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Part Number Complete

UY4-20

type Free Length L Outer Dia. D (or D1) Height with the max. load applied ([Free Length] – [Allowable Deflection]) Spring Constant Allowable Load (Configurable Range) Max. Load Wire Dia. End Surface Status Solid Length CAD Days to Ship

Specification/Dimensions

type
- UF
- UR
- UV
- UY
Clear
Free Length L(mm)
5

10

15

20

25

30

35

40

45

50

60

70

80
Clear
Outer Dia. D (or D1)(Ø)
2

3

4

5

6

8

10

12

13

16

20
Clear
Height with the max. load applied ([Free Length] – [Allowable Deflection])(mm)
1.25

1.5

2

2.5

2.75

3

3.75

4

4.5

5

5.5

6

6.25

7.5

8

8.25

8.3

8.75

9

10

10.5

11

11.25

12

12.5

13.5

13.75

13.8

14

15

16

16.5

17.5

18

19.25

19.3

20

22

23

24

24.75

25

27.5

28

29

30.1$30

32

33

38.5

44
Clear
Spring Constant(N/mm)
0.05

0.098

0.2

0.29

0.3

0.49

0.5

0.98
Clear
Allowable Load (Configurable Range)(N)
- ~1.50
- 1.51~4.50
- 4.51~8.50
- 8.51~16.00
- 16.01~30.00
- 30.01~50.00
Clear
Max. Load(N)
0.15

0.18

0.29

0.34

0.35

0.37

0.44

0.49

0.53

0.59

0.66

0.7

0.74

0.88

0.9

0.98

1.05

1.1

1.18

1.23

1.3

1.4

1.47

1.5

1.58

1.75

1.77

1.8

1.84

2

2.06

2.2

2.206

2.21

2.26

2.5

2.55

2.6

2.7

2.9

2.94

2.942

3.2

3.3

3.33

3.43

3.5

3.53

3.68

4

4.4

4.41

5.1

5.15

5.3

5.49

5.5

5.88

5.9

6.2

6.3

6.6

6.62

6.7

7.1

7.35

7.4

7.6

7.65

7.7

7.8

7.9

8.8

8.83

8.9

9.8

9.9

10

10.3

10.6

10.8

11.03

11.1

11.2

11.6

11.77

11.8

12.4

12.7

13.2

13.24

13.4

14.1

14.7

15.45

15.5

17.65

17.7

19.9

20.6

22.1

23.5

26.5

30.9

35.3
Clear
Wire Dia.(Ø)
0.13

0.15

0.16

0.18

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
End Surface Status
- With Grinding
- Without Grinding
Clear
Solid Length(mm)
0.92

1.05

1.1

1.15

1.2

1.24

1.4

1.5

1.6

1.65

1.7

1.8

1.82

1.84

1.9

2

2.01

2.1

2.19

2.2

2.35

2.5

2.6

2.64

2.7

2.71

2.86

2.9

3

3.15

3.2

3.25

3.3

3.4

3.45

3.5

3.6

3.61

3.75

3.85

4.16

4.2

4.3

4.4

4.5

4.6

4.64

4.7

4.9

4.95

5

5.2

5.32

5.4

5.44

5.53

5.6

5.9

6

6.1

6.15

6.2

6.24

6.3

6.4

6.5

6.8

7

7.2

7.35

7.43

7.5

7.7

7.75

7.8

8

8.25

8.3

8.4

8.45

8.5

9.1

9.3

9.5

9.6

9.8

10.4

10.5

10.8

11

11.2

11.9

12

12.1

12.25

12.4

12.7

12.8

13.5

13.6

14

14.3

14.4

14.45

15.2

15.4

15.5

15.6

15.8

16.2

17

17.4

18

18.4

19

19.5

19.53

19.6

20.4

20.8

21

21.5

22.6

23

23.1

23.4

26

26.4

27

27.6

27.95

28

30

30.8

35

39.6
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

3 Day(s) or Less
Clear

Specify Alterations

Round Wire Coil Springs/Deflection 45%/O.D. Referenced (UY4-20)

Name: Round Wire Coil Springs/Deflection 45%/O.D. Referenced
Brand: MISUMI
Price: 72.8 THB
Availability: InStock

