Round Wire Coil Springs / Deflection 60%-75% / O.D. Referenced (WY8-40)

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MISUMI

Product Details:

Manufacturer part number: WY8-40

Brand: MISUMI

Price: 1.03 €

Delivery time: Same day

Technical Data:

Allowable Load (Configurable Range): 1.51 to 4.50 N

Max. Load: 2.9 N

Height upon Max. Load applied L-F: 10 mm

Free Length L: 40 mm

Outer Dia. D (or D1): 8 mm

Part Number

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WY8-40

Drawing / Specifications
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Technical Information

Round Wire Coil Springs/Deflection 60%-75%/O.D. Referenced:Related Image

Material JIS-SWP-A

Specifications

Part Number

WY13-60

■Spring Constant D12 and 14 for WY Type and D12,14 and 20 for WT Type are not available.

Type

0.5{0.05}

N/mm
0.1
{kgf/mm}{0.01}

N/mm 0.3
{kgf/mm}{0.03}

N/mm 0.5
{kgf/mm}{0.05}

N/mm 1.0
{kgf/mm}{0.1}

1.5
{0.15}

2.0
{0.2}

3.9{0.4}

2.9{0.3}

4.9{0.5}

N/mm 2.0
{kgf/mm}{0.2}

N/mm 2.9
{kgf/mm}{0.3}

N/mm 5.9
{kgf/mm}{0.6}

N/mm 9.8
{kgf/mm}{1.0}

N/mm 0.2
{kgf/mm}{0.02}

N/mm 9.8
{kgf/mm}{1.0}

N/mm 19.6
{kgf/mm}{2.0}

N/mm 0.5
{kgf/mm}{0.05}

N/mm 1.0
{kgf/mm}{0.1}

N/mm 2.9
{kgf/mm}{0.3}

N/mm 3.9
{kgf/mm}{0.4}

N/mm 4.9
{kgf/mm}{0.5}

N/mm 14.7
{kgf/mm}{1.5}

29.4{3.0}

N/mm
29.4
{kgf/mm}
{3.0}

Fmax.

F=L×75%

F=L×60%

F=L×45%

F=L×40%

F=L×35%

F=L×30%

F=L×25%

■WY: Fmax. (Allowable Deflection) =Lx75%

d	Solid Length	F max.	Load N{kgf}max.	Part Number		Unit Price
d	Solid Length	F max.	Load N{kgf}max.	Type D-L		10 ~ 19 pcs.
0.16	1.0	3.75	0.38{0.04}	WY3-	5
0.2	2.0	7.5	0.75{0.08}		10
0.23	3.6	11.2	1.12{0.11}		15
0.23	3.6	15	1.5 {0.15}		20
0.25	5.5	18.7	1.87{0.19}		25
0.26	6.5	22.5	2.25{0.23}		30
0.2	1.1	3.75	0.38{0.04}	WY4-	5
0.23	1.9	7.5	0.7 {0.08}		10
0.23	1.9	11.2	1.1 {0.11}		15
0.25	2.7	15	1.5 {0.15}		20
0.29	5	18.7	1.8 {0.19}		25
0.29	5	22.5	2.2 {0.23}		30
0.32	7.7	26.2	2.6 {0.26}		35
0.32	7.7	30	2.9 {0.3}		40
0.25	1.7	7.5	0.7 {0.08}	WY5-	10
0.25	1.7	11.2	1.1 {0.11}		15
0.3	3.2	15	1.5 {0.15}		20
0.3	3.2	18.7	1.8 {0.19}		25
0.35	6.3	22.5	2.2 {0.23}		30
0.35	6.3	26.2	2.6 {0.26}		35
0.38	9.2	30	2.9 {0.3}		40
0.38	9.2	33.7	3.3 {0.34}		45
0.38	9.2	37.5	3.7 {0.38}		50
0.3	2.1	7.5	0.75{0.08}	WY6-	10
0.32	2.8	11.2	1.1 {0.11}		15
0.32	2.8	15	1.5 {0.15}		20
0.35	4.1	18.7	1.8 {0.19}		25
0.38	5.6	22.5	2.2 {0.23}		30
0.38	5.6	26.2	2.6 {0.26}		35
0.4	7.2	30	2.9{0.3}		40
0.4	7.2	33.7	3.3{0.34}		45
0.4	7.2	37.5	3.7{0.38}		50
0.45	12.2	41.2	4.0{0.41}		55
0.45	12.2	45	4.4{0.45}		60
0.45	12.2	48.7	4.8{0.49}		65
0.45	12.2	52.5	5.1{0.53}		70

