COIL SPRINGS

Category Characteristics Type Outer
Diameter
Overall
Length
Allowable
Deflection
LoadN{kgf}
Part Number Color min. max. min. max. min. max.
Wire
Springs


•Designed to
have a
consistent
spring
constant
against the
diameter.
(Load varies depending
on the overall length.)
WY
(FA)
- φ3 φ16 5 70 75%
(1 million shots)
0.38
{0.04}
10.3
{1.05}
WR
(FA)
- φ3 φ27 5 90 60%
(1 million shots)
0.9
{0.09}
23.5
{2.4}
WF
(FA)
- φ3 φ27 5 90 45%
(1 million shots)
1.1
{0.11}
35.3
{3.6}
WL
(FA)
- φ2 φ27 5 100 40%
(1 million shots)
0.98
{0.1}
117.7
{12.0}
WT
(FA)
- φ3 φ27 5 80 40%
(1 million shots)
2.9
{0.3}
125.5
{12.8}
WM
(FA)
- φ3 φ27 5 100 35%
(1 million shots)
3.4
{0.4}
171.6
{17.5}
WH
(FA)
- φ4 φ27 5 100 30%
(1 million shots)
4.9
{0.5}
441.3
{45.0}
WB
(FA)
- φ3 φ27 5 100 25%
(1 million shots)
4.9
{0.5}
735.5
{75.0}
NWL
(Inner dia. st.)
(FA)
- φ5.5
(Inner dia.)
φ16.6
(Inner dia.)
30 60 40%
(1 million shots)
13.7
{1.4}
27.5
{2.8}
NWM
(Inner dia. st.)
(FA)
- φ5.5
(Inner dia.)
φ16.6
(Inner dia.)
30 60 32%
(1 million shots)
20.6
{2.1}
34.3
{3.5}
WP
(Long type)
(Press)
- φ11.5 φ17 100 500 70%
(1 million shots)
21.3
{2.2}
34.3
{3.5}


Temperature to be used
Data shown in the catalog on load, etc are based on measurements made at room temperature(40A or less), and depending on various conditions, use at temperatures above room temperature may lead to a reduction in load and the number of cycles for durability.
The products are to be used in temperatures of 80°C or less. The heat resistance temperature(round wire:120°C, irregular wire:200°C)for springs is higher that the temperatures for use, but a great reduction in functionality is expected at temperatures above the temperatures for use.Except Stainless type.
For the maximum allowable deflection of a heatproof spring at high temperature, see the table on the page at right.

Coil spring painting
MISUMI coil springs are painted for identification and to prevent corrosion.
Possible to peel the paint by alteration(excluding round wire).PDF (152KB)


Allowable deflection
Do not use with a greater deflection than the maximum values or load and durability will be reduced, and may result in breakage.
If round wire coil springs have even a single stroke larger than the maximum deflection, the L dimension is reduced.

Calculation of spring load
Load=spring constant×deflection
N=N/mm × Fmm(international units)
kgf=kgf/mm × Fmm
(kgf=N×0.101972)

Category Characteristics Type Outer
Diameter
Overall
Length
Allowable Deflection Load N{kgf}
Part Number Color min. max. min. max. Room
Tempera-
ture
Used
150°C
Used
200°C
Used
min. max.


•Designed to have a consistent spring
constant against the diameter.
(Load varies depending
on the
overall
length.)
•Operating temperature limit200°C
WFH - φ4 φ18 5 100 60%
(1 million shots)
54%
(1 million shots)
48%
(1 million shots)
1.5
{0.15}
58.8
{6.0}
WLH - φ4 φ18 5 100 50%
(1 million shots)
45%
(1 million shots)
40%
(1 million shots)
2.5
{0.25}
147.1
{15.0}
WMH - φ4 φ18 5 100 40%
(1 million shots)
36%
(1 million shots)
32%
(1 million shots)
3.9
{0.4}
196.1
{20.0}
WHH - φ4 φ18 5 100 35%
(1 million shots)
32%
(1 million shots)
28%
(1 million shots)
5
{0.5}
514.8
{52.5}