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Product Description

This is a standardized series so that the spring constant is constant for the same diameter.
[Features]
· UV/UY type, Maximum allowable deflection 75%
· UR type, Maximum allowable deflection 60%
· UF type, Maximum allowable deflection 40%

[ M ]Material SUS304-WPB Spring Constant ±10%

Specifications

Part Number

UY4-25
UR13-60
UF8-70

■UV: Fmax. (Allowable Deflection) =LxFa%

Part Number		d	Solid Length	F max.	N{kgf}max.	Fa%	Unit Price
TypeD-L		d	Solid Length	F max.	N{kgf}max.	Fa%	Unit Price
UV3-	5	0.15	1.1	3.5	0.18{0.018}	70
	10	0.18	2.5	7	0.35{0.036}
	15	0.18	2.5	10.5	0.53{0.054}
	20	0.20	3.3	14	0.70{0.071}
	25	0.23	6.2	17.5	0.88{0.089}
	30	0.23	6.2	21	1.05{0.107}
UV4-	5	0.18	1.2	3.5	0.18{0.018}
	10	0.20	1.7	7	0.35{0.036}
	15	0.23	3.0	10.5	0.53{0.054}
	20	0.23	3.0	14	0.70{0.071}
	25	0.26	4.9	17.5	0.88{0.089}
	30	0.26	4.9	21	1.05{0.107}
UV5-	5	0.20	1.2	3.5	0.18{0.018}
	10	0.23	1.8	7	0.35{0.036}
	15	0.26	2.9	10.5	0.53{0.054}
	20	0.29	4.5	14	0.70{0.071}
	25	0.29	4.5	17.5	0.88{0.089}
	30	0.29	4.5	21	1.05{0.107}
UV6-	10	0.26	2.0	7	0.35{0.036}
	15	0.30	3.3	10.5	0.53{0.054}
	20	0.30	3.3	14	0.70{0.071}
	25	0.35	6.5	17.5	0.88{0.089}
	30	0.35	6.5	21	1.05{0.107}
	35	0.35	6.5	24.5	1.23{0.125}
	40	0.35	6.5	28	1.40{0.143}
UV8-	10	0.30	1.9	7	0.35{0.036}
	15	0.35	3.2	10.5	0.53{0.054}
	20	0.35	3.2	14	0.70{0.071}
	25	0.40	5.6	17.5	0.88{0.089}
	30	0.40	5.6	21	1.05{0.107}
	35	0.40	5.6	24.5	1.23{0.125}
	40	0.45	9.3	28	1.40{0.143}
	45	0.45	9.3	31.5	1.58{0.161}
	50	0.45	9.3	35	1.75{0.179}