d	Solid Length	F max.	Load N{kgf}max.	Part Number		Unit Price
d	Solid Length	F max.	Load N{kgf}max.	Type D-L		10 ~ 19 pcs.
0.35	2.1	7.5	0.75{0.08}	WY8-	10
0.38	3	11.2	1.1 {0.11}		15
0.4	3.5	15	1.5 {0.15}		20
0.4	3.5	18.7	1.8 {0.19}		25
0.45	5.7	22.5	2.2 {0.23}		30
0.45	5.7	26.2	2.6 {0.26}		35
0.45	5.7	30	2.9 {0.3}		40
0.45	5.7	33.7	3.3 {0.34}		45
0.5	9	37.5	3.7 {0.38}		50
0.5	9	41.2	4.0 {0.41}		55
0.5	9	45	4.4 {0.45}		60
0.5	9	48.7	4.8 {0.49}		65
0.5	9	52.5	5.1 {0.53}		70
0.5	3	11.2	2.26{0.23}	WY10-	15
0.55	4.6	15	2.9 {0.3}		20
0.55	4.6	18.7	3.7 {0.37}		25
0.6	6.6	22.5	4.4 {0.45}		30
0.6	6.6	26.2	5.1 {0.52}		35
0.65	9.1	30	5.9 {0.6}		40
0.65	9.1	33.7	6.6 {0.67}		45
0.65	9.1	37.5	7.4 {0.75}		50
0.7	12.6	41.2	8.1 {0.82}		55
0.7	12.6	45	8.8 {0.9}		60
0.7	12.6	48.7	9.6 {0.97}		65
0.7	12.6	52.5	10.3 {1.05}		70

d	Solid Length	F max.	Load N{kgf}max.	Part Number		Unit Price
d	Solid Length	F max.	Load N{kgf}max.	Type D-L		10 ~ 19 pcs.
0.6	3.9	15	2.9{0.3}	WY13-	20
0.65	5.1	18.7	3.7{0.37}		25
0.65	5.1	22.5	4.4{0.45}		30
0.7	6.7	26.2	5.1{0.52}		35
0.75	8.7	30	5.9{0.6}		40
0.75	8.7	33.7	6.6{0.67}		45
0.8	11.6	37.5	7.4{0.75}		50
0.8	11.6	41.2	8.1{0.82}		55
0.8	11.6	45	8.8{0.9}		60
0.85	15.3	48.7	9.6{0.97}		65
0.85	15.3	52.5	10.3{1.05}		70
0.65	3.6	15	2.9{0.3}	WY16-	20
0.7	4.6	18.7	3.7{0.37}		25
0.75	5.7	22.5	4.4{0.45}		30
0.8	7	26.2	5.1{0.52}		35
0.85	9	30	5.9{0.6}		40
0.85	9	33.7	6.6{0.67}		45
0.9	11.3	37.5	7.4{0.75}		50
0.9	11.3	41.2	8.1{0.82}		55
0.9	11.3	45	8.8{0.9}		60
0.9	11.3	48.7	9.6{0.97}		65
0.9	11.3	52.5	10.3{1.05}		70

• Load calculation method = Spring constant x Deflection
(Int'l Unit) N=N/mmxFmm
kgf=kgf/mmxFmm
(kgf=Nx0.101972)

