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Torsion Springs（I.D. ID：Ø12）

Torsion springs are a type of wire spring. They are springs that receive a twisting moment around the coil. The shape of torsion spring ends is determined by the mounting location and method, enabling selection of 90-, 135- or 180-degree arm angles. Unlike compression springs and tension springs, torsion springs can reduce the design space and labor. Torsion springs can be classified primarily into close-wound and pitch-wound types. When selecting a torsion spring, it's important to carefully check the free length, average coil diameter and spring constant to select the right model for the usage environment or application. But when selecting models, note that different manufacturers define free length differently.

3 items

: 30; 45; 60

Days to Ship	All Same day 8 Days or Less 9 Days or Less 10 Days or Less 13 Days or Less 15 Days or Less 16 Days or Less 20 Days or Less 44 Days or Less

Recommendation
Torsion Spring

Samini

324 types for both right- and left-handed windings. Torsion springs with an internal diameter of 3 to 18.
[Features]
· The same internal diameter can be selected with multiple wire diameters, so different strengths can be confirmed.
· Springs that use torsional moment (torque) around the coil axis.
[Applications]
· Lids for household mailboxes, etc.
· Can also be used for clips, etc.

Volume Discount

CAD ：

3D
Days to Ship: 8 Days or more
Double Torsion Spring

Samini

· Consists of two torsion springs combined.
· Produces double the torque at the same twist angle when compared with conventional torsion coil springs.

Volume Discount
Days to Ship: 9 Days or more
Torsion Coil Spring【2 Pieces Per Package】

Showa

We have standardized this torsion coil spring to help customers with spring design or calculation issues.

[Features]
- Made of stainless steel wire (φ 0.3 mm to φ 2.0 mm in diameter) with cold-molding for general use.
- JISG4313 (stainless steel wire for spring) type B, SUS304WP-B.
- * Features corrosion and heat resistance (to about 250 °C).
- 350 °C to 400 °C low temperature annealing (no surface treatment).

Volume Discount
Days to Ship: 8 Days or more

Days to Ship:	8 Days or more

Days to Ship:	9 Days or more

Days to Ship:	8 Days or more


Brand
Product Series
CAD
Days to Ship
Custom Angle θ
Material
I.D. ID
Helix Angle φd2(deg)
Wire Dia. d(Ø)
Number of Winding n
Spring Constant k(N･mm/deg)

	Recommendation
Brand	Samini	Samini	Showa
Product Series	Torsion Spring	Double Torsion Spring	Torsion Coil Spring【2 Pieces Per Package】
CAD	3D
Days to Ship	8 Days or more	9 Days or more	8 Days or more
Custom Angle θ	90° Right Winding Coil / 135°Right Winding Coil / 180°Right Winding Coil	90° Right Winding Coil / 135° Right Winding Coil	90° Right Winding Coil / 135°Right Winding Coil / 180°Right Winding Coil
Material	Stainless Steel	Stainless Steel	Stainless Steel
I.D. ID	Ø12	Ø12	Ø12
Helix Angle φd2(deg)	31 ～ 125	41 ～ 66	50 ～ 107
Wire Dia. d(Ø)	1.2 ～ 1.8	2	1.2 ～ 1.8
Number of Winding n	2 / 3 / 5	3 / 4 / 5	4 / 5
Spring Constant k(N･mm/deg)	1.52 ～ 19.3	22.6 ～ 35.6	-

Configure

Specification/Dimensions

Custom Angle θ
- 90° Right Winding Coil
- 135°Right Winding Coil
- 180°Right Winding Coil
- 90° Left Winding Coil
- 135° Left Winding Coil
- 180° Left Winding Coil
- 90° Right Winding Coil
- 135° Right Winding Coil
Images

Clear

Material
- Stainless Steel
- Steel
Clear

I.D. ID
Ø2

Ø3

Ø4

Ø5

Ø5.5

Ø6

Ø7

Ø8

Ø9

Ø10

Ø12

Ø14

Ø16

Ø18
Drawing

Clear

Metric / Inch
- metric
Clear

Helix Angle φd2(deg)
23

24

25

26

27

28

29

30

31

32

33

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

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

104

106

107

108

110

111

114

116

119

122

125

128

131

134

137

140

144
Drawing

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Wire Dia. d(Ø)
0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.2

