Wittenstein Components & Systems. Catalog 2012/2013 - page 43

15

60

150

300

1500

TP

+ 

004

TP

+ 

010

TP

+ 

025

TP

+ 

050

TP

+ 

110

40 h7

63 h7

80 h7

100 h7

160 h7

31.5

8 x M5

50

8 x M6

63

12 x M6

80

12 x M8

125

12 x M10

40

140

220

400

1570

354

1239

1947

3540

13895

50

210

380

750

2600

443

1859

3363

6638

23010

49

67

72

90

140

68

97

101

128

190

49

66

82

110

157

63.5

86.5

108

132

188

16.5

23

27.5

34

55

12 - 28

14 - 35

19 - 42

24 - 60

50 - 80

56.5

10 x M4

76

10 x M5

97

10 x M6

120

12 x M6

170

16 x M8

1 x M5

1 x M8

1 x M10

1 x M12

2 x M20

8

45

80

120

470

71

399

708

1062

4160

6.5

9.5

11

13

22.5

0.3

0.7

1

2.8

10

0.67

1.55

2.21

6.18

22.05

6,7

21

41

156

379

59

185

363

1380

3357

0.15

0.65

1.3

5.5

45

0.14

0.58

1.16

4.87

39.83

1

1.5

2

2.5

3

0.25

0.25

0.25

0.25

0.2

Series

Gearhead output type

Centering diameter

D

2

 

mm

TP flange hole circle diameter / thread

D

3

 

mm

Nominal torque

T

KN

Nm

in.lb

Max. torque 

a)

T

Kmax

Nm

in.lb

Length 

-2

A

1

 

mm

Length installation space 

-2

A

2

 

mm

Hub diameter

B

1

 

mm

Flange diameter

B

2

 

mm

Fit length

C

1

 

mm

Possible inner diameter from Ø 
to Ø H7

D

1

 

mm

Hole circle diameter / Thread

DL 

mm       

Screws to ISO 4762 

b)

E

Tightening torque of fastening screw E

Nm

in.lb

Distance

G 

mm

Approx. weight

I

kg

lb

Torsional rigidity

C

T

 

Nm/arcmin

in.lb/arcmin

Moment of inertia

J

10

-3

 kgm

2

10

-3  

in.lb.s

2

Axial misalignment

Max. values mm

Lateral misalignment

Max. values mm

Max. angular misalignment 1°

BCT – Bellows coupling

a) Maximum torque transmitted briefly in case of large bore diameters
b) Included in scope of delivery

356

alpha

b) 

b)

 

b)

 

Accessories

Couplings

Material:

 

Hub: Series 15-150 high-strength alu,
 

Series: 300-1500 steel,

Bellows: High-strength stainless steel,
Adapter flange: Steel
Stainless steel version available on request.

Design: 

Load side: With clamping hubs and a single lateral screw 
to ISO 4762.
Gearbox side: With flange connection and separate 
adapter flange.

Temperature range:

 -30 °C to +120°C, (-22 °F to 248°F)

Fit tolerance:

 

Tolerance between shaft and hub 0.01 – 0.05 mm

Speeds:

Up to 10000 rpm

Non-standard applications:

Custom designs with different tolerances, keyways, 
non-standard material, bellows are available at short notice.
High-torque connection available on request.

  Bellows coupling for direct drives

Low backlash metal bellows coupling BCT

With flange connection

Servo gearbox with
ISO robot flange

Adapter flange

Robot flange

On request

Installation and removal

Assembly opening

Flange

Adapter flange

357

15

30

60

80

150

200

300

500

800

1500

A

B

A

B

A

B

A

B

A

B

A

B

A

B

A

B

A

A

15

30

60

80

150

200

300

500

800

1500

133

266

531

708

1328

1770

2655

4425

7080

13275

59

66

69

77

83

93

94

106

95

107

105

117

111

125

133

146

140

166

49

55

66

81

81

90

110

124

134

157

22

27

31

36

36

41

43

51

45

55

8 – 28

10 – 30

12 – 32

14 – 42

19 – 42

22 – 45

24 – 60

35 – 60

40 – 75

50 – 80

M5

M6

M8

M10

M10

M12

M12

M16

2xM16

a)

2xM20

a)

