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Discontinued Products

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Flexible Shaft Couplings（Body Material：Alloy）

Couplings serve a crucial role in transmission system by connecting two shafts and facilitating the transmission of torque between them. These devices are essential in various applications where precise and reliable power transmission is required. When selecting couplings, it is crucial to consider factors such as Shaft Bore Diameter, Overall Length , Materials (e.g., Stainless Steel, Steel, Aluminum, Plastic and etc.), Features(e.g., Clean Environment, Heat Resistant , High Torque and so on). These considerations are vital for ensuring the production of high-quality products. We highly recommend reputable brands like MISUMI, ADVANCED, COUP-LINE, as well as cost-effective options from MISUMI ECONOMY.
Take advantage of the convenience of FREE SHIPPING and NO MINIMUM ORDER on couplings. If you have any doubts or require assistance in choosing the right product, our experts are readily available to provide.

Type

Slit
Disc
Oldham
Jaw
Bellows
Others
Vibration Damping Rubber Type

6 items

: 30; 45; 60

Oldham Couplings MJ series　

MIGHTY

· Oldham Couplings MJ series
· Oldham Couplings are 3-part couplings consisting of 2 hubs and 1 torque disc.
· 2 hubs materials are Aluminum Alloy and Free-cutting brass.
· 3 methods surface treatment solution for hubs are non-chromium chemical conversion treatment, Anodization and Electroless nickel plating.
· Torque disc materials are Polyacetal, Nylon and PEEK.
· Shaft Fastening Method: Set screw type.
· MJ series size: 6 to 57.
· Allowable Angular misalignment 1 degree.
· All through hole hubs MJ-50 and 57 with keyways standard (JIS B13101-1996)

Standard Price:	SGD 5.85-
Days to Ship:	4 Day(s) or more

MF Coupling Series

NIHON MINIATURE

Low cost coupling that uses zinc die casting for the hub part (boss part), and urethane rubber for the sleeve.

[Features]
· MF coupling consists of one rubber sleeve and two hubs made of zinc die-cast (surface treated).
· Sleeves and hubs have splines on inner and outer diameters, respectively, which engage and transmit torque.
· Fastening to shaft is by set screw.

CAD ：: 2D

Standard Price:	SGD 20.35-
Days to Ship:	4 Day(s) or more

Baumann Mini Flex

MIKI PULLEY

· Mini Flexible Shaft Coupling BAUMANN MINI FLEX ZG/LM model.
· The LM model uses an aluminum alloy as the hub material and stainless steel for the coil spring.
· The ZG model uses a zinc alloy as the hub material and steel wire for the coil spring.
· Hexagon head set screw material for ZG/LM is Alloy steel use surface finishing is black coating.
· Application: Encoder, Stepping Motor.
· Standard bore-drilled products do not have keyways.
· Allows angular deflection up to 14°
· Operating Temperature Range: -40 to 120 °C

CAD ：: 2D

Standard Price:	SGD 31.21-
Days to Ship:	4 Day(s) or more

Sleeved Couplings - Sleeved Set Screw

MISUMI

The torque is conveyed by the serrations engagement on the sleeve. A flexible coupling with a simple structure.

CAD ：

2D / 3D

Days to Ship: 6 Day(s) or more

Days to Ship:	6 Day(s) or more

MSF Flexible Coupling-Serration Type

NABEYA BI-TECH

Simple structure, low-cost.

[Features]
· Transmission of torque by engagement of serrations.
· Simple structure flexible coupling.
· Excellent flexibility.
· Acceptable eccentricity / large deviation angle, with torsional vibration also absorbed.

CAD ：: 2D / 3D

Standard Price:	SGD 16.63-
Days to Ship:	4 Day(s) or more

Bellows coupling series NB type phosphor bronze product

NIHON MINIATURE

Low cost bellows coupling, using phosphor bronze for bellows, and brass for boss part. Nickel plating treatment.