1.4

1.5

1.6

1.8

2

2.3

2.6

2.9
Drawing

Clear

Number of Winding n
- 2
- 3
- 4
- 5
Drawing

Clear

Spring Constant k(N･mm/deg)
0.0088

0.0090

0.0093

0.0115

0.0119

0.0124

0.024

0.025

0.0289

0.0295

0.0302

0.0304

0.0314

0.0345

0.0354

0.0363

0.038

0.0387

0.04

0.0403

0.042

0.0428

0.0441

0.0455

0.055

0.056

0.0563

0.058

0.0586

0.059

0.0611

0.0617

0.062

0.0630

0.0643

0.07

0.0722

0.073

0.0736

0.0744

0.075

0.0755

0.076

0.0774

0.0882

0.09

0.091

0.0912

0.0918

0.0920

0.094

0.0955

0.0970

0.098

0.0996

0.1054

0.1080

0.11

0.1108

0.112

0.1138

0.115

0.1161

0.118

0.1185

0.1199

0.122

0.1248

0.127

0.1301

0.131

0.1357

0.1368

0.137

0.139

0.1409

0.141

0.1425

0.1454

0.1471

0.148

0.1501

0.1533

0.1680

0.17

0.173

0.1732

0.1756

0.177

0.1787

0.1793

0.1799

0.18

0.181

0.184

0.1845

0.1866

0.1894

0.190

0.191

0.192

0.1933

0.194

0.1944

0.1974

0.199

0.217

0.2206

0.224

0.225

0.2259

0.229

0.2296

0.2314

0.2315

0.235

0.2363

0.2373

0.2394

0.2413

0.2436

0.2512

0.256

0.271

0.272

0.2763

0.279

0.2797

0.2831

0.286

0.288

0.2883

0.29

0.2903

0.2974

0.301

0.302

0.306

0.309

0.3099

0.313

0.316

0.319

0.3224

0.332

0.3360

0.352

0.361

0.3672

0.376

0.3821

0.391

0.3983

0.403

0.426

0.440

0.443

0.45

0.453

0.457

0.461

0.469

0.472

0.476

0.487

0.4939

0.498

0.5041

0.506

0.5147

0.522

0.527

0.552

0.57

0.5811

0.582

0.587

0.5891

0.5931

0.596

0.6037

0.6056

0.611

0.6190

0.635

0.640

0.656

0.672

0.682

0.6936

0.699

0.703

0.7108

0.715

0.716

0.72

0.726

0.7289

0.7299

0.744

0.75

0.7523

0.755

0.7762

0.787

0.791

0.802

0.822

0.843

0.878

0.900

0.922

0.94

0.9590

0.978

0.9981

1.02

1.03

1.04

1.0406

1.05

1.07

1.08

1.10

1.11

1.12

1.13

1.15

1.1765

1.18

1.19

1.2008

1.2262

1.30

1.35

1.36

1.38

1.40

1.4045

1.41

1.42

1.4394

1.44

1.45

1.4760

1.48

1.49

1.52

1.53

1.54

1.56

1.58

1.59

1.592

1.68

1.686

1.73

1.79

1.80

1.87

1.88

1.96

1.98

2.01

2.03

2.05

2.06

2.11

2.17

2.18

2.23

2.29

2.31

2.32

2.41

2.42

2.44

2.45

2.47

2.51

2.53

2.55

2.57

2.65

2.66

2.93

3.17

3.22

3.26

3.30

3.34

3.41

3.42

3.44

3.51

3.52

3.54

3.57

3.60

3.62

3.66

3.69

3.75

3.78

3.81

3.89

3.95

3.98

4.05

4.11

4.22

4.28

4.46

4.58

4.63

4.66

4.77

4.85

4.89

5.08

5.12

5.16

5.25

5.26

5.38

5.46

5.47

5.54

5.59

5.62

5.70

5.72

5.73

5.77

5.81

5.95

6.00

6.04

6.25

6.30

6.33

6.41

6.42

6.44

6.58

6.74

7.03

7.35

7.52

7.53

7.60

7.72

7.82

8.04

8.15

8.28

8.33

8.39

8.55

8.59

8.61

8.80

8.82

8.89

8.96

9.02

9.17

9.37

9.44

9.55

9.66

9.90

10.2

10.4

10.8

10.9

11.2

11.5

11.8

11.9

12.0

12.2

12.4

12.7

12.9

13.3

13.5

13.6

13.9

14.0

14.3

14.4

15.0

15.6

15.9

16.2

16.9

17.2

17.6

18.2

19.3

20.0

21.2

21.5

22.4

22.5

22.6

23.3

23.7

23.9

24.3

24.9

25.4

27.2

28.1

31.1

32.7

32.9

33.5

34.0

34.3

35.0

35.6

38.3

39.9

41.5

52.8

53.6

54.9

55.4

57.2

58.6

62.3

76.3

80.8

85.8
Clear