8

15

40

50

70

120

130

200

250

470

71

133

354

443

620

1062

1151

1770

2213

4160

17

19

23

27

27

31

39

41

2x48

2x55

6.5

7.5

9.5

11

11

12.5

13

16.5

18

22.5

0.05

0.07

0.12

0.13

0.32

0.35

0.8

0.85

1.9

2

3.2

3.4

7.6

7.9

14.3

14.6

16.2

43.5

0.0443

0.0620

0.1062

0.1151

0.2832

0.3098

0.7081

0.7523

1.68

1.77

2.83

3.01

6.73

6.99

12.66

12.92

14.34

38.50

0.16

0.26

0.48

0.8

1.85

2.65

4

6.3

5.7

11.5

0.353

0.573

1.764

1.764

4.079

5.842

8.818

13.889

12.566

25.353

5,8

4,4

11

8,1

22

16

38

25

51

32

56

41

131

102

148

145

227

379

51

39

100

72

196

142

332

219

451

283

492

360 1158

901

1313 1287

2008

3357

1

2

1

2

1.5

2

2

3

2

3

2

3

2.5

3.5

2.5

3.5

3.5

3.5

0.15

0.2

0.2

0.25

0.2

0.25

0.2

0.25

0.2

0.25

0.25

0.3

0.25

0.3

0.3

0.35

0.35

0.35

25

15

50

30

72

48

48

32

82

52

90

60

105

71

70

48

100

320

475

137

900

270

1200

420

920

290

1550

435

2040

610

3750 1050 2500

840

2000

3600

Series

Length options 

(see ordering code)

Rated torque

T

KN

Nm

in.lb

Overall length

A 

mm

Outer diameter

B 

mm

Fit length

C 

mm

Inner diameter from Ø to Ø H7

D

1

/D

2

 

mm

Fastening screws to ISO 4762

E

Tightening torque of fastening 
screws

E

Nm

in.lb

Distance between centers

F 

mm

Distance

G 

mm

Moment of inertia

J

10

-3

kgm²

10

-3 

in.lb.s

2

Hub material 

(standard) (steel on request)

Al

Al

Al

Al

Steel

Steel

Steel

Steel

Steel

Steel

Approx. weight 

kg

lb

Torsional rigidity

C

T

Nm/arcmin

in.lb/arcmin

Axial misalignment

max. values  mm

Lateral misalignment

max. values  mm

Axial spring stiffness

C

a

 

N/mm

Lateral spring stiffness

C

r

 

N/mm

BC2 – Bellows coupling

b) Included in scope of delivery

358

alpha

b) 

Accessories

Couplings

Keyway optional

Material:

Bellows made of highly flexible stainless steel.  
Hub material: see table below.
Stainless steel version available on request.

Design: 

With clamping hubs and a single lateral screw to ISO 4762. 
Any imbalance of the clamping hubs due to the design is 
compensated by balancing bores located on the hub interior.

Temperature range:

 

-30 °C to +120°C (-22 °F to 248 °F)

Backlash: 

Completely backlash-free as a result of the frictional clamp 
connection.

Service life: 

These torque limiters are permanent and maintenance-free as 
long as the performance limits are not exceeded.

Fit tolerance: 

Tolerance between shaft and hub 0.01 – 0.05 mm

Speeds: 

 

Up to 10,000 rpm / in excess of 10,000 rpm with finely 
balanced version.

Brief overload:

 

Acceptable up to 1.5 times the value specified.

