Load + 20% –10% Squareness 3° or less Free length L ± 2% Coil direction right
－ 1.0 ＋ 0.5
D
Light
Load guide
Heavy
＋ 0.7 ＋ 0.1
d
COIL SPRINGS −MIDDLE DEFLECTION SWS−
S W Y
S W U
S W R
S W S
S W N
E F (Allowable deflection) is due to the measurement at normal temperature (40°C). Refer to P.1140 for the maximum allowable deflection at high temperature (150°C/200°C).
F = L × 40% Part Number Fmm Load N {kgf} Type D–L
F = L × 40% Part Number Fmm Load N {kgf} Type D–L
F = L × 40% Part Number Fmm Load N {kgf} Type D–L
F = L × 40% Part Number Fmm Load N {kgf} Type D–L
Spring constant N/mm {kgf/mm}
Spring constant N/mm {kgf/mm}
Spring constant N/mm {kgf/mm}
Spring constant N/mm {kgf/mm}
D d L
D d L
D d L
D d L
50 50.15 {5.11} 60 41.79 {4.26} 70 35.82 {3.65} 80 31.34 {3.20} 90 27.86 {2.84} 100 25.08 {2.56} 110 22.80 {2.32} 120 20.90 {2.13} 130 19.29 {1.97} 140 17.91 {1.83} 150 16.72 {1.70} 160 15.67 {1.60} 170 14.75 {1.50} 180 13.93 {1.42} 190 13.20 {1.35} 200 12.54 {1.28} 225 11.14 {1.14}
20.0 24.0 28.0 32.0 36.0 40.0 44.0 48.0 52.0 56.0 60.0 64.0 68.0 72.0 76.0 80.0 90.0
20 10.90 {1.11} 25 8.72 {0.89} 30 7.27 {0.74} 35 6.23 {0.64} 40 5.45 {0.56} 45 4.84 {0.49} 50 4.36 {0.44} 55 3.96 {0.40} 60 3.63 {0.37} 65 3.35 {0.34} 70 3.11 {0.32} 75 2.91 {0.30} 80 2.73 {0.28} 20 15.25 {1.56} 25 12.20 {1.24} 30 10.17 {1.04} 35 8.71 {0.89} 40 7.63 {0.78} 45 6.78 {0.69} 50 6.10 {0.62} 55 5.55 {0.57} 60 5.08 {0.52} 65 4.69 {0.48} 70 4.36 {0.44} 75 4.07 {0.41} 80 3.81 {0.39} 20 24.50 {2.50} 25 19.61 {2.00} 30 16.33 {1.67} 35 14.00 {1.43} 40 12.25 {1.25} 45 10.89 {1.11} 50 9.80 {1.00} 55 8.91 {0.91} 60 8.17 {0.83} 65 7.54 {0.77} 70 7.00 {0.71} 75 6.53 {0.67} 80 6.13 {0.62} 90 5.44 {0.56} 100 4.90 {0.50} 125 3.92 {0.40} 150 3.27 {0.33}
8.0
40 49.00 {5.00} 45 43.56 {4.44} 50 39.20 {4.00} 55 35.64 {3.63} 60 32.67 {3.33} 65 30.15 {3.07} 70 28.00 {2.86} 75 26.13 {2.66} 80 24.50 {2.50} 90 21.78 {2.22} 100 19.60 {2.00} 110 17.82 {1.82} 120 16.33 {1.67} 125 15.68 {1.60} 130 15.08 {1.54} 140 14.00 {1.43} 150 13.07 {1.33} 160 12.25 {1.25} 170 11.53 {1.18} 175 11.20 {1.14} 180 10.89 {1.11} 190 10.32 {1.05} 200 9.80 {1.00}
16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 36.0 40.0 44.0 48.0 50.0 52.0 56.0 60.0 64.0 68.0 70.0 72.0 76.0 80.0
25 29.42 {3.00} 30 24.52 {2.50} 35 21.01 {2.14} 40 18.39 {1.88} 45 16.34 {1.67} 50 14.71 {1.50} 55 13.37 {1.36} 60 12.26 {1.25} 65 11.32 {1.15} 70 10.51 {1.07} 75 9.81 {1.00} 80 9.19 {0.94} 90 8.17 {0.83} 100 7.35 {0.75} 125 5.88 {0.60} 150 4.90 {0.50} 30 35.17 {3.59} 35 30.14 {3.07} 40 26.38 {2.69} 45 23.44 {2.39} 50 21.10 {2.15} 55 19.18 {1.96} 60 17.58 {1.79} 65 16.23 {1.66} 70 15.07 {1.54} 75 14.07 {1.43} 80 13.19 {1.34} 90 11.72 {1.20} 100 10.55 {1.08} 110 9.59 {0.98} 120 8.79 {0.90} 125 8.44 {0.86} 130 8.12 {0.83} 140 7.54 {0.77} 150 7.03 {0.72} 175 6.03 {0.61} 200 5.28 {0.54} 30 47.42 {4.84} 35 40.64 {4.14} 40 35.56 {3.63} 45 31.61 {3.22} 50 28.45 {2.90} 55 25.86 {2.64} 60 23.71 {2.42} 65 21.88 {2.23} 70 20.32 {2.07} 75 18.97 {1.93} 80 17.78 {1.81} 90 15.81 {1.61} 100 14.23 {1.45} 110 12.93 {1.32} 120 11.85 {1.21} 125 11.38 {1.16} 130 10.94 {1.12} 140 10.16 {1.04} 150 9.48 {0.97} 175 8.13 {0.83} 200 7.11 {0.73} 225 6.32 {0.64}
10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 36.0 40.0 50.0 60.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 36.0 40.0 44.0 48.0 50.0 52.0 56.0 60.0 70.0 80.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 36.0 40.0 44.0 48.0 50.0 52.0 56.0 60.0 70.0 80.0 90.0
SWS44.5–50
SWS10.5–20
SWS31–40
SWS17–25
60 70 80 90
