Standard Range Extension Springs

Note

All figures stated are for reference only, for detailed specification contact our sales department.
Load +/- 10% Extension
(mm)
Material D2
(mm)
D1
(mm)
H
(mm)
J
(mm)
I/D
(mm)
Spring
Ends
Spring
No.
Average Fatigue
Life Cycles
Newtons Kg/F W T * L
0.73 0.07 170 3 0.05 200 4 6 4 7 4 E SR1 5000
1.1 0.1 260 3 0.08 300 7 9 6 11 6 E SR2 5000
1.5 0.15 170 6 0.05 200 4 6 4 7 4 E SR3 5000
2.2 0.22 350 5 0.1 400 9 12 8 14 7 E SR4 5000
2.8 0.28 260 8 0.08 300 7 9 6 11 6 E SR5 5000
4.4 0.45 350 10 0.1 400 9 12 8 14 7 D SR6 5000
5.5 0.56 440 10 0.13 500 11 14 10 18 9 D SR7 5000
7.3 0.75 440 13 0.13 500 11 14 10 18 9 D SR8 5000
8.8 0.9 530 13 0.15 600 13 17 12 22 11 A SR9 5000
11 1.1 530 16 0.15 600 13 17 12 22 11 A SR10 5000
13.1 1.3 700 14 0.2 800 18 23 17 29 15 A SR11 5000
18.2 1.9 880 16 0.26 1000 22 29 21 36 18 A SR12 5000
22 2.2 880 19 0.26 1000 22 29 21 36 18 A SR13 5000
26.3 2.7 1000 19 0.3 1200 26 35 25 43 22 A SR14 5000
30.7 3.1 1200 19 0.35 1400 31 40 29 51 26 A SR15 5000
35.1 3.6 1000 25 0.3 1200 26 35 25 43 22 C SR16 5000
40.9 4.2 1200 25 0.35 1400 31 40 29 51 26 C SR17 5000
47 4.8 1400 25 0.4 1600 36 46 33 58 29 C SR18 5000
52.9 5.4 1600 25 0.46 1800 40 52 37 66 33 C SR19 5000
61.8 6.3 1200 38 0.35 1400 31 40 29 51 26 F SR20 5000
70 7.1 1000 51 0.3 1200 27 35 25 43 22 F SR21 5000
79 8 1600 38 0.46 1800 40 52 73 66 33 F SR22 5000
93.7 9.5 1400 51 0.4 1600 36 46 33 58 29 F SR23 5000
110 11 2200 38 0.64 2500 55 72 52 90 46 G SR24 5000
129 13 2000 51 0.56 2200 49 64 46 80 41 K SR25 5000
147 15 2200 51 0.64 2500 55 72 52 90 46 K SR26 5000
0.46 0.05 170 3.175 0.051 200 6 7 5 9 5 E SR27 15000
0.7 0.07 250 3.175 0.076 300 9 10 7 13 7 E SR28 15000
0.9 0.1 170 6.35 0.051 200 6 7 5 9 5 E SR29 15000
1.4 0.14 340 4.76 0.102 400 12 14 10 17 10 E SR30 15000
1.8 0.18 250 7.94 0.076 300 9 10 7 13 7 E SR31 15000
2.8 0.29 340 9.52 0.102 400 12 14 10 17 10 D SR32 15000
3.5 0.26 420 9.52 0.127 500 14 17 12 22 12 D SR33 15000
4.7 0.48 420 12.7 0.127 500 14 17 12 22 12 D SR34 15000
5.6 0.57 500 12.7 0.152 600 17 21 15 26 15 A SR35 15000
7 0.72 500 15.88 0.152 600 17 21 15 26 15 A SR36 15000
8.4 0.86 670 14.29 0.203 800 23 28 20 35 19 A SR37 15000
11.7 1.2 840 15.88 0.254 1000 29 35 25 43 24 A SR38 15000