Both ends of WR Type springs are not ground.
The values of solid length are for reference only. There may be some variations depending on the lot.
Usage Count: 1 Million Times
Product Outline >>P.327
How to use coil springs, and precautions >>P.328

■WR: Fmax. (Allowable Deflection) = Lx60%

d	Solid Length	F max.	Load N{kgf}max.	Part Number		Unit Price
d	Solid Length	F max.	Load N{kgf}max.	Type D-L		10 ~ 19 pcs.
0.23	1.8	3	0.9{0.09}	WR3-	5
0.25	2.3	6	1.8{0.18}		10
0.3	4.8	9	2.6{0.27}		15
0.3	4.8	12	3.5{0.36}		20
0.32	6.8	15	4.4{0.45}		25
0.32	6.8	18	5.3{0.54}		30
0.35	11.5	21	6.2{0.63}		35
0.35	11.5	24	7.1{0.72}		40
0.26	1.6	3	0.9{0.09}	WR4-	5
0.29	2.2	6	1.8{0.18}		10
0.32	3.2	9	2.6{0.27}		15
0.38	6.5	12	3.5{0.36}		20
0.38	6.5	15	4.4{0.45}		25
0.4	8.4	18	5.3{0.54}		30
0.4	8.4	21	6.2{0.63}		35
0.45	15	24	7.1{0.72}		40
0.45	15	27	7.9{0.81}		45
0.45	15	30	8.8{0.9 }		50
0.45	15	33	9.7{0.99}		55
0.5	23.5	36	10.6{1.08}		60
0.5	25	39	11.5{1.17}		65
0.5	25	42	12.4{1.26}		70
0.3	1.6	3	0.9{0.09}	WR5-	5
0.35	2.8	6	1.8{0.18}		10
0.35	2.8	9	2.6{0.27}		15
0.4	4.8	12	3.5{0.36}		20
0.45	8	15	4.4{0.45}		25
0.45	8	18	5.3{0.54}		30
0.5	12.5	21	6.2{0.63}		35
0.5	12.5	24	7.1{0.72}		40
0.55	17.6	27	7.9{0.81}		45
0.55	18	30	8.8{0.9}		50
0.55	20	33	9.7{0.99}		55
0.55	20	36	10.6{1.08}		60
0.55	20.9	39	11.5{1.2}		65
0.55	20.9	42	12.4{1.3}		70
0.32	1.6	3	0.9{0.09}	WR6-	5
0.4	3.2	6	1.8{0.18}		10
0.4	3.2	9	2.6{0.27}		15
0.5	7.5	12	3.5{0.36}		20
0.5	7.5	15	4.4{0.45}		25
0.5	7.5	18	5.3{0.54}		30
0.55	11.5	21	6.2{0.63}		35
0.55	11.5	24	7.1{0.72}		40
0.6	17.4	27	7.9{0.81}		45
0.6	17.4	30	8.8{0.9}		50
0.6	17.4	33	9.7{0.99}		55
0.6	17.4	36	10.6{1.08}		60
0.6	17.4	39	11.5{1.17}		65
0.6	17.4	42	12.4{1.26}		70
0.65	27.3	48	14.1{1.4 }		80
0.45	2.7	6	1.8{0.18}	WR8-	10
0.5	4	9	2.6{0.27}		15
0.5	4	12	3.5{0.36}		20
0.55	5.8	15	4.4{0.45}		25
0.6	8.4	18	5.3{0.54}		30
0.6	8.4	21	6.2{0.63}		35
0.6	8.4	24	7.1{0.72}		40
0.7	16	27	7.9{0.81}		45
0.7	16	30	8.8{0.9}		50
0.7	16	33	9.7{0.99}		55
0.7	16	36	10.6{1.08}		60
0.7	16	39	11.5{1.17}		65
0.7	16	42	12.4{1.26}		70
0.75	22.9	48	14.1{1.4}		80