25 30 35 40 45 50 55 60 65 70 75 80 25 30 35 40 45 50 55 60 65 70 75 80 25 30 35 40 45 50 55 60 65 70 75 80 90
45 50 55 60 65 70 75 80 90
30 35 40 45 50 55 60 65 70 75 80 90
10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0
100 110 120 130 140 150 160 170 180 190 200 225 250 275 300
87.2 {8.9}
10.5 5.5
294.2 {30.0}
17 10.5
1003 {102}
44.5 31
100 110 120 125 130 140 150 160 170 175 180 190 200 250 300
784.0 {79.9}
31 21
100 125 150
8.0
SWS12.5–20
10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0
SWS21–30
35 40 45 50 55 60 65 70 75 80 90
250 10.03 {1.02} 100.0 275 9.12 {0.93} 110.0 300 8.36 {0.85} 120.0
122.0 {12.4}
12.5 6.5
50 63.74 {6.50} 60 53.12 {5.42} 70 45.53 {4.64} 80 39.84 {4.06} 90 35.41 {3.61} 100 31.87 {3.25} 110 28.97 {2.95} 120 26.56 {2.71} 125 25.50 {2.60} 130 24.52 {2.50} 140 22.77 {2.32} 150 21.25 {2.17} 175 18.21 {1.86} 200 15.94 {1.63} 225 14.17 {1.44}
20.0 24.0 28.0 32.0 36.0 40.0 44.0 48.0 50.0 52.0 56.0 60.0 70.0 80.0 90.0
SWS46–50
60 70 80 90
250 7.84 {0.80} 100.0 300 6.53 {0.67} 120.0
100 110 120 125 130 140 150 175 200 225 250 275 300
40 52.13 {5.32} 45 46.33 {4.72} 50 41.70 {4.25} 55 37.91 {3.87} 60 34.75 {3.54} 65 32.08 {3.27} 70 29.79 {3.04} 75 27.80 {2.83} 80 26.06 {2.66} 90 23.17 {2.36} 100 20.85 {2.13} 110 18.95 {1.93} 120 17.38 {1.77} 125 16.68 {1.70} 130 16.04 {1.64} 140 14.89 {1.52} 150 13.90 {1.42} 160 13.03 {1.33} 170 12.26 {1.25} 175 11.91 {1.21} 180 11.58 {1.18} 190 10.97 {1.12} 200 10.43 {1.06}
16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 36.0 40.0 44.0 48.0 50.0 52.0 56.0 60.0 64.0 68.0 70.0 72.0 76.0 80.0
SWS37–40
422.0 {43.0}
45 50 55 60 65 70 75 80 90
21 13.5
8.0
SWS14.5–20
10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 36.0 40.0 50.0 60.0
100 110 120 125 130 140 150 175 200
1275 {130}
46 33
196.0 {20.0}
14.5 8.5
100 110 120 125 130 140 150 160 170 175 180 190 200 250 300
250 12.75 {1.30} 100.0 275 11.59 {1.18} 110.0 300 10.62 {1.08} 120.0
834.0 {85.0}
37 26
SWS26–30
35 40 45 50 55 60 65 70 75 80 90
60 65.42 {6.67} 70 56.07 {5.72} 80 49.06 {5.00} 90 43.61 {4.45} 100 39.25 {4.00} 110 35.68 {3.64} 120 32.71 {3.34} 130 30.19 {3.08} 140 28.04 {2.86} 150 26.17 {2.67} 175 22.43 {2.29} 200 19.63 {2.00} 225 17.44 {1.78}
24.0 28.0 32.0 36.0 40.0 44.0 48.0 52.0 56.0 60.0 70.0 80.0 90.0
SWS52–60
70 80 90
100 125 150
100 110 120 130 140 150 175 200 225 250 275 300
M Material Oil tempered wire for spring ● Load calculation method: Load = Spring constant × Deflection (International unit) N = N/mm × Fmm kgf = kgf/mm × Fmm (kgf = N × 0.101972) e Times used: 1 million (300 thousand times for L × 45%)
1570 {160}
52 37
569.0 {58.0}
e Product guide d P.1139 e Load graph d P.1141 e Instructions and notes for coil springs d P.1142 e For information on the D dimension and the counterbore hole, and also the d dimension and the shaft d P.1142
26 16.5
250 8.34 {0.85} 100.0 300 6.95 {0.71} 120.0
100 110 120 125 130 140 150 175 200 225 250
250 15.70 {1.60} 100.0 275 14.27 {1.46} 110.0 300 13.08 {1.33} 120.0
(NT) – Part Number NT – SWS31–70
Alterations
Part Number SWS21–100
Order
Quotation
Alterations Code
Spec.
Quotation
Paint peeling process d P.1147 P eel the coating by shot peening the coil springs. e Since the springs which have undergone the painting peeling are easy to rust, be careful in handling. Rusting of spring will lead to premature damaging e Compared to painted springs, there may be some dispersions in terms of load, etc. depending on the lot.
Delivery
NT
250 5.69 {0.58} 100.0
No painting
1165
1166
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