14 1.4 840 19.05 0.254 1000 29 35 25 43 24 A SR39 15000
16.9 1.7 1000 19.05 0.305 1200 35 41 29 52 29 A SR40 15000
19.6 2 1180 19.05 0.356 1400 41 48 34 60 34 A SR41 15000
22.5 2.3 1000 25.4 0.305 1200 35 41 29 52 29 C SR42 15000
26.3 2.7 1180 25.4 0.356 1400 41 48 34 60 34 C SR43 15000
30 3 1340 25.4 0.406 1600 46 55 40 69 39 C SR44 15000
33.8 3.4 1500 25.4 0.457 1800 52 62 44 77 43 C SR45 15000
39.5 4 1180 38.1 0.356 1400 41 48 34 60 34 F SR46 15000
45 4.6 1000 50.8 0.305 1200 35 41 29 52 29 F SR47 15000
50.3 5.1 1500 38.1 0.457 1800 52 62 44 77 43 F SR48 15000
59.8 6.1 1340 50.8 0.406 1600 46 55 40 69 39 F SR49 15000
70.6 7.2 2100 38.1 0.635 2500 73 86 62 108 60 G SR50 15000
82.7 8.4 1850 50.8 0.559 2200 64 76 54 95 53 K SR51 15000
93.8 9.6 2100 50.8 0.635 2500 73 86 62 108 60 K SR52 15000
0.26 0.03 150 3.175 0.051 200 8 9 6 11 7 E SR53 40000
0.38 0.04 230 3.175 0.076 300 12 13 9 17 10 E SR54 40000
0.5 0.05 150 6.35 0.051 200 8 9 6 11 7 E SR55 40000
0.8 0.08 300 4.76 0.102 400 16 18 13 22 13 E SR56 40000
1 0.1 230 7.94 0.076 300 12 13 9 17 10 E SR57 40000
1.6 0.16 300 9.52 0.102 400 16 18 13 22 13 D SR58 40000
2 0.2 390 9.52 0.127 500 20 22 16 27 17 D SR59 40000
2.6 0.26 390 12.7 0.127 500 20 22 16 27 17 D SR60 40000
3.1 0.32 460 12.7 0.152 600 24 26 19 33 20 A SR61 40000
3.9 0.4 460 15.88 0.152 600 24 26 19 33 20 A SR62 40000
4.7 0.48 620 14.29 0.203 800 32 35 25 44 27 A SR63 40000
6.5 0.67 770 15.88 0.254 1000 40 44 32 55 34 A SR64 40000
7.8 0.8 770 19.05 0.254 1000 40 44 32 55 34 A SR65 40000
9.3 0.95 930 19.05 0.305 1200 48 53 38 66 40 A SR66 40000
10.9 1.1 1085 19.05 0.356 1400 56 62 44 77 47 A SR67 40000
12.5 1.3 930 25.4 0.305 1200 48 53 38 66 40 C SR68 40000
14.5 1.5 1085 25.4 0.356 1400 56 62 44 77 47 C SR69 40000
16.6 1.7 1200 25.4 0.406 1600 64 71 50 88 53 C SR70 40000
18.6 1.9 1400 25.4 0.457 1800 72 80 57 100 60 C SR71 40000
21.8 2.2 1085 38.1 0.356 1400 56 62 44 77 47 F SR72 40000
25 2.5 930 50.8 0.305 1200 48 53 38 66 40 F SR73 40000
28 2.9 1400 38.1 0.457 1800 72 80 57 100 60 F SR74 40000
33.2 3.4 1200 50.8 0.406 1600 64 71 50 88 53 F SR75 40000
39 4 1950 38.1 0.635 2500 101 111 79 138 84 G SR76 40000
46 4.7 1400 50.8 0.559 2200 88 97 69 122 73 K SR77 40000
52 5.3 1800 50.8 0.635 2500 101 111 79 138 84 K SR78 40000