d	Solid Length	F max.	Load N{kgf}max.	Part Number		Unit Price
d	Solid Length	F max.	Load N{kgf}max.	Type D-L		10 ~ 19 pcs.
0.55	3.6	6	1.8{0.18}	WR10-	10
0.6	4.8	9	2.6{0.27}		15
0.65	6.5	12	3.5{0.36}		20
0.65	6.5	15	4.4{0.45}		25
0.7	8.8	18	5.3{0.54}		30
0.7	8.8	21	6.2{0.63}		35
0.7	8.8	24	7.1{0.72}		40
0.8	16	27	7.9{0.81}		45
0.8	16	30	8.8{0.9}		50
0.8	16	33	9.7{0.99}		55
0.85	21	36	10.6{1.08}		60
0.85	21	39	11.5{1.17}		65
0.85	21	42	12.4{1.26}		70
0.9	28.8	48	14.1{1.4}		80
0.6	3.6	6	1.8{0.18}	WR12-	10
0.65	4.6	9	2.6{0.27}		15
0.65	4.6	12	3.5{0.36}		20
0.7	6	15	4.4{0.45}		25
0.7	6	18	5.3{0.54}		30
0.7	6	21	6.2{0.63}		35
0.8	10.4	24	7.1{0.72}		40
0.8	10.4	27	7.9{0.81}		45
0.9	17.1	30	8.8{0.9}		50
0.9	17.1	33	9.7{0.99}		55
0.9	17.1	36	10.6{1.08}		60
0.9	17.1	39	11.5{1.17}		65
0.9	17.1	42	12.4{1.26}		70
1.0	28	48	14.1{1.4}		80
0.6	3.2	6	1.8{0.18}	WR13-	10
0.7	4.9	9	2.6{0.27}		15
0.7	4.9	12	3.5{0.36}		20
0.8	8.4	15	4.4{0.45}		25
0.8	8.4	18	5.3{0.54}		30
0.8	8.4	21	6.2{0.63}		35
0.9	13.5	24	7.1{0.72}		40
0.9	13.5	27	7.9{0.81}		45
0.9	13.5	30	8.8{0.9}		50
0.9	13.5	33	9.7{0.99}		55
1.0	22	36	10.6{1.08}		60
1.0	22	39	11.5{1.17}		65
1.0	22	42	12.4{1.26}		70
1.0	22	48	14.1{1.4}		80
1.0	22	54	15.9{1.62}		90
0.7	4.6	9	2.6{0.27}	WR14-	15
0.75	5.6	12	3.5{0.36}		20
0.8	7.2	15	4.4{0.45}		25
0.8	7.2	18	5.3{0.54}		30
0.8	7.2	21	6.2{0.63}		35
0.9	11.3	24	7.1{0.72}		40
0.9	11.3	27	7.9{0.81}		45
0.9	11.3	30	8.8{0.9}		50
1.0	18	33	9.7{0.99}		55
1.0	18	36	10.6{1.08}		60
1.0	18	39	11.5{1.17}		65
1.0	18	42	12.4{1.26}		70
1.1	28.6	48	14.1{1.4}		80
1.1	28.6	54	15.9{1.62}		90