■UY: Fmax. (Allowable Deflection) =LxFa%

Part Number		d	Solid Length	F max.	N{kgf}max.	Fa%	Unit Price
TypeD-L		d	Solid Length	F max.	N{kgf}max.	Fa%	Unit Price
UY2-	5	0.13	1.5	3	0.15{0.015}	60
	10	0.13	1.5	6	0.29{0.03}
	15	0.15	2.7	9	0.44{0.045}
	20	0.15	2.7	12	0.59{0.06}
	25	0.18	6.3	15	0.74{0.075}
	30	0.18	6.3	18	0.88{0.09}
UY3-	5	0.16	0.92	3.75	0.37{0.0375}	75
	10	0.2	2	7.5	0.74{0.075}
	15	0.23	3.45	11.25	1.10{0.1125}
	20	0.23	3.45	15	1.47{0.15}
	25	0.26	6.24	15	1.47{0.15}	60
	30	0.26	6.24	18	1.77{0.18}	60
UY4-	5	0.2	1.05	3.75	0.37{0.0375}	75
	10	0.23	1.84	7.5	0.74{0.075}
	15	0.26	2.86	11.25	1.10{0.1125}
	20	0.29	4.64	15	1.47{0.15}
	25	0.3	5.4	18.75	1.84{0.1875}
	30	0.3	5.4	22.5	2.26{0.23}
UY5-	5	0.23	1.15	3.75	0.37{0.0375}	75
	10	0.26	1.82	7.5	0.74{0.075}
	15	0.3	3.15	11.25	1.10{0.1125}
	20	0.3	3.15	15	1.47{0.15}
	25	0.32	4.16	18.75	1.84{0.1875}
	30	0.32	4.16	22.5	2.26{0.23}
	35	0.35	6	26.25	2.55{0.26}
	40	0.35	6	30	2.94{0.3}
UY6-	5	0.26	1.24	3.5	0.34{0.035}	70
	10	0.3	2.1	7.5	0.74{0.075}	75
	15	0.32	2.64	11.25	1.10{0.1125}
	20	0.35	3.85	15	1.47{0.15}
	25	0.38	5.32	18.75	1.84{0.1875}
	30	0.4	6.8	22.5	2.21{0.225}
	35	0.4	6.8	26.25	2.55{0.26}
	40	0.4	6.8	30	2.94{0.3}
UY8-	10	0.35	2.19	7.5	0.74{0.075}	75
	15	0.4	3.4	11.25	1.10{0.1125}
	20	0.4	3.4	15	1.47{0.15}
	25	0.45	5.4	18.75	1.84{0.1875}
	30	0.45	5.4	22.5	2.21{0.225}
	35	0.5	8.3	26.25	2.55{0.26}
	40	0.5	8.3	30	2.94{0.3}
	45	0.5	8.3	33.75	3.33{0.34}
	50	0.55	12.7	35	3.43{0.35}	70
UY10-	10	0.5	3.25	6	1.18{0.12}	60
	15	0.5	3.25	11.25	2.21{0.225}	75
	20	0.55	4.4	15	2.94{0.3}
	25	0.55	4.4	18.75	3.68{0.375}
	30	0.6	6.15	22.5	4.41{0.45}
	35	0.6	6.3	26.25	5.10{0.52}
	40	0.6	6.3	30	5.88{0.6}
	45	0.65	8.45	33.75	6.62{0.675}
	50	0.65	8.45	37.5	7.35{0.75}
UY12-	15	0.55	3.3	11.25	2.206{0.225}	75
	20	0.55	3.3	15	2.942{0.3}
	25	0.6	4.2	18.75	3.68{0.375}
	30	0.65	5.53	22.5	4.41{0.45}
	35	0.65	5.53	26.25	5.15{0.525}
	40	0.7	7.35	30	5.88{0.6}
	45	0.7	7.35	33.75	6.62{0.675}
	50	0.7	7.35	37.5	7.35{0.75}
	60	0.8	13.6	45	8.83{0.9}
	70	0.8	13.6	52.5	10.30{1.05}
	80	0.8	13.6	60	11.77{1.2}
UY13-	15	0.6	3.75	10.5	2.06{0.21}	70
	20	0.6	3.75	15	2.94{0.3}	75
	25	0.65	4.9	18.75	3.68{0.375}
	30	0.65	4.9	22.5	4.41{0.45}
	35	0.7	6.3	26.25	5.15{0.525}
	40	0.75	8.25	30	5.88{0.6}
	45	0.75	8.25	33.75	6.62{0.675}
	50	0.8	11.2	37.5	7.35{0.75}
	60	0.8	11.2	45	8.83{0.9}
	70	0.85	14.45	52.5	10.30{1.05}
	80	0.85	14.45	60	11.77{1.2}
UY16-	15	0.7	4.2	9	1.77{0.18}	60
	20	0.7	4.2	15	2.94{0.3}	75
	25	0.7	4.2	18.75	3.68{0.375}
	30	0.75	5.44	22.5	4.41{0.45}
	35	0.8	6.8	26.25	5.15{0.525}
	40	0.8	6.8	30	5.88{0.6}
	45	0.85	8.5	33.75	6.62{0.675}
	50	0.9	10.8	37.5	7.35{0.75}
	60	0.9	10.8	45	8.83{0.9}
	70	1	17	52.5	10.30{1.05}
	80	1	17	60	11.77{1.2}
UY20-	20	0.9	5.4	12	3.53{0.36}	60
	25	0.9	5.4	18.75	5.49{0.56}	75
	30	0.9	5.4	22.5	6.62{0.675}
	35	1	7.5	26.25	7.65{0.78}
	40	1	7.5	30	8.83{0.9}
	45	1	7.5	33.75	9.90{1.01}
	50	1.1	11	37.5	11.03{1.125}
	60	1.1	11	45	13.24{1.35}
	70	1.2	15.6	52.5	15.45{1.58}
	80	1.2	15.6	60	17.65{1.8}

