52
61 • 21
33 • 27
50 • 8
93 • 5
9 • 5
2235
15,000
SA255
SR24
48 • 51
26 • 92
38 • 1
103 • 3
10 • 5
2235
5,000
SA256
SR26
61 • 21
33 • 27
50 • 8
138 • 0
14 • 1
2235
5,000
*Spring specifications do not necessarily conform to chart values when used in these assemblies.
193.68
9.53
9.53
25.4
MN CONTRACTION FOR CONSTANT FORCE
ASSEMBLY
INCORPORATES
A
B
b
No.
SPRING NO.*
mm
mm
mm
NEWT0NS
SA257
SR68
35
• 81
20
57
25
4
20
0
2 • 0
SA258
SR69
35
• 81
20
57
25
4
27
6
2 • 8
SA259
SR70
35
• 81
20
57
25
4
32
1
3 • 3
SA260
SR71
35
• 81
20
57
25
4
37
0
3 • 8
SA261
SR72
48
• 51
26
92
38
1
41
4
4 • 2
SA262
SF44
35
• 81
20
57
25
4
48
1
4 • 9
SA263
SR74
48
• 51
26
92
38
1
56
1
5 • 7
SA264
SR(5
35
• 81
20
57
25
4
60
5
6 • 2
SA265
SR75
61
• 21
33
27
50
8
64
5
6 • 6
SA266
SR(8
48
• 51
26
92
38
1
90
8
9 • 3
SA267
SR50
48
• 51
26
92
38
1
140
6
14 • 3
SA268
SR51
61
• 21
33
27
50
8
160
1
16 • 3
SA269
SR52
61
• 21
33
27
50
8
186
9
19 • 1
SA270
SR24
48
• 51
26
92
38
1
206
4
21 • 1
SA271
SR26
61
• 21
33
27
50
8
275
9
28 • 1
EEUSE
CYCL
mm
915 1118 1321 1524 1118 1321 1524 1524 1321 1524 2235 1930 2235 2235 2235
40,000 40,000 40,000 40,000 40,000
15,000 40,000 15,000 40,000 15,000 15,000 15,000 15,000 5,000 5,000
*Spring specifications do not necessarily conform to chart values when used in these assemblies.
spiroFleH
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