d	Solid Length	F max.	Load N{kgf}max.	Part Number		Unit Price
d	Solid Length	F max.	Load N{kgf}max.	Type D-L		10 ~ 19 pcs.
0.75	4.5	9	2.6{0.27}	WR16-	15
0.8	5.6	12	3.5{0.36}		20
0.9	8	15	4.4{0.45}		25
0.9	8	18	5.3{0.54}		30
0.9	8	21	6.2{0.63}		35
1.0	13	24	7.1{0.72}		40
1.0	13	27	7.9{0.81}		45
1.0	13	30	8.8{0.9}		50
1.0	13	33	9.7{0.99}		55
1.1	20	36	10.6{1.08}		60
1.1	20	39	11.5{1.17}		65
1.1	20	42	12.4{1.26}		70
1.1	20	48	14.1{1.4}		80
1.2	28.8	54	15.9{1.62}		90
1.0	7	12	5.8{0.6}	WR18-	20
1.0	7	15	7.4{0.75}		25
1.1	9.9	18	8.8{0.9}		30
1.1	9.9	21	10.3{1.05}		35
1.2	14.4	24	11.8{1.2}		40
1.2	14.4	27	13.2{1.35}		45
1.2	14.4	30	14.7{1.5}		50
1.3	19.5	33	16.2{1.65}		55
1.3	19.5	36	17.7{1.8}		60
1.3	19.5	39	19.1{1.95}		65
1.3	19.5	42	20.6{2.1}		70
1.4	27.3	48	23.5{2.4}		80
1.0	6	12	5.8{0.6}	WR20-	20
1.1	8.3	15	7.4{0.75}		25
1.1	8.3	18	8.8{0.9}		30
1.2	10.8	21	10.3{1.05}		35
1.2	10.8	24	11.8{1.2}		40
1.2	10.8	27	13.2{1.35}		45
1.3	15	30	14.7{1.5}		50
1.3	15	33	16.2{1.65}		55
1.3	15	36	17.7{1.8}		60
1.3	15	39	19.1{1.95}		65
1.4	21	42	20.6{2.1}		70
1.4	21	48	23.5{2.4}		80
1.1	6.9	12	5.9{0.6}	WR22-	20
1.2	9	15	7.4{0.75}		25
1.2	9	18	8.8{0.9}		30
1.3	12.4	21	10.3{1.05}		35
1.3	12.4	24	11.8{1.2}		40
1.3	12.4	27	13.2{1.35}		45
1.4	16.1	30	14.7{1.5}		50
1.4	16.1	33	16.2{1.65}		55
1.4	16.1	36	17.7{1.8}		60
1.5	22.5	39	19.1{1.95}		65
1.5	22.5	42	20.6{2.1}		70
1.5	22.5	48	23.5{2.4}		80
1.3	8.5	18	8.8{0.9}	WR27-	30
1.4	10.5	21	10.3{1.05}		35
1.4	10.5	24	11.8{1.2}		40
1.4	10.5	27	13.2{1.35}		45
1.6	17.6	30	14.7{1.5}		50
1.6	17.6	33	16.2{1.65}		55
1.6	17.6	36	17.7{1.8}		60
1.7	22.1	39	19.1{1.95}		65
1.7	22.1	42	20.6{2.1}		70
1.7	22.1	48	23.5{2.4}		80

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Data to be displayed: 30; 45; 60

Part Number
WY8-40

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Allowable Load (Configurable Range) (N)	Max. Load (N)	Height upon Max. Load applied L-F (mm)	Free Length L (mm)	Outer Dia. D (or D1) (mm)	Inner Dia. D-2d (or D) (mm)	Spring Constant (N/mm)	Wire Dia. (mm)	Solid Length (mm)	Allowable Deflection (mm)
	1.03 €	1		Same day Stock	10	1.51 to 4.50	2.9	10	40	8	7.1	0.1	0.45	5.7	30

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Basic information

Material	JIS-SWP-A	End Surface Status	Without Grinding

This page is Round Wire Coil Springs / Deflection 60%-75% / O.D. Referenced, part number WY8-40.
You can find the detail information about specifications and dimensions on part number WY8-40.

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Basic Attributes

Type
- WR
- WY
Clear
Allowable Load (Configurable Range)(N)
- Up to 1.50
- 1.51 to 4.50
- 4.51 to 8.50
- 8.51 to 16.00
- 16.01 to 30.00
Clear
Max. Load(N)
0.38