■UR: Fmax. (Allowable Deflection) =LxFa%

Part Number		d	Solid Length	F max.	N{kgf}max.	Fa%	Unit Price
TypeD-L		d	Solid Length	F max.	N{kgf}max.	Fa%	Unit Price
UR2-	5	0.18	2.0	2.5	0.49{0.05}	50
	10	0.18	2.0	5	0.98{0.1}
	15	0.23	6.0	7.5	1.5{0.15}
	20	0.23	6.0	10	2.0{0.2}
	25	0.26	11.2	12.5	2.5{0.25}
	30	0.26	11.2	15	2.9{0.3}
UR3-	5	0.23	1.6	3	0.9{0.09}	60
	10	0.25	2.1	6	1.8{0.18}
	15	0.3	4.5	9	2.6{0.27}
	20	0.3	4.5	12	3.5{0.36}
	25	0.32	6.4	15	4.4{0.45}
	30	0.32	6.4	18	5.3{0.54}
	35	0.35	9.8	21	6.2{0.63}
	40	0.35	9.8	24	7.1{0.72}
UR4-	5	0.26	1.4	3	0.9{0.09}	60
	10	0.29	2	6	1.8{0.18}
	15	0.32	3	9	2.6{0.27}
	20	0.38	6.1	12	3.5{0.36}
	25	0.38	6.1	15	4.4{0.45}
	30	0.40	8	18	5.3{0.54}
	35	0.40	8	21	6.2{0.63}
	40	0.45	14.4	24	7.1{0.72}
	45	0.45	14.4	27	7.9{0.81}
	50	0.45	14.4	30	8.8{0.9}
	60	0.5	23	36	10.6{1.08}
UR5-	5	0.3	1.65	3	0.9{0.09}	60
	10	0.35	2.71	6	1.8{0.18}
	15	0.38	3.61	9	2.6{0.27}
	20	0.38	3.61	12	3.5{0.36}
	25	0.45	7.43	15	4.4{0.45}
	30	0.45	7.43	18	5.3{0.54}
	35	0.5	12.25	21	6.2{0.63}
	40	0.5	12.25	24	7.1{0.72}
	45	0.5	12.25	27	7.9{0.81}
	50	0.55	19.53	30	8.8{0.9}
	60	0.55	19.53	36	10.6{1.08}
UR6-	5	0.32	1.5	3	0.9{0.09}	60
	10	0.4	3	6	1.8{0.18}
	15	0.4	3	9	2.6{0.27}
	20	0.5	7	12	3.5{0.36}
	25	0.5	7	15	4.4{0.45}
	30	0.5	7	18	5.3{0.54}
	35	0.55	11	21	6.2{0.63}
	40	0.55	11	24	7.1{0.72}
	45	0.6	17.4	27	7.9{0.81}
	50	0.6	17.4	30	8.8{0.9}
	60	0.65	23.4	36	10.6{1.08}
	70	0.65	23.4	42	12.4{1.26}
UR8-	10	0.45	2.6	6	1.8{0.18}	60
	15	0.5	3.6	9	2.6{0.27}
	20	0.5	3.6	12	3.5{0.36}
	25	0.55	5.9	15	4.4{0.45}
	30	0.65	10.4	18	5.3{0.54}
	35	0.65	10.4	21	6.2{0.63}
	40	0.7	15.4	24	7.1{0.72}
	45	0.75	21	22	6.3{0.66}	50
	50	0.75	21	27	7.8{0.81}	55
	60	0.8	27.6	31	8.9{0.93}	52
	70	0.8	27.6	39.9	11.6{1.20}	57
	80	0.8	27.6	48	14.1{1.44}	60
UR10-	10	0.55	3.3	6	1.8{0.18}	60
	15	0.6	4.2	9	2.6{0.27}
	20	0.65	6.2	12	3.5{0.36}
	25	0.65	6.2	15	4.4{0.45}
	30	0.7	8.4	18	5.3{0.54}
	35	0.7	8.4	21	6.2{0.63}
	40	0.7	8.4	24	7.1{0.72}
	45	0.8	15.2	27	7.9{0.81}
	50	0.8	15.2	30	8.8{0.9}
	60	0.85	20.4	36	10.6{1.08}
	70	0.85	20.4	42	12.4{1.26}
	80	0.85	20.4	48	14.1{1.44}
UR12-	15	0.6	3.5	9	2.6{0.27}	60
	20	0.7	5.6	12	3.5{0.36}
	25	0.7	5.6	15	4.4{0.45}
	30	0.8	9.6	18	5.3{0.54}
	35	0.8	9.6	21	6.2{0.63}
	40	0.8	9.6	24	7.1{0.72}
	45	0.9	16.2	27	7.9{0.81}
	50	0.9	16.2	30	8.8{0.9}
	60	0.9	16.2	36	10.6{1.08}
	70	1	26	42	12.4{1.26}
	80	1	26	48	14.1{1.44}
UR13-	15	0.7	4.7	9	2.6{0.27}	60
	20	0.7	4.7	12	3.5{0.36}
	25	0.8	8	15	4.4{0.45}
	30	0.8	8	18	5.3{0.54}
	35	0.8	8	21	6.2{0.63}
	40	0.9	12.8	24	7.1{0.72}
	45	0.9	12.8	27	7.9{0.81}
	50	0.9	12.8	30	8.8{0.9}
	60	1.0	21	36	10.6{1.08}
	70	1.0	21	42	12.4{1.26}
	80	1.0	21	48	14.1{1.44}
UR16-	15	0.75	4.3	9	2.6{0.27}	60
	20	0.8	5.4	12	3.5{0.36}
	25	0.9	7.7	15	4.4{0.45}
	30	0.9	7.7	18	5.3{0.54}
	35	1.0	12	21	6.2{0.63}
	40	1.0	12	24	7.1{0.72}
	45	1.0	12	27	7.9{0.81}
	50	1.1	19	30	8.8{0.9}
	60	1.1	19	36	10.6{1.08}
	70	1.2	26.4	42	12.4{1.26}
	80	1.2	26.4	48	14.1{1.44}
UR20-	20	1.0	6	12	5.9{0.6}	60
	25	1.1	7.7	15	7.4{0.75}
	30	1.1	7.7	18	8.8{0.9}
	35	1.2	10.8	21	10.3{1.05}
	40	1.2	10.8	24	11.8{1.2}
	45	1.3	14.3	27	13.2{1.35}
	50	1.3	14.3	30	14.7{1.5}
	60	1.4	19.6	36	17.7{1.8}
	70	1.4	19.6	42	20.6{2.1}
	80	1.5	27	48	23.5{2.4}