[Features]
· NB series bellows coupling is made with phosphor bronze (PBP3-0), with brass bracket (BsBM) used, both fixed with solder.
· No backlash, low inertia, high torsional rigidity, compact coupling with flexibility.
· Model number is no. 4, with shaft diameter from 2 mm to 10 mm, and always in stock with all shaft diameter combinations (inner diameter tapping processed).

CAD ：: 2D

Standard Price:	SGD 24.74-
Days to Ship:	5 Day(s) or more


Brand
Product Series
CAD
Days to Ship
Type
Shaft Bore Dia. (machined) D1(Ø)
Shaft Bore Dia. (machined) D2(Ø)
Outer Dia. A(Ø)
Overall Length W(mm)
Application
Allowable Torque Range(N•m)
Features
Allowable Misalignment
Max. Rotational Speed Range(r/min)
Body Material
Allowable Torque(N•m)
Allowable Angular Misalignment(deg)
Allowable Lateral Misalignment(mm)
Product Category
Allowable Lateral Misalignment Range(mm)
Max. Rotational Speed(r/min)
Buffer Material
Disc Material
Bellows Material


Brand	MIGHTY	NIHON MINIATURE	MIKI PULLEY	MISUMI	NABEYA BI-TECH	NIHON MINIATURE
Product Series	Oldham Couplings MJ series	MF Coupling Series	Baumann Mini Flex	Sleeved Couplings - Sleeved Set Screw	MSF Flexible Coupling-Serration Type	Bellows coupling series NB type phosphor bronze product
CAD		2D	2D	2D / 3D	2D / 3D	2D
Days to Ship	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	6 Day(s) or more	4 Day(s) or more	5 Day(s) or more
Type	Oldham	Others	Bellows	Oldham	Oldham	Bellows
Shaft Bore Dia. (machined) D1(Ø)	2 ～ 6	3 ～ 18	6	3 ～ 14	3 ～ 15	2 ～ 10
Shaft Bore Dia. (machined) D2(Ø)	2 ～ 6	3 ～ 18	6	3 ～ 14	3 ～ 15	2 ～ 10
Outer Dia. A(Ø)	6.4 ～ 12.7	20 ～ 40	12 ～ 26	16 ～ 32	16 ～ 32	14 ～ 19
Overall Length W(mm)	5.1 ～ 15.9	24 ～ 40	25 ～ 50	27 ～ 48	27 ～ 48	22 ～ 28
Application	Standard / Servo Motor / Stepping Motor / Encoder	Standard	Stepping Motor / Encoder	Standard	Standard	Standard
Allowable Torque Range(N•m)	0.05~1.00	0.05~1.00 ～ 3.01~5.00	0.05~1.00 ～ 1.01~3.00	0.05~1.00 ～ 1.01~3.00	0.05~1.00 ～ 1.01~3.00	0.05~1.00
Features	High Accuracy ～ Vibration Insulation	Small ～ Vibration Insulation	Unfinished Shaft Bore	Low Moment of Inertia	Vibration Insulation	High Torsional Rigidity ～ Small
Allowable Misalignment	Not Provided / Angular Misalignment / Eccentricity	Angular Misalignment / Eccentricity	Angular Misalignment / Eccentricity / Axial Misalignment	Angular Misalignment / Eccentricity	Angular Misalignment / Eccentricity	Angular Misalignment / Eccentricity / Axial Misalignment
Max. Rotational Speed Range(r/min)	-	2001~4000	2001~4000	10001~78000	10001~78000	4001~10000
Body Material	Alloy	Alloy	Alloy	Alloy	Alloy	Alloy
Allowable Torque(N•m)	0.06 ～ 0.5	0.392 ～ 3.923	0.15 ～ 1.5	0.5 ～ 3	0.5 ～ 3	0.147 ～ 0.343
Allowable Angular Misalignment(deg)	1	1	5 ～ 8	2	2	1.5
Allowable Lateral Misalignment(mm)	0.8 ～ 1.6	0.15 ～ 0.35	0.5 ～ 1.2	0.2	0.2	0.1 ～ 0.2
Product Category	-	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body	Coupling Main Body
Allowable Lateral Misalignment Range(mm)	0.41~1.0 ～ 1.1~3.0	0.02~0.2 ～ 0.21~0.40	0.41~1.0 ～ 1.1~3.0	0.02~0.2	0.02~0.2	0.02~0.2
Max. Rotational Speed(r/min)	-	3000	3000	19000 ～ 39000	19000 ～ 39000	5000
Buffer Material	Polyacetal / Nylon	Polyurethane	-	-	Polyurethane	-
Disc Material	-	-	-	-	-	-
Bellows Material	-	-	-	-	-	Phosphor Bronze