0.7

0.75

0.9

1.1

1.12

1.5

1.8

1.87

2.2

2.25

2.26

2.6

2.9

3.3

3.5

3.7

4

4.4

4.8

5.1

5.3

5.8

5.9

6.2

6.6

7.1

7.4

7.9

8.1

8.8

9.6

9.7

10.3

10.6

11.5

11.8

12.4

13.2

14.1

14.7

15.9

16.2

17.7

19.1

20.6

23.5
Clear
Height upon Max. Load applied L-F(mm)
1.25

2

2.5

3.8

4

5

6

6.3

7.5

8

8.8

10

11.3

12

12.5

13.8

14

15

16

16.3

17.5

18

20

22

24

26

28

32

36
Clear
Free Length L(mm)
5

10

15

20

25

30

35

40

45

50

55

60

65

70

80

90
Clear
Outer Dia. D (or D1)(mm)
3

4

5

6

8

10

12

13

14

16

18

20

22

27
Clear
Inner Dia. D-2d (or D)(mm)
2.3

2.36

2.4

2.48

2.5

2.54

2.6

2.68

3

3.1

3.2

3.24

3.36

3.42

3.48

3.5

3.54

3.6

3.9

4

4.1

4.2

4.24

4.3

4.4

4.5

4.7

4.8

4.9

5

5.1

5.2

5.24

5.3

5.36

5.4

6.5

6.6

6.8

6.9

7

7.1

7.2

7.24

7.3

8.2

8.3

8.4

8.6

8.7

8.8

8.9

9

10

10.2

10.4

10.6

10.7

10.8

11

11.2

11.3

11.4

11.5

11.6

11.7

11.8

12

12.2

12.4

12.5

12.6

13.6

13.8

14

14.2

14.3

14.4

14.5

14.6

14.7

15.2

15.4

15.6

15.8

16

17.2

17.4

17.6

17.8

18

19

19.2

19.4

19.6

19.8

23.6

23.8

24.2

24.4
Clear
Spring Constant(N/mm)
0.1

0.2

0.3

0.5
Clear
Wire Dia.(mm)
0.16

0.2

0.23

0.25

0.26

0.29

0.3

0.32

0.35

0.38

0.4

0.45

0.5

0.55

0.6

0.65

0.7

0.75

0.8

0.85

0.9

1

1.1

1.2

1.3

1.4

1.5

1.6

1.7
Clear
Solid Length(mm)
1

1.1

1.6

1.7

1.8

1.9

2

2.1

2.2

2.3

2.7

2.8

3

3.2

3.5

3.6

3.9

4

4.1

4.5

4.6

4.8

4.9

5

5.1

5.5

5.6

5.7

5.8

6

6.3

6.5

6.6

6.7

6.8

6.9

7

7.2

7.5

7.7

8

8.3

8.4

8.5

8.7

8.8

9

9.1

9.2

9.9

10.4

10.5

10.8

11.3

11.5

11.6

12.2

12.4

12.5

12.6

13

13.5

14.4

15

15.3

16

16.1

17.1

17.4

17.6

18

19.5

20

20.9

21

22

22.1

22.5

22.9

23.5

25

27.3

28

28.6

28.8
Clear
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Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Variation of this product

Part Number
WR10-25
WR10-30
WR10-35
WY8-45
WY8-50
WY8-55

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Allowable Load (Configurable Range) (N)	Max. Load (N)	Height upon Max. Load applied L-F (mm)	Free Length L (mm)	Outer Dia. D (or D1) (mm)	Inner Dia. D-2d (or D) (mm)	Spring Constant (N/mm)	Wire Dia. (mm)	Solid Length (mm)	Allowable Deflection (mm)
1.03 €	1	Available	Same day Stock	10	1.51 to 4.50	4.4	10	25	10	8.7	0.3	0.65	6.5	15
1.03 €	1	Available	Same day Stock	10	4.51 to 8.50	5.3	12	30	10	8.6	0.3	0.7	8.8	18
1.03 €	1	Available	Same day Stock	10	4.51 to 8.50	6.2	14	35	10	8.6	0.3	0.7	8.8	21
1.03 €	1	Available	5 Days	10	1.51 to 4.50	3.3	11.3	45	8	7.1	0.1	0.45	5.7	33.7
1.02 €	1	Available	Same day Stock	10	1.51 to 4.50	3.7	12.5	50	8	7	0.1	0.5	9	375
1.09 €	1		5 Days	10	1.51 to 4.50	4	13.8	55	8	7	0.1	0.5	9	41.2