[ ! ]Both ends of UR 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

■UF: Fmax. (Allowable Deflection) =Lx45%

Part Number		d	Solid Length	F max.	N{kgf}max.	Unit Price
TypeD-L		d	Solid Length	F max.	N{kgf}max.	Unit Price
UF 2-	5*	0.2	2.35	2.25	0.66 {0.068}
	10*	0.2	2.35	4.5	1.3 {0.14}
	15*	0.26	7.8	6.7	2.0 {0.20}
	20*	0.26	7.8	9	2.7 {0.27}
	25*	0.29	13.6	11.2	3.3 {0.34}
	30*	0.29	13.6	13.5	4.0 {0.41}
UF 3-	5*	0.26	1.8	2.25	1.1{0.11}
	10*	0.32	4.5	4.5	2.2{0.22}
	15*	0.32	4.5	6.7	3.2{0.33}
	20*	0.35	6.3	9	4.4{0.45}
	25*	0.35	6.3	11.2	5.5{0.56}
	30*	0.4	12.4	13.5	6.6{0.67}
	35*	0.4	12.4	15.7	7.6{0.78}
	40*	0.4	12.4	18	8.8{0.9}
UF 4-	5*	0.32	2	2.25	1.1{0.11}
	10*	0.35	3	4.5	2.2{0.22}
	15*	0.4	5.2	6.7	3.2{0.33}
	20*	0.4	5.2	9	4.4{0.45}
	25*	0.45	9.5	11.2	5.5{0.56}
	30*	0.45	9.5	13.5	6.6{0.67}
	35*	0.5	15.5	15.7	7.6{0.78}
	40*	0.5	15.5	18	8.8{0.9}
	45*	0.5	15.5	20	9.8{1}
	50*	0.5	15.5	22.5	10.8{1.1}
	60*	0.55	22.6	27	12.7{1.3}
UF 5-	5*	0.35	2.01	2.25	1.1{0.11}
	10*	0.4	3.2	4.5	2.2{0.23}
	15*	0.4	3.2	6.75	3.3{0.34}
	20*	0.45	4.95	9	4.4{0.45}
	25*	0.45	4.95	11.25	5.5{0.56}
	30*	0.5	7.75	13.5	6.7{0.68}
	35*	0.5	7.75	15.75	7.7{0.79}
	40	0.6	19.5	18	8.8{0.9}
	45	0.6	19.5	20.25	10{1.01}
	50	0.6	19.5	22.5	11.2{1.13}
	60	0.65	27.95	27	13.4{1.35}
UF 6-	5*	0.4	2.2	2.25	1.1{0.11}
	10*	0.5	5	4.5	2.2{0.22}
	15*	0.55	7.7	6.7	3.2{0.33}
	20*	0.55	7.7	9	4.4{0.45}
	25	0.6	10.8	11.2	5.5{0.56}
	30	0.65	15.6	13.5	6.6{0.67}
	35	0.65	15.6	15.7	7.6{0.78}
	40	0.65	15.6	18	8.8{0.9}
	45	0.65	15.6	20	9.8{1}
	50	0.7	23.1	22.5	10.8{1.1}
	60	0.7	23.1	27	12.7{1.3}
	70	0.75	30.8	31.5	14.7{1.5}
UF 8-	10	0.6	5.4	4.5	2.2{0.22}
	15	0.65	7.2	6.7	3.2{0.33}
	20	0.7	10.5	9	4.4{0.45}
