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Metric SPEC Die Springs
Extra Heavy-Duty Metric (GREEN)
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CATALOG
NUMBER
Hole Size (mm)
Rod Size (mm)
Free Length (mm)
Spring Rate kg/mm
Deflection For Moderate Life 25% of Free Length
Deflection For Average Life 20% of Free Length
Deflection For Long Life 15% of Free Length
Total Travel to Solid
mm
mm
mm
mm
Load (kg)
Length of Deflection (mm)
Load (kg)
Length of Deflection (mm)
Load (kg)
Length of Deflection (mm)
Load (kg)
Length of Deflection (mm)
St50330
10
4.5
25
3.93
24.9
6.4
20
5.1
15
3.8
25.4
7
St50370
10
4.5
32
3.04
24.1
7.9
19.3
6.4
14.5
4.8
24.5
8.9
St50410
10
4.5
38
2.59
24.7
9.5
19.7
7.6
14.8
5.7
25.9
11.2
St50450
10
4.5
44
2.05
22.8
11.1
18.3
8.9
13.7
6.7
24.9
12.2
St50490
10
4.5
51
1.79
22.7
12.7
18.1
10.2
13.6
7.6
24.5
15.2
St50530
10
4.5
64
1.43
22.7
15.9
18.1
12.7
13.6
9.5
24.9
19.6
St50570
10
4.5
76
1.16
22.1
19.1
17.7
15.2
13.3
11.4
24.9
23.4
St50610
10
4.5
305
0.27
20.4
76.2
16.3
61
12.2
45.7
26.3
97.8
St50650
13
7
25
5.71
36.3
6.4
29
5.1
21.8
3.8
46.7
7.5
St50690
13
7
32
4.29
34
7.9
27.2
6.4
20.4
4.8
44
9.1
St50730
13
7
38
3.57
34
9.5
27.2
7.6
20.4
5.7
46.7
11.9
St50770
13
7
44
3.04
33.7
11.1
27
8.9
20.2
6.7
44.9
13.5
St50810
13
7
51
2.5
31.8
12.7
25.4
10.2
19.1
7.6
57.2
17.2
St50850
13
7
64
2.05
32.6
15.9
26.1
12.7
19.6
9.5
46.3
20.3
St50890
13
7
76
1.61
30.6
19.1
24.5
15.2
18.4
11.4
46.3
24.9
St50930
13
7
89
1.43
31.8
22.2
25.4
17.8
19.1
13.3
42.6
30
St50970
13
7
305
0.45
34
76.2
27.2
61
20.4
45.7
47.2
105
St51010
16
8.5
25
11.25
71.4
6.4
57.2
5.1
42.9
3.8
94.3
7.1
St51050
16
8.5
32
8.39
66.6
7.9
53.3
6.4
40
4.8
84.8
8.6
St51090
16
8.5
38
6.79
64.6
9.5
51.7
7.6
38.8
5.7
83.5
10.7
St51130
16
8.5
44
5.71
63.5
11.1
50.8
8.9
38.1
6.7
82.1
12.4
St51170
16
8.5
51
5.18
65.8
12.7
52.6
10.2
39.5
7.6
81.6
14.2
St51210
16
8.5
64
3.93
62.4
15.9
49.9
12.7
37.4
9.5
88.5
19.8
St51250
16
8.5
76
3.21
61.2
19.1
49
15.2
36.7
11.4
90.7
24.9
St51290
16
8.5
89
2.86
63.5
22.2
50.8
17.8
38.1
13.3
87.1
27.9
St51330
16
8.5
102
2.41
61.2
25.4
49
20.3
36.7
15.2
92.5
34.5
St51370
16
8.5
305
0.8
61.2
76.2
49
61
36.7
45.7
89.4
104.1
St51410
19
9.5
25
25
127
5.1
95.3
3.8
152.1
5.5
St51450
19
9.5
32
19.64
124.7
6.4
93.6
4.8
154.4
7.6
St51490
19
9.5
38
15.89
151.4
9.5
121.1
7.6
90.8
5.7
190.5
11.7
Metric SPEC Die Springs
Extra Heavy-Duty Metric (GREEN)
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