Conical disc springs of series A (with De/T ≈ 18: h_o/t≈0.4,E=206000 N/mm², and μ = 0.3)　

Group

De

h12

Di

H12

t or (t')

h_o

l_o

F

N

S

l_o- s

α_om

N/mm²

αⅡ
αⅢ

N/mm²

1

8

4.2

0.4

0.2

0.6

210

0.15

0.45

-1200

1220

10

5.2

0.5

0.25

0.75

329

0.19

0.56

-1210

1240

12.5

6.2

0.7

0.3

1

673

0.23

0.77

-1280

1420

14

7.2

0.8

0.3

1.1

813

0.23

0.87

-1190

1340

16

8.2

0.9

0.35

1.25

1000

0.26

0.99

-1160

1290

18

9.2

1

0.4

1.4

1250

0.3

1.1

-1170

1300

20

10.2

1.1

0.45

1.55

1530

0.34

1.21

-1180

1300

2

22.5

11.2

1.25

0.5

1.75

1950

0.38

1.37

-1170

1320

25

12.2

1.5

0.55

2.05

2910

0.41

1.64

-1210

1410

28

14.2

1.5

0.65

2.15

2850

0.49

1.66

-1180

1280

31.5

16.3

1.75

0.7

2.45

3900

0.53

1.92

-1190

1310

35.5

18.3

2

0.8

2.8

5190

0.6

2.2

-1210

1330

40

20.4

2.25

0.9

3.15

6540

0.68

2.47

-1210

1340

45

22.4

2.5

1

3.5

7720

0.75

2.75

-1150

1300

50

25.4

3

1.1

4.1

12000

0.83

3.27

-1250

1430

56

28.5

3

1.3

4.3

11400

0.98

3.32

-1180

1280

63

31

3.5

1.4

4.9

15000

1.05

3.85

-1140

1300

71

36

4

1.6

5.6

20500

1.2

4.4

-1200

1330

80

41

5

1.7

6.7

33700

1.28

5.42

-1260

1460

90

46

5

2

7

31400

1.5

5.5

-1170

1300

100

51

6

2.2

8.2

48000

1.65

6.55

-1250

1420

112

57

6

2.5

8.5

43800

1.88

6.62

-1130

124O

3

125

64

8 (7.5)

2.6

10.6

85900

1.95

8.65

-1280

1330

140

72

8 (7.5)

3.2

11.2

85300

2.4

8.8

-1260

1280

160

82

10 (9.4)

3.5

13.5

139000

2.63

10.87

-1320

1340

180

92

10 (9.4)

4

14

125000

3

11

-1180

1200

200

102

12 (11.25)

4.2

16.2

183000

3.15

13.05

-1210

1230*

225

112

12 (11.25)

5

17

171000

3.75

13.25

-1120

1140

250

127

14(13.1)

5.6

19.6

249000

4.2

15.4

-1200

1220

Conical disc springs of series B (with De/T ≈ 28: h_o/t≈0.75,E=206000 N/mm², and μ = 0.3)

Group

De

h12

Di

H12

t or (t')

