Torsion Springs

Volume Discount

MISUMI

[Features] Arm angles of 90°/135°/180° are available for right-hand and left-hand winding.

Order quantities extended (D-JIT)

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Part Numbers
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Technical Information

Material EN 1.4301 (WPB) Equiv.

Specifications

Part Number	-	n	-	d
UA90R4	-	3	-	0.5

Part Number

Number of Winding
n

Wire Dia.
d

Arm Length
L/R

Spring Constant (Torque) N • mm/deg

Max. Angle Used Deg (deg)

Unit Price

Type

I.D.
D

Arm Angle 90°

Arm Angle 135°

Arm Angle 180°

Arm Angle 90°

Arm Angle 135°

Arm Angle 180°

Arm Angle 90°
UA90R (Right Winding)
UA90L (Left Winding)

Arm Angle 135°
UA135R (Right Winding)
UA135L (Left Winding)

Arm Angle 180°
UA180R (Right Winding)
UA180L (Left Winding)

Spring constant is a
reference value when arm
length is cut to be L/2, R/2.

1N=0.101972kgf
1 deg =1°(Angle)

0.2

0.0115

0.0119

0.0124

0.3

0.0563

0.0586

0.0611

0.2

0.0088

0.0090

0.0093

0.3

0.0428

0.0441

0.0455

0.3

0.0345

0.0354

0.0363

0.4

0.1054

0.1080

0.1108

0.3

0.0289

0.0295

0.0302

0.4

0.0882

0.0900

0.0920

0.3

0.0387

0.0403

0.0420

0.4

0.1199

0.1248

0.1301

0.3

0.0295

0.0304

0.0314

0.4

0.0912

0.0940

0.0970

0.4

0.0736

0.0755

0.0774

0.5

0.1756

0.1799

0.1845

0.4

0.0617

0.0630

0.0643

0.5

0.1471

0.1501

0.1533

0.4

0.0918

0.0955

0.0996

0.5

0.2206

0.2296

0.2394

0.4

0.0700

0.0722

0.0744

0.5

0.1680

0.1732

0.1787

0.5

0.1357

0.1390

0.1425

0.6

0.2763

0.2831

0.2903

0.5

0.1138

0.1161

0.1185

0.6

0.2315

0.2363

0.2413

0.5

0.1793

0.1866

0.1944

0.6

0.3672

0.3821

0.3983

0.5

0.1368

0.1409

0.1454

0.6

0.2797

0.2883

0.2974

0.6

0.2259

0.2314

0.2373

0.8

0.6936

0.7108

0.7289

0.6

0.1894

0.1933

0.1974

0.8

0.5811

0.5931

0.6056

0.6

0.3099

0.3224

0.3360

0.8

0.9590

0.9981

1.0406

0.6

0.2363

0.2436

0.2512

0.8

0.7299

0.7523

0.7762

0.8

0.5891

0.6037

0.6190

1.0

1.4045

1.4394

1.4760

0.8

0.4939

0.5041

0.5147

1.0

1.1765

1.2008

1.2262

Alterations

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Part Number
UA90L2-2-0.2
UA90L2-2-0.3
UA90L2-3-0.2
UA90L2-3-0.3
UA90L2-4-0.3
UA90L2-4-0.4
UA90L2-5-0.3
UA90L2-5-0.4
UA90L3-2-0.3
UA90L3-2-0.4
UA90L3-3-0.3
UA90L3-3-0.4
UA90L3-4-0.4
UA90L3-4-0.5
UA90L3-5-0.4
UA90L3-5-0.5
UA90L4-2-0.4
UA90L4-2-0.5
UA90L4-3-0.4
UA90L4-3-0.5
UA90L4-4-0.5
UA90L4-4-0.6
UA90L4-5-0.5
UA90L4-5-0.6
UA90L5-2-0.5
UA90L5-2-0.6
UA90L5-3-0.5
UA90L5-3-0.6
UA90L5-4-0.6
UA90L5-4-0.8
UA90L5-5-0.6
UA90L5-5-0.8
UA90L6-2-0.6
UA90L6-2-0.8
UA90L6-3-0.6
UA90L6-3-0.8
UA90L6-4-0.8
UA90L6-4-1.0
UA90L6-5-0.8
UA90L6-5-1.0
UA90R2-2-0.2
UA90R2-2-0.3
UA90R2-3-0.2
UA90R2-3-0.3
UA90R2-4-0.3
UA90R2-4-0.4
UA90R2-5-0.3
UA90R2-5-0.4
UA90R3-2-0.3
UA90R3-2-0.4
UA90R3-3-0.3
UA90R3-3-0.4
UA90R3-4-0.4
UA90R3-4-0.5
UA90R3-5-0.4
UA90R3-5-0.5
UA90R4-2-0.4
UA90R4-2-0.5
UA90R4-3-0.4
UA90R4-3-0.5