•For high deflection
•Designed to have a consistent spring
constant against the diameter
•Operating temperature limit200°C
SWY
(Ultra high deflection)
Pastel
green
φ11 φ42 20 300 65%
(1 million shots)
52%
(1 million shots)
46%
(1 million shots)
29.4
{3.0}
392.3
{40.0}
70%
(300,000 shots)
56%
(300,000 shots)
49%
(300,000 shots)
31.4
{3.2}
425.6
{43.4}
SWU
(Super high deflection)
Light
blue
φ10.5 φ43 15 300 60%
(1 million shots)
48%
(1 million shots)
42%
(1 million shots)
68.6
{7.0}
588.4
{60.0}
65%
(300,000 shots)
52%
(300,000 shots)
46%
(300,000 shots)
73.9
{7.5}
637.4
{65.0}
SWR
(High deflection)
Ivory
φ10.5 φ50 15 400 50%
(1 million shots)
40%
(1 million shots)
35%
(1 million shots)
78.5
{8.0}
1323.9
{135.0}
55%
(300,000 shots)
44%
(300,000 shots)
39%
(300,000 shots)
87.2
{8.8}
1456.3
{148.5}
SWS
(Medium deflection)
Orange
φ10.5 φ52 20 300 40%
(1 million shots)
32%
(1 million shots)
28%
(1 million shots)
87.2
{8.8}
1569.1
{160.0}
45%
(300,000 shots)
36%
(300,000 shots)
32%
(300,000 shots)
97.1
{9.9}
1765.2
{180.0}
SWN
(Low deflection)
Dark
brown
φ14.5 φ37 20 300 30%
(1 million shots)
25%
(1 million shots)
20%
(1 million shots)
274.6
{28.0}
882.6
{90.0}
35%
(300,000 shots)
30%
(300,000 shots)
25%
(300,000 shots)
304.0
{31.0}
980.7
{100.0}

Category Characteristics Type Diameter
Outer(Inner)
Overall
Length
Allowable
Deflection
Load N{kgf}
Part Number Color min. max. min. max. min. max.
Irregular Wire Springs For heavy load






•Designed to have a consistent spring constant against the diameter.
SWC
(Extra minimal load)
(Press)
Purple
φ6(φ3) φ30(φ15) 15 200 50%
(1 million shots)
27
{2.8}
392
{40.0}
60%
(300,000 shots)
32
{3.3}
471
{48.0}
SWF
(Minimal load)
(Press)
Yellow
φ6(φ3) φ70(φ38.5) 10 500 40%
(1 million shots)
47
{4.8}
3136
{320}
50%
(300,000 shots)
59
{6.0}
3920
{400}
SWL
(Light load)
(Press)
Blue
φ6(φ3) φ70(φ38.5) 10 350 32%
(1 million shots)
63
{6.4}
4782
{488}
40%
(300,000 shots)
78
{8.0}
5978
{610}
SWM
(Medium load)
(Press)
Red
φ6(φ3) φ70(φ38.5) 10 350 25.6%
(1 million shots)
78
{8.0}
6664
{680}
32%
(300,000 shots)
98
{10}
8330
{850}
SWH
(Heavy load)
(Press)
Green
φ6(φ3) φ70(φ38.5) 10 350 19.2%
(1 million shots)
110
{11}
10046
{1024}
24%
(300,000 shots)
137
{14}
12557
{1280}
SWB
(Extra heavy load)
(Press)
Brown
φ6(φ3) φ70(φ38.5) 10 350 16%
(1 million shots)
142
{14}
13655
{1392}
20%
(300,000 shots)
177
{18}
17069
{1740}
SWG
(Hyper heavy load)
(Press)
Black
φ10(φ5) φ50(φ25) 15 200 16%
(1 million shots)
392
{40}
9807
{1000}
20%
(300,000 shots)
490
{50}
12258
{1250}
For anticorrosive
and heat proof
SWUF
SWUL
SWUM
SWUH
(Press)
-
(no painting)
φ10(φ5) φ30(φ15) 20 60  
Product Name Gate-cut Springs Coil Spring Washers Spring Guide Pins
Part Number WSW WSV SSWA SSWB SSWC
(Press)
SGAMK SGA (Press)
 
Product Name Gas Springs for Plastic Mold Holders for Gas Spring  
Part Number MBPGS-A MBPGS-B MBPGS-H  
   

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