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Scheduled Maintenance Notice: This site will be unavailable due to scheduled maintenance from 9:00 24/11/2024 to 7:00 (SGT) 25/11/2024. We apologize for the inconvenience.
Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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Disc Springs（Inner Dia. d：20(17)）

Disc springs are donut-shaped parts used when fastening bolts or nuts. Disc springs are often used as washers, which are called disc spring washers. The disc part around the hole is sloped to make a gentle conical shape. The conical shape is crushed when the bolt is tightened, and action is generated whereby the disc tries to return to its original shape. The objective of the disc spring is to use this action to prevent loosening after the bolt is tightened. These parts are used in fields such as machine tools, press machines and hinges. They are made from materials such as spring steel and stainless steel. Select according to properties such as rust resistance, abrasion resistance or impact resistance. Types are also available that are suitable for light loads or heavy loads.

1 items

: 30; 45; 60

Days to Ship	All Same day 4 Day(s) or Less 5 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less 11 Day(s) or Less 12 Day(s) or Less 14 Day(s) or Less 22 Day(s) or Less 27 Day(s) or Less

Disc Spring BD (Iwata Standard)

IWATA DENKO

[Features]
· A spring for applying pressure. Eliminates bearing vibration and noise while also damping irregular rotations.
· Helps to increase bearing life and markedly simplify design and space.

Standard Price:	SGD 3.01
Days to Ship:	7 Day(s) or more


Brand
Product Series
Days to Ship
Outer Dia. D(Ø)
Inner Dia. d(Ø)
Applied Load
Load P3 (at 0.75h)(N)
Material
Plate Thickness t(mm)
Free Height Ho(mm)
Load P1 (at 0.25h)(N)
Total Deflection h(mm)
Deflection δ
Load P1 (at 0.50h)(N)


Brand	IWATA DENKO
Product Series	Disc Spring BD (Iwata Standard)
Days to Ship	7 Day(s) or more
Outer Dia. D(Ø)	47
Inner Dia. d(Ø)	20(17)
Applied Load	For Light Load
Load P3 (at 0.75h)(N)	-
Material	Spring Steel
Plate Thickness t(mm)	0.6
Free Height Ho(mm)	1.5
Load P1 (at 0.25h)(N)	-
Total Deflection h(mm)	0.9
Deflection δ	-
Load P1 (at 0.50h)(N)	-

Configure

Specification/Dimensions

Outer Dia. D(Ø)
6

8

10

11.0

12

12.5

13

13.5

14

16

16.5

18

19

20

21.0

22

22.5

24

25

26

28

30

31.0

31.5

32

34

35

35.5

37

40

42

45

47

50

52

53.0

56

60

62

63

70

71

80

85

90

91

100

110

112

120

125

130

135

140

150

160

170

180

190

200

250

565
Drawing

Clear

Inner Dia. d(Ø)
3

3.2

4

4.2

5(4)

5.2

6(5)

6.2

7

7.2

8(7)

8.2

9

9.2

10

10.2

11.2

12

12.2

12.3

14.2

14.3

15

16.3

17

18.3

20(17)

20.4

22.4

24.4

25(20)

25.4

25.5

28.4

28.5

30(25)