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Arm Angle	Inner diameter D	Max. Angle Used (deg)	Wire Dia. d (Ø)	Number of Winding	Spring Constant (N･mm/deg)
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	2	41	0.2	2	0.0115
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	2	26	0.3	2	0.0563
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	2	59	0.2	3	0.0088
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	2	38	0.3	3	0.0428
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	2	52	0.3	4	0.0345
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	2	38	0.4	4	0.1054
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	2	61	0.3	5	0.0289
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	2	46	0.4	5	0.0882
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	3	40	0.3	2	0.0387
7.56 €	1	Available	12 Days	10	Arm Angle 90° (Left Winding)	3	30	0.4	2	0.1199
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	3	56	0.3	3	0.0295
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	3	42	0.4	3	0.0912
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	3	55	0.4	4	0.0736
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	3	44	0.5	4	0.1756
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	3	71	0.4	5	0.0617
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	3	54	0.5	5	0.1471
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	4	39	0.4	2	0.0918
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	4	29	0.5	2	0.2206
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	4	56	0.4	3	0.07
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	4	42	0.5	3	0.1680
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	4	57	0.5	4	0.1357
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	4	48	0.6	4	0.2763
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	4	69	0.5	5	0.1138
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	4	60	0.6	5	0.2315
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	5	39	0.5	2	0.1793
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	5	31	0.6	2	0.3672
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	5	55	0.5	3	0.1368
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	5	47	0.6	3	0.2797
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	5	60	0.6	4	0.2259
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	5	42	0.8	4	0.6936
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	5	75	0.6	5	0.1894
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	5	54	0.8	5	0.5811
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	6	37	0.6	2	0.3099
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	6	26	0.8	2	0.9590
9.45 €	1	Available	16 Days	-	Arm Angle 90° (Left Winding)	6	56	0.6	3	0.2363
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	6	38	0.8	3	0.7299
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	6	50	0.8	4	0.5891
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	6	42	1	4	1.4045
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	6	63	0.8	5	0.4939
9.45 €	1	Available	5 Days	10	Arm Angle 90° (Left Winding)	6	51	1	5	1.1765
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	2	41	0.2	2	0.0115
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	2	26	0.3	2	0.0563
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	2	59	0.2	3	0.0088
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	2	38	0.3	3	0.0428
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	2	52	0.3	4	0.0345
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	2	38	0.4	4	0.1054
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	2	61	0.3	5	0.0289
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	2	46	0.4	5	0.0882
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	3	40	0.3	2	0.0387
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	3	30	0.4	2	0.1199
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	3	56	0.3	3	0.0295
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	3	42	0.4	3	0.0912
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	3	55	0.4	4	0.0736
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	3	44	0.5	4	0.1756
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	3	71	0.4	5	0.0617
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	3	54	0.5	5	0.1471
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	4	39	0.4	2	0.0918
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	4	29	0.5	2	0.2206
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	4	56	0.4	3	0.07
7.56 €	1	Available	5 Days	10	Arm Angle 90° (Right Winding)	4	42	0.5	3	0.1680

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Basic information

Material	EN 1.4301 (WPB) Equiv.

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Basic Attributes

Arm Angle
- Arm Angle 90° (Right Winding)
- Arm Angle 135° (Right Winding)
- Arm Angle 180° (Right Winding)
- Arm Angle 90° (Left Winding)
- Arm Angle 135° (Left Winding)
- Arm Angle 180° (Left Winding)
Clear
Inner diameter D
2

3

4

5

6
Clear
Max. Angle Used(deg)
23

24

25

26

27

28

29

30

31

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

63

65

66

67

68

69

71

73

75
Clear
Wire Dia. d(Ø)
0.2

0.3

0.4

0.5

0.6

0.8

1
Clear
Number of Winding
- 2
- 3
- 4
- 5
Clear
Spring Constant(N･mm/deg)
0.0088

0.0090

0.0093

0.0115

0.0119

0.0124

0.0289

0.0295

0.0302

0.0304

0.0314

0.0345

0.0354

0.0363

0.0387

0.0403

0.042

0.0428

0.0441

0.0455

0.0563

0.0586

0.0611

0.0617

0.0630

0.0643

0.07

0.0722

0.0736

0.0744

0.0755

0.0774

0.0882

0.09

0.0912

0.0918

0.0920

0.094

0.0955

0.0970

0.0996

0.1054

0.1080

0.1108

0.1138

0.1161

0.1185

0.1199

0.1248

0.1301

0.1357

0.1368

0.139

0.1409

0.1425

0.1454

0.1471

0.1501

0.1533

0.1680

0.1732

0.1756

0.1787

0.1793

0.1799

0.1845

0.1866

0.1894

0.1933

0.1944

0.1974

0.2206

0.2259

0.2296

0.2314

0.2315

0.2363

0.2373

0.2394

0.2413

0.2436

0.2512

0.2763

0.2797

0.2831

0.2883

0.2903

0.2974

0.3099

0.3224

0.3360

0.3672

0.3821

0.3983

0.4939

0.5041

0.5147

0.5811

0.5891

0.5931

0.6037

0.6056

0.6190

0.6936

0.7108

0.7289

0.7299

0.7523

0.7762

0.9590

0.9981

1.0406

1.1765

1.2008

1.2262

1.4045

1.4394

1.4760
Clear
Type
- UA135L
- UA135R
- UA180L
- UA180R
- UA90L
- UA90R
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