Load ± 10% Squareness 3° or less Free length L 50 or less ± 0.5mm 55 or more ± 1.5% Coil direction Right
－ 1.0 ＋ 0.5
D
Light
Load guide
Heavy
＋ 0.7 ＋ 0.1
d
COIL SPRINGS −LOW DEFLECTION SWN−
S W Y
S W U
S W R
S W S
S W N
巻方向 右：断面図
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 × 30% Part Number
F = L × 30% Part Number
F = L × 30% Part Number
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
Load N {kgf}
Load N {kgf}
Load N {kgf}
Fmm
Fmm
Fmm
Type D–L
Type D–L
Type D–L
20 45.76 {4.67} 25 36.61 {3.73} 30 30.51 {3.11} 35 26.15 {2.67} 40 22.88 {2.33} 45 20.34 {2.07} 50 18.31 {1.87} 55 16.64 {1.70} 60 15.25 {1.56} 65 14.08 {1.44} 70 13.08 {1.33} 75 12.20 {1.24} 80 11.44 {1.17} 90 10.17 {1.04} 100 9.15 {0.93} 125 7.32 {0.75} 150 6.10 {0.62} 25 49.69 {5.07} 30 41.41 {4.22} 35 35.49 {3.62} 40 31.05 {3.17} 45 27.60 {2.81} 50 24.84 {2.53} 55 22.59 {2.30} 60 20.70 {2.11} 65 19.11 {1.95} 70 17.75 {1.81} 75 16.56 {1.69} 80 15.53 {1.58} 90 13.80 {1.41} 100 12.42 {1.27} 125 9.94 {1.01} 150 8.28 {0.84} 30 54.48 {5.56} 35 46.70 {4.76} 40 40.86 {4.17} 45 36.32 {3.70} 50 32.69 {3.33} 55 29.72 {3.03} 60 27.24 {2.78} 65 25.15 {2.56} 70 23.35 {2.38} 75 21.79 {2.22} 80 20.43 {2.08} 90 18.16 {1.85} 100 16.34 {1.67} 110 14.86 {1.52} 120 13.62 {1.39} 125 13.08 {1.33} 130 12.57 {1.28} 140 11.67 {1.19} 150 10.90 {1.11} 175 9.34 {0.95} 200 8.17 {0.83}
6.0 7.5 9.0
40 73.55 {7.50} 45 65.38 {6.67} 50 58.84 {6.00} 55 53.49 {5.45} 60 49.03 {5.00} 65 45.26 {4.62} 70 42.03 {4.29} 75 39.23 {4.00} 80 36.77 {3.75} 90 32.69 {3.33} 100 29.42 {3.00} 110 26.75 {2.73} 120 24.52 {2.50} 125 23.54 {2.40} 130 22.63 {2.31} 140 21.01 {2.14} 150 19.61 {2.00} 160 18.39 {1.88} 170 17.31 {1.76} 175 16.81 {1.71} 180 16.34 {1.67} 190 15.48 {1.58} 200 14.71 {1.50} 250 11.77 {1.20} 300 9.81 {1.00}
12.0 13.5 15.0 16.5 18.0 19.5 21.0 22.5 24.0 27.0 30.0 33.0 36.0 37.5 39.0 42.0 45.0 48.0 51.0 52.5 54.0 57.0 60.0 75.0 90.0
30 76.27 {7.78} 35 65.38 {6.67} 40 57.21 {5.83} 45 50.85 {5.19} 50 45.76 {4.67} 55 41.60 {4.24} 60 38.14 {3.89} 65 35.20 {3.59} 70 32.69 {3.33} 75 30.51 {3.11} 80 28.60 {2.92} 90 25.42 {2.59} 100 22.88 {2.33} 110 20.80 {2.12} 120 19.07 {1.94} 125 18.31 {1.87} 130 17.60 {1.79} 140 16.34 {1.67} 150 15.25 {1.56} 175 13.08 {1.33} 200 11.44 {1.17} 225 10.17 {1.04} 250 9.15 {0.93} 40 69.46 {7.08} 45 61.75 {6.30} 50 55.57 {5.67} 55 50.52 {5.15} 60 46.31 {4.72} 65 42.75 {4.36} 70 39.69 {4.05} 75 37.05 {3.78} 80 34.73 {3.54} 90 30.87 {3.15} 100 27.79 {2.83} 110 25.26 {2.58} 120 23.15 {2.36} 125 22.23 {2.27} 130 21.37 {2.18} 140 19.85 {2.02} 150 18.52 {1.89} 160 17.37 {1.77} 170 16.34 {1.67} 175 15.88 {1.62} 180 15.44 {1.57} 190 14.62 {1.49} 200 13.89 {1.42} 250 11.11 {1.13} 300 9.26 {0.94}
9.0
SWN 14.5– 20 25 30 35 40 45 50 55 60 65 70 75 80 90
SWN 26– 30 35 40 45 50 55 60 65 70 75 80 90
SWN 37– 40 45 50 55 60 65 70 75 80 90
10.5 12.0 13.5 15.0 16.5 18.0 19.5 21.0 22.5 24.0 27.0 30.0 33.0 36.0 37.5 39.0 42.0 45.0 52.5 60.0 67.5 75.0 12.0 13.5 15.0 16.5 18.0 19.5 21.0 22.5 24.0 27.0 30.0 33.0 36.0 37.5 39.0 42.0 45.0 48.0 51.0 52.5 54.0 57.0 60.0 75.0 90.0
10.5 12.0 13.5 15.0 16.5 18.0 19.5 21.0 22.5 24.0 27.0 30.0 37.5 45.0
274.6 {28.0}
14.5 8.5
100 110 120 125 130 140 150 160 170 175 180 190 200 250 300
686.5 {70.0}
26 16.5
882.6 {90.0}
100 110 120 125 130 140 150 175 200 225 250
37 26
100 125 150
7.5 9.0
SWN 17– 25 30 35 40 45 50 55 60 65 70 75 80 90
10.5 12.0 13.5 15.0 16.5 18.0 19.5 21.0 22.5 24.0 27.0 30.0 37.5 45.0
SWN 31– 40 45 50 55 60 65 70 75 80 90
372.7 {38.0}
17 10.5
M Material Oil tempered wire for spring
● Load calculation method: Load = Spring constant x 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 × 35%) 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
100 125 150
100 110 120 125 130 140 150 160 170 175 180 190 200 250 300
9.0
SWN 21– 30 35 40 45 50 55 60 65 70 75 80 90
10.5 12.0 13.5 15.0 16.5 18.0 19.5 21.0 22.5 24.0 27.0 30.0 33.0 36.0 37.5 39.0 42.0 45.0 52.5 60.0
833.6 {85.0}
31 21
Part Number SWN21–100
Order
Quotation
Delivery
490.3 {50.0}
21 13.5
(NT) – NT –
Part Number
Alterations
100 110 120 125 130 140 150 175 200
SWN 31–70
Quotation
Alterations Code
Spec.
Paint peeling process D P.1147 Peel 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.
NT
No painting
1167
1168
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