	25	0.7	10.5	11.2	5.5{0.56}
	30	0.75	13.5	13.5	6.6{0.67}
	35	0.75	13.5	15.7	7.6{0.78}
	40	0.8	18.4	18	8.8{0.9}
	45	0.8	18.4	20	9.8{1}
	50	0.8	18.4	22.5	10.8{1.1}
	60	0.85	26.4	27	12.7{1.3}
	70	0.85	26.4	31.5	14.7{1.5}
	80	0.85	26.4	36	17.7{1.8}
UF10-	10	0.65	4.6	4.5	2.2{0.22}
	15	0.65	4.6	6.7	3.2{0.33}
	20	0.8	9.6	9	4.4{0.45}
	25	0.8	9.6	11.2	5.5{0.56}
	30	0.85	12.8	13.5	6.6{0.67}
	35	0.85	12.8	15.7	7.6{0.78}
	40	0.9	17	18	8.8{0.9}
	45	0.9	17	20	9.8{1}
	50	0.9	17	22.5	10.8{1.1}
	60	1.0	28	27	12.7{1.3}
	70	1.0	28	31.5	14.7{1.5}
	80	1.0	28	36	17.7{1.8}
UF12-	15	0.8	6.8	6.7	3.2{0.33}
	20	0.8	6.8	9	4.4{0.45}
	25	0.8	6.8	11.2	5.5{0.56}
	30	0.9	10.8	13.5	6.6{0.67}
	35	1.0	17	15.7	7.6{0.78}
	40	1.0	17	18	8.8{0.9}
	45	1.0	17	20	9.8{1}
	50	1.1	26.4	22.5	10.8{1.1}
	60	1.1	26.4	27	12.7{1.3}
	70	1.1	26.4	31.5	14.7{1.5}
	80	1.2	39.6	36	17.7{1.8}
UF13-	15	0.8	5.6	6.7	3.2{0.33}
	20	0.8	5.6	9	4.4{0.45}
	25	0.85	7.2	11.2	5.5{0.56}
	30	1.0	14	13.5	6.6{0.67}
	35	1.0	14	15.7	7.6{0.78}
	40	1.0	14	18	8.8{0.9}
	45	1.1	21.5	20	9.8{1}
	50	1.1	21.5	22.5	10.8{1.1}
	60	1.1	21.5	27	12.7{1.3}
	70	1.2	30	31.5	14.7{1.5}
	80	1.2	30	36	17.7{1.8}
UF16-	15	0.9	5.6	6.7	3.2{0.33}
	20	1.0	7.7	9	4.4{0.45}
	25	1.0	7.7	11.2	5.5{0.56}
	30	1.1	12.1	13.5	6.6{0.67}
	35	1.1	12.1	15.7	7.6{0.78}
	40	1.2	18	18	8.8{0.9}
	45	1.2	18	20	9.8{1}
	50	1.2	18	22.5	10.8{1.1}
	60	1.3	26	27	12.7{1.3}
	70	1.3	26	31.5	14.7{1.5}
	80	1.4	35	36	17.7{1.8}
UF20-	20	1.2	7.2	9	8.8{0.9}
	25	1.3	9.1	11.25	11.1{1.13}
	30	1.4	11.9	13.5	13.2{1.35}
	35	1.4	11.9	15.75	15.5{1.58}
	40	1.5	15.8	18	17.7{1.8}
	45	1.5	15.8	20.25	19.9{2.03}
	50	1.6	20.8	22.5	22.1{2.25}
	60	1.6	20.8	27	26.5{2.7}
	70	1.7	26.4	31.5	30.9{3.15}
	80	1.7	26.4	36	35.3{3.6}