h_o

lo

F

N

S

l_o- s

α_om

N/mm²

αⅡ
αⅢ

N/mm²

1

8

4.2

0.3

0.25

0.55

119

0.19

0.36

-1140

1330

10

5.2

0.4

0.3

0.7

213

0.23

0.47

-1170

1300

12.5

6.2

0.5

0.35

0.85

291

0.26

0.59

-1000

1110

14

7.2

0.5

0.4

0.9

279

0.3

0.6

-970

1100

16

8.2

0.6

0.45

1.05

412

0.34

0.71

-1010

1120

18

9.2

0.7

0.5

1.2

572

0.38

0.82

-1040

1130

20

10.2

0.8

0.55

1.35

745

0.41

0.94

-1030

1110

22.5

11.2

0.8

0.65

1.45

710

0.49

0.96

-962

1080

25

12.2

0.9

0.7

1.6

868

0.53

1.07

-938

1030

28

14.2

1

0.8

1.8

1110

0.6

1.2

-961

1090

2

31.5

16.3

1.25

0.9

2.15

1920

0.68

1.47

-1090

1190

35.5

18.3

1.25

1

2.25

1700

0.75

1.5

-944

1070

40

20.4

1.5

1.15

2.65

2620

0.86

1.79

-1020

1130

45

22.4

1.75

1.3

3.05

3660

0.98

2.07

-1050

1150

50

25.4

2

1.4

3.4

4760

1.05

2.35

-1060

1140

56

28.5

2

1.6

3.6

4440

1.2

2.4

-963

1090

63

31

2.5

1.75

4.25

7180

1.31

2.94

-1020

1090

71

36

2.5

2

4.5

6730

1.5

3

-934

1060

80

41

3

2.3

5.3

10500

1.73

3.57

-1030

1140

90

46

3.5

2.5

6

14200

1.88

4.12

-1030

1120

100

51

3.5

2.8

6.3

13100

2.1

4.2

-926

1050

112

57

4

3.2

7.2

17800

2.4

4.8

-963

1090

125

64

5

3.5

8.5

30000

2.63

5.87

-1060

1150

140

72

5

4

9

27900

3

6

-970

1110

160

82

6

4.5

10.5

41100

3.38

7.12

-1000

1110

180

92

6

5.1

11.1

37500

3.83

7.27

-895

1040

3

200

102

8(7.5)

5.6

13.6

76400

4.2

9.4

-1060

1250

225

112

8(7.5)

6.5

14.5

70800

4.88

9.62

-951

1180

250

127

10(9.4)

7

17

119000

5.25

11.75

-1050

1240

Conical disc springs of series C (with De/T ≈ 40: h_o/t≈1.3,E=206000 N/mm² , and μ = 0.3)

Group

De

h12

Di

H12

t or (t')

h_o

l_o

F

N

S

l_o- s

α_om

N/mm²

αⅡ
αⅢ

N/mm²

1

8

4.2

0.2

0.25

0.45

39

0.19

0.26

-762

1040

10

5.2

0.25

0.3

0.55

58

0.23

0.32

-734

980

12.5

6.2

0.35

0.45

0.8

152

0.34

0.46

-944

1280

14

7.2

0.35

0.45

0.8

123

0.34

0.46

-769

1060

16

8.2

0.4

0.5

0.9

155

0.38

0.52

-751

1020

18

9.2

0.45

0.6

1.05

214

0.45

0.6

-789

1110

20

10.2

0.5

0.65

1.15

254

0.49

0.66

-772

1070

22.5

11.2

0.6

0.8

1.4

425

0.6

0.8

-883

1230

25

12.2

0.7

0.9

1.6

601

0.68

0.92

-936

1270

28

14.2

0.8

1

1.8

801

0.75

1.05

-961

1300

31.5

16.3

0.8

1.05

1.85

687

0.79

1.06

-810

1130

35.5

18.3

0.9

1.15

2.05

831

0.86

1.19

-779

1080

40

20.4

1

1.3

2.3

1020

0.98

1.32

-772

1070

2

45

22.4

1.25

1.6

2.85

1890

1.2

1.65

-920

1250

50

25.4

1.25

1.6

2.85

1550

1.2

1.65

-754

1040

56

28.5

1.5

1.95

3.45

2620

1.46

1.99

-879

1220

63

31

1.8

2.35

4.15

4240

1.76

2.39

-985

1350

71

36

2

2.6

4.6

5140

1.95

2.65

-971

1340

80

41

2.25

2.95

5.2

6610

2.21

2.99

-982

1370

90

46

2.5

3.2

5.7

7680

2.4

3.3

-935

1290

100

51

2.7

3.5

6.2

8610

2.63

3.57

-895

1240

112

57

3

3.9

6.9

10500

2.93

3.97

-882

1220

125

64

3.5

4.5

8

15400

3.38

4.62

-956

1320

140

72

3.8

4.9

8.7

17200

3.68

5.02

-904

1250

160

82

4.3

5.6

9.9

21800

4.2

5.7

-892

1240

180

92

4.8

6.2

11

26400

4.65

6.35

-869

1200

200

102

5.5

7

12.5

36100

5.25

7.25

-910

1250

3

225

112

6.5(6.2)

7.1

13.6

44600

5.33

8.27

-840

1140

250

127

7(6.7)

7.8

14.8

50500

5.85

8.95

-814

1120