31

35

36

40

41

45

46

50

51

55

57

60

61

64

65

66

71

72

75

77

80

82

90

92

95

102

105

110

127
Drawing

Clear

Applied Load
- For Heavy Load
- For Light Load
Clear

Load P3 (at 0.75h)(N)
1,109

1,180

1,315

1,322

1,380

1,476

1,590

1,600

1,664

1,681

1,810

1,870

2,278

2,474

2,542

3,174

3,290

3,370

3,680

3,770

4,130

4,146

4,490

4,522

5,110

5,460

5,657

6,410

6,697

8,040

10,409

13,400

61

102

107.8

133

136

179

186.2

205.9

209.86

232

234

239

245

256

264.6

274

282

294

294.2

316

323.6

333

358

360

372.4

373

411.9

459

495

509.6

568.8

572

588

614

630

637

648

657.1

666.4

691

715.4

749.23

751

766

769

774.2

794.3

812

896

921

929

931

981

1019.2

1020

1029.7

1040

1120

1127.8

1140

1146.6

1180

1274.9

1340

1372

1380

1520

1528.8

1550

1590

1720

1724.8

1734.6

1810

1870

1912.3

1931.9

1950

2352

2557.8

2626.4

2843.9

2922.4

3060

3157.74

3283

3290

3488.8

3680

3690

3770

3873.6

4018

4130

4282.6

4490

4540

4674.6

4730

5110

5197.5

5460

5850.6

6000

6046.6

6487.6

6501.8

6928.6

7160

7260

7610

7680

7698.2

8040

9437.4

10231.2

11300

11376

12003.34

12500

12700

12700.8

13494.6

13900

15200

16500

18482.8

18600

20545

22600

28253.4

30213.4

32800

33588

34500

34800

36300

37500

39356.8

39800

39900

42100

43178.8

43500

43757

43800

43900

47600

48100

51500

53300

55000

56400

76763.4

77322

81900

85975

93300

94700

96000

96900

111000

112984.2

117000

138000

154000

203000

229000

274000
Clear

Material
- S65~70C (Black Oxide)
- SUS304-CSP
- SUP-10
- Spring Steel
- Special Steel
Clear

Plate Thickness t(mm)
0.2

0.25

0.3

0.35

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1.25

1.5

1.6

1.75

1.8

2

2.10

2.25

2.5

3

3.5

4

5

5.5

6

8

9

10

12

14
Drawing

Clear

Free Height Ho(mm)
0.4

0.45

0.5

0.55

0.6

0.65

0.7

0.75

0.80

0.85

0.9

0.95

1

1.05

1.1

1.2

1.25

1.3

1.35

1.4

1.45

1.5

1.55

1.6

1.7

1.75

1.8

1.85

1.87

1.88

1.95

2.05

2.1

2.15

2.2

2.25

2.3

2.45

2.5

2.6

2.65

2.7

2.75

2.8

3.05

3.1

3.15

3.2

3.25

3.3

3.4

3.5

3.6

3.70

3.8

4.1

4.2

4.25

4.3

4.41

4.5

4.65

4.9

5.1

5.3

5.6

6

6.3

6.7

7

7.2

7.75

8.2

8.5

8.6

8.9

9

9.3

9.4

9.6

10

10.3

10.4

10.5

10.6

10.8

11.1

11.2

11.5

12

12.2

12.8

13.5

13.6

13.8

14

16.2

19

19.6
Drawing

Clear

Load P1 (at 0.25h)(N)
29.1

55

55.7

87.5

88.26

101

120.62

128

136

141

145

161

188

266

291

304.99

326

337

342

402

409

415

496

507

511

593

603

692

698

750

771

894

1300

1304.28

1360

1370

1520

1640

1730

1960

2030

2090

2320

2400

2890

3080

3160

3540

3870

4265.89

4610

4790

4800

4820

5920

5980

6290

6390

8130

9580

12400

13300

15600

16200

16500

17500

17600

18300

18500

18900

21400

21600

22100

22300

33200

33500

33700

34800

41300

42000

49600

53900

54800

71700

89900
Clear

Total Deflection h(mm)
0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

0.55

0.6

0.65

0.68

0.7

0.75

0.8

0.9

0.97

1

1.1

1.15

1.20

1.3

1.4

1.45

1.5

1.55

1.6

1.65

1.7

1.75

1.95

2

2.2

2.3

2.4

2.41

2.5

2.6

2.75

2.8

3.2

3.3

3.4

3.5

3.6

4

4.2

4.5

4.6

4.8

5.1

5.3

5.5

5.6

6.8

7.3
Drawing

Clear

Deflection δ
- 0.75h (mm)
Clear

Load P1 (at 0.50h)(N)
48.4

103

155.93

164

170

215.75

230

238

252

258

280

345

459

522

547.21

582

605

620

690

749

797

844

886

948

952

1120

1210

1280

1340

1390

1430

2324.18

2440

2460

2540

2560

2640

3030

3070

3550

3740

3770

3820

4230

5380

5540

5660

5820

6240

8237.59

8380

8660

9060

9110

10300

10500

11200

11400

15300

15600

23800

24800

25600

26400

27300

30200

30300

30900

31900

32500

33100

35800

36500

38700

39400

39900

60100

64300

65400

65500

65900

78300

79800

90500

95200

105000

139000

164000
Clear

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Disc Springs（Inner Dia. d：20(17)）

Configure

Specification/Dimensions

Outer Dia. D(Ø)

Inner Dia. d(Ø)

Applied Load

Load P3 (at 0.75h)(N)

Material

Plate Thickness t(mm)

Free Height Ho(mm)

Load P1 (at 0.25h)(N)

Total Deflection h(mm)

Deflection δ

Load P1 (at 0.50h)(N)

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