kgf (Load)=N/mm (Spring Constant) x0.101972xF (Deflection)
{kgf}=Nx0.101972
[ ! ]Both ends of * marked UF 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

■ Spring Constant
[ ! ]D12 is applicable to UY, UR, UF, UL and UBB Types only. D14 is applicable to UBB Type only.

Type

UTT

UBB

0.05{0.005}

0.2{0.02}

0.3{0.03}

0.5{0.05}

N/mm
0.05
{kgf/mm}{0.005}

N/mm
0.098
{kgf/mm}{0.01}

N/mm
0.29
{kgf/mm}
{0.03}

N/mm
0.49
{kgf/mm}
{0.05}

N/mm
0.98
{kgf/mm}
{0.1}

1.5{0.15}

2.0
{0.2}

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}

0.3{0.03}

0.5{0.05}

0.98{0.1}

2.9{0.3}

3.9{0.4}

4.9{0.5}

14.7{1.5}

29.4{3.0}

Fmax.

F=Lx70%

F=Lx75%

F=Lx60%

F=Lx45%

F=Lx40%

F=Lx35%

F=Lx30%

F=Lx25%

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 60; 90

Part Number
UY4-20

Part Number	Price	Name	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Free Length L (mm)	Outer Dia. D (or D1) (Ø)	Height with the max. load applied ([Free Length] – [Allowable Deflection]) (mm)	Spring Constant (N/mm)	Allowable Load (Configurable Range) (N)	Max. Load (N)	Wire Dia. (Ø)	End Surface Status	Solid Length (mm)	Allowable Deflection (mm)
	฿ 72.80	SPRING	1 Piece(s)	Available	Same day	10	20	4	5	0.098	~1.50	1.47	0.29	Without Grinding	4.64	15

Product TOP

Please check the type/dimensions/specifications of the part UY4-20 in the Round Wire Coil Springs/Deflection 45%/O.D. Referenced series.

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

Products with similar specification

Part Number
UF10-25
UF10-30
UF10-35
UY4-25
UY4-30
UY4-5

Price	Minimum Order Qty	Volume Discount	Days to Ship	RoHS	Free Length L (mm)	Outer Dia. D (or D1) (Ø)	Height with the max. load applied ([Free Length] – [Allowable Deflection]) (mm)	Spring Constant (N/mm)	Allowable Load (Configurable Range) (N)	Max. Load (N)	Wire Dia. (Ø)	End Surface Status	Solid Length (mm)	Allowable Deflection (mm)
฿ 86.45	1 Piece(s)	Available	3 Day(s)	10	25	10	13.8	0.49	4.51~8.50	5.5	0.8	With Grinding	9.6	11.2
฿ 86.45	1 Piece(s)	Available	Same day	10	30	10	16.5	0.49	4.51~8.50	6.6	0.85	With Grinding	12.8	13.5
฿ 86.45	1 Piece(s)	Available	Same day	10	35	10	19.3	0.49	4.51~8.50	7.6	0.85	With Grinding	12.8	15.7
฿ 68.25	1 Piece(s)		Same day	10	25	4	6.25	0.098	1.51~4.50	1.84	0.3	Without Grinding	5.4	18.75
฿ 72.80	1 Piece(s)		Same day	10	30	4	7.5	0.098	1.51~4.50	2.26	0.3	Without Grinding	5.4	22.5
฿ 72.80	1 Piece(s)		Same day	10	5	4	1.25	0.098	~1.50	0.37	0.2	Without Grinding	1.05	3.75