Configure

Specification/Dimensions

Shaft Bore Dia. (machined) D1(Ø)
1

1.5

2

2.5

3

3.17

3.2

4

4.5

4.76

5

6

6.35

7

7.93

8

9

9.5

9.52

9.525

9.53

10

11

12

12.7

13

14

15

15.875

16

17

18

19

20

20.5

21

22

23

24

25

25.4

26

27

28

29

30

30.5

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

58

60

65

70

75

80

0635

09525
Drawing

Clear

Shaft Bore Dia. (machined) D2(Ø)
1

1.5

2

2.4

2.5

3

3.17

3.2

4

4.5

4.76

5

6

6.35

7

7.93

8

9

9.252

9.5

9.52

9.525

9.53

10

11

12

12.7

13

14

15

15.875

16

17

18

19

20

21

22

23

24

25

25.4

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

58

60

65

70

75

80
Drawing

Clear

Outer Dia. A(Ø)
6

6.4

8

9

9.5

10

12

12.7

13

13.5

14

14.5

15

15.5

16

16.1

16.5

16.6

16.8

17

17.5

18

19

19.1

19.5

20

21

22

22.2

24

24.5

25

25.4

25.5

26

26.2

26.6

27

27.3

28

28.6

29

30

31.7

31.8

32

33

33.3

34

34.4

35

36

38

38.1

39

39.5

40

41.0

41.3

42

42.5

43

44

44.5

45

46

47

48

49

50

50.8

53

53.6

54

54.5

55

56

57

58

60

63

64

65

66

68

69

69.9

70

73

75

79

79.5

80

81

82

83

85

87

88

90

93

94

94.5

95

99

100

102

104

104.5

105

112

117

118

120

125

126

138

140

143

144

150

152

160

161

168

170

178

185

190

194

200

210

214

225

246

262

276

308

346
Drawing

Clear

Overall Length W(mm)
5.1

7.3

8.4

9

9.4

9.6

10

10.2

10.5

11.2

11.4

11.8

11.9

12

12.35

12.4

12.7

13

13.5

14

14.2

14.4

14.5

14.6

14.7

14.9

15

15.5

15.6

15.7

15.8

15.9

16

16.2

16.5

16.6

16.7

17

17.4

17.5

17.6

17.8

18

18.1

18.4

18.5

18.7

18.8

19

19.1

19.2

19.35

19.4

19.6

19.7

19.8

20

20.2

20.4

20.5

21

21.2

21.3

21.4

21.5

21.6

22

22.1

22.2

22.5

22.9

23

23.05

23.1

23.15

23.2

23.3

23.4

23.5

23.6

24

24.1

24.2

24.4

24.5

24.9

25

25.4

25.45

25.5

25.6

25.7

25.9

26

26.2

26.5

26.6

27

27.2

27.3

27.4

28

28.2

28.3

28.4

28.5

28.6

28.8

29

29.5

29.8

30

30.2

30.4

30.5

31

31.2

31.4

31.5

31.6

31.7

31.8

32

32.2

32.3

32.5

32.6

32.7

32.8

33

33.3

33.5

33.8

34

34.1

34.3

34.4

34.5

35

35.6

36

36.1

36.5

36.8

37

37.2

37.4

37.5

37.8

38

38.1

38.2

38.5

38.6

39

39.2

39.4

39.5

39.7

40

40.5

41

41.3

41.8

42

42.2

43

43.2

43.4

43.5

43.6

44

44.2

44.5

44.7

44.8

45

45.2

45.5

46

46.6

47

47.6

48

48.4

49

49.2

49.4

49.7

50

50.2

50.6

50.8

51

51.2

51.3

52

52.8

53

53.4

53.6

54

54.1

54.3

54.4

54.5

54.6

55

55.5

56

56.2

56.5

56.6

57

58

58.2

58.5

58.6

59

59.7

59.8

59.9

60

60.4

60.5

61

61.2

62

63

63.4

63.5

63.6

63.7

63.8

64

64.8

65

65.6

66

66.6

66.8

67

67.1

67.5

68

68.3

68.5

68.6

68.7

68.8

69.5

69.6

69.8

70

70.5

70.6

70.7

71

71.2

72

72.4

73

73.3

74

74.4

74.8

75

75.6

76

76.2

77

77.6

77.8

78

78.8

79.5

79.8

80

80.8

81

82

82.5

82.6

83

83.6

84

84.7

85

85.2

85.5

85.6

86

88

89.3

89.5

89.6

89.8

89.9

90

90.5

90.8

91

92

93.6

94

95

95.6

96

97.2

98

98.5

98.6

99

99.2

99.6

100

100.2

101

101.6

102

102.5

104

104.4

105.8

106

107.6

108

109

110

111

112.8

113

114

115

115.6

117.6

118

118.4

118.8

119.6

120

120.8

121

123.6

124

125

126

127

129

129.6

131

136.4

137.6

138

140

141

144

144.2

146

147

150

150.6

153.0

154.6

156.4

160

164

164.6

170.6

176

178.4

182.8

192.4

193

200

208.8

209.2

216

217

218

223

238

241.2

249.4

260

286.8

290

307.0

335

337.2

377

391

421

607
Drawing

Clear

Application
- Standard
- Servo Motor
- Stepping Motor
- Encoder
Clear

Allowable Torque Range(N•m)
0.05~1.00

1.01~3.00

3.01~5.00

5.01~10.00

10.01~20.00

20.01~50.00

50.01~100.00

100 < 500

500 < 1000

1000 < 5000

5000 < 10000

10000 < 20000

20000 < 50000
Clear

Features
Clean Environment

Heat Resistant

High Accuracy

High Durability

High Torque

High Torsional Rigidity

Low Moment of Inertia

No Backlash

Small

Standard (Input Prohibited)

Unfinished Shaft Bore

Vacuum Environment

Vibration Insulation
Clear

Allowable Misalignment
- Not Provided
- Angular Misalignment
- Eccentricity
- Axial Misalignment
Larger Image

Clear

Max. Rotational Speed Range(r/min)
100~ 300

1001~2000

2001~4000

4001~10000

10001~78000

78001~
Clear

Body Material
- Stainless Steel
- Steel
- Aluminum
- Alloy
- Plastic
- Aluminum Alloy
Clear

Allowable Torque(N•m)
0.05

0.06

0.08

0.1

0.12

0.147

0.15

0.16

0.18

0.196

0.2

0.21

0.22

0.25

0.3

0.31

0.343

0.35

0.392

0.4

0.42

0.5

0.54

0.55

0.6

0.65

0.7

0.7845

0.8

0.84

0.9

1

1.1

1.2

1.275

1.3

1.4

1.5

1.6

1.7

1.76

1.8

1.961

2

2.1

2.2

2.3

2.4

2.452

2.5

2.6

2.8

3

3.2

3.3

3.4

3.432

3.5

3.6

3.67

3.8

3.923

4

4.2

4.4

4.5

4.7

4.8

4.9

5

5.4

5.5

5.6

6

6.2

6.3

6.4

6.6

6.8

6.865

6.9

7

7.4

7.5

8

8.4

9

9.4

9.6

9.8

9.807

9.81

10

11

11.2

11.6

12

12.5

12.6

13

13.1

13.5

14

14.7

15

15.4

16

17

17.4

17.65

17.652

18

19

19.7

20

21

22

23

24

24.5

25

26

27

28

29

29.42

30

31

32

33

34

34.3

35

36

37.3

37.5

38

39.227

40

41

42

44

44.13

45

46

48

49

49.033

50

51

52

53.9

54

56

60

61

65

66

67

68

70

71

72

75

76

78.5

79

80

84

85

89

90

92

95

96

98.067

100

107

108

110

114

117

118

120

121

123

130

132

135

137

140

150

151

157

160

170

176

176.52

180

188

190

194

196

198

200

210

215.746

220

226

239

245

250

258

260

265

270

294

300

310

314

320

325

352

370

380

400

441

450

490

510

525

530

580

588

600

637

650

800

810

883

900

980

1000

1120

1300

1370

2000

2100

3400

4000

5000

5400

7000

8000

10000

15000

20000
Calculation of the allowable torque (or the Safety Factor, etc.) differs depending on the manufacturer. For details, see the technical data provided by the relevant manufacturer.
Clear

Allowable Angular Misalignment(deg)
0.1

0.2

0.5

0.6

0.7

1

1.2

1.3

1.4

1.5

1.6

1.8

2

2.5

3

3.5

4

5

6

8

10

14
Clear

Allowable Lateral Misalignment(mm)
0

0.01

0.02

0.03

0.04

0.05

0.06

0.08

0.09

0.1

0.11

0.12

0.14

0.15

0.17

0.18

0.2

0.22

0.23

0.24

0.25

0.26

0.27

0.28

0.3

0.31

0.32

0.33

0.34

0.35

0.36

0.38

0.4

0.44

0.45

0.46

0.47

0.48

0.5

0.51

0.52

0.54

0.55

0.6

0.63

0.64

0.68

0.7

0.8

0.82

0.84

0.9

0.91

0.92

1

1.05

1.08

1.1

1.12

1.2

1.3

1.33

1.4

1.5

1.6

1.61

1.9

2

2.1

2.3

2.4

2.5

2.6

2.8

2.9

3

3.2

3.3

3.5

3.8

4

4.5

5

6

7

8

10

12
Clear

Product Category
- Coupling Main Body
- Maintenance Components
Clear

Allowable Lateral Misalignment Range(mm)
Less than 0.02

0.02~0.2

0.21~0.40

0.41~1.0

1.1~3.0

3.1~5.0

5.1~100
Clear

Max. Rotational Speed(r/min)
7,700

14,000

16,000

17,000

18,000

20,000

24,000

27,000

30,000

40,000

250

900

2000

2200

2400

2500

2550

2800

3000

3100

3200

3400

3500

3600

3750

3800

4000

4200

4300

4400

4500

4600

4700

4800

5000

5100

5200

5250

5500

5800

5900

6000

6100

6200

6500

6800

7000

7400

7500

7600

7700

7900

8000

8200

8400

8500

8700

9000

9200

9300

9400

9500

9600

9800

10000

11000

11900

12000

13000

14000

15000

15900

16000

17000

18000

19000

20000

21000

22000

23000

23800

24000

25000

26000

27000

30000

31000

32000

33000

34100

35000

37000

39000

42000

45000

48000

52000

63000

78000

100000
Clear

Buffer Material
- Carbon Reinforced Resin
- Polyacetal
- Polyurethane
- Nylon
- Vespel
- PEEK
- Aluminum Bronze
- Others
- Urethane
- Fluororubber
Clear

Disc Material
- Stainless Steel
- Polyimide
- Carbon Fiber
- Aluminum
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Flexible Shaft Couplings（Body Material：Alloy）

Type

Configure

Specification/Dimensions

Shaft Bore Dia. (machined) D1(Ø)

Shaft Bore Dia. (machined) D2(Ø)

Outer Dia. A(Ø)

Overall Length W(mm)

Application

Allowable Torque Range(N•m)

Features

Allowable Misalignment

Max. Rotational Speed Range(r/min)

Body Material

Allowable Torque(N•m)

Allowable Angular Misalignment(deg)

Allowable Lateral Misalignment(mm)

Product Category

Allowable Lateral Misalignment Range(mm)

Max. Rotational Speed(r/min)

Buffer Material

Disc Material

Bellows Material

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CAD

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