Bellows coupling BC2

With clamping hub

  Bellows coupling for direct drives

359

15

30

60

150

200

300

500

800

1500

4000

6000

10000

A

B

A

B

A

B

A

B

A

B

A

B

A

B

A

A

A

A

A

15

30

60

150

200

300

500

800

1500

4000

6000

10000

133

266

531

1328

1770

2655

4425

7080

13275

35400

53100

88500

48

55

57

65

66

76

75

87

78

90

89

103

97

110

114

141

195

210

217

49

55

66

81

90

110

124

133

157

200

253

303

19

22

27

32

32

41

41

50

61

80

85

92

10 – 22

12 – 23

12 – 29

15 – 38

15 – 44

24 – 56

24 – 60

30 – 60

35 – 70

50 – 100

60 – 140

70 – 180

M4

M5

M5

M6

M6

M8

M8

M10

M12

M16

M16

8xM16

4

6

8

12

14

18

25

40

70

120

150

160

36

54

71

107

124

160

222

354

620

1062

1328

1416

M4

M4

M5

M5

M6

M6

M6

M6

6xM8

6xM10

6xM10

8xM10

49

55

66

81

90

110

122

116

135

180

246

295

0.08 0.08 0.15 0.16 0.39 0.41 1.2

1.6

1.7

2.5

5.1

5.9

9.1

9.9

13.2

34.9

85.5

254

629

0.071

0.073

0.13

0.14

0.35

0.36

1.06

1.42

1.5

2.21

4.51

5.22

8.05

8.76

11.7

30.9

75.7

224.8

556.7

0.26 0.27 0.42 0.44 0.71 0.74

1.2

1.8

3

4.2

5.6

8.2

23

32.6

45.5

0.57 0.60 0.93 0.97 1.57 1.63

2.65

3.97

6.61

9.33

12.3

18.1

50.7

71.9

100.3

5,8

4,4

11

8,1

22

16

51

32

56

41

131 102 148 145

227

379

989

1658

3185

51

39

100

72

196 142 451 283 492 360 1158 901 1313 1287

2008

3357

8753

14674

28189

1

2

1

2

1.5

2

2

3

2

3

2.5

3.5

2.5

3.5

3.5

3.5

3.5

3

3

0.15 0.2

0.2 0.25 0.2 0.25 0.2 0.25 0.25 0.3 0.25 0.3

0.3 0.35

0.35

0.35

0.4

0.4

0.4

25

15

50

30

72

48

82

52

90

60

105

71

70

48

100

320

565

1030

985

475 137 900 270 1200 420 1500 435 2040 610 3750 1050 2500 840

2000

3600

6070

19200

21800

Series

Length options 

(see ordering code)

Rated torque

T

KN

Nm

in.lb

Overall length without screw head

A 

mm

Outer diameter

B 

mm

Fit length

C 

mm

Inner diameter from Ø to Ø H7

D

1

/D

2

 

mm

6 x fastening screws to ISO 4017

E 

Tightening torque of fastening 
screws

E

Nm

in.lb

3 x jack screws to ISO 4017

F 

Outer diameter of hub

G 

mm

Moment of inertia

J

10

-3

kgm²

10

-3 

in.lb.s

2

Approx. weight 

kg

lb

Torsional rigidity

C

T

Nm/arcmin

in.lb/arcmin

Axial misalignment

max. values  mm

Lateral misalignment

max. values  mm

Axial spring stiffness

C

a

 

N/mm

Lateral spring stiffness

C

r

 

N/mm

Max. angular misalignment 1.5°

BC3 – Bellows coupling

b) Included in scope of delivery

360

alpha

b) 

b) 

Accessories

Couplings

Material:

Bellows made of highly flexible stainless steel.  
Hub material: steel.
Stainless steel version available on request.

Design: 

 

With split conical clamping hubs and strong, captive jack 
screws to ISO 4017.

Temperature range:

 

-30 °C to +120°C (-22 °F to 248°F)

Backlash: 

Completely backlash-free as a result of the frictional clamp 
connection.

Service life: 

These torque limiters are permanent and maintenance-free as 
long as the performance limits are not exceeded.

Fit tolerance: 

Tolerance between shaft and hub 0.01-0.05 mm

Speeds: 

 

Up to 10000 rpm / in excess of 10000 rpm with finely balanced 
version.

Brief overload:

 

Acceptable up to 1.5 times the value specified.

Bellows coupling BC3

With conical connection

  Bellows coupling for direct drives

361

2

4.5

10

15

30

60

80

150

300

500

A

A

A

A

A

A

A

A

B

A

B

A

B

2

4.5

10

15

30

60

80

150

300

500

18

40

89

133

266

531

708

1328

2655

4425

30

40

44

58

68

79

92

92

109

114

25

32

40

49

56

66

82

82

110

123

10.5

13

13

21.5

26

28

32.5

32.5

41

42.5

4 – 12.7

6 – 16

6 – 24

8 – 28

12 – 32

14 – 35

16 – 42

19 – 42

24 – 60

35 – 62

M3

M4

M4

M5

M6

M8

M10

M10

M12

M16

2.3

4

4.5

8

15

40

70

85

120

200

21

36

40

71

133

354

620

753

1062

1770

8

11

14

17

20

23

27

27

39

41

4

5

5

6.5

7.5

9.5

11

11

13

17

0.002

0.007

0.016

0.065

0.12

0.3

0.75

1.8

0.8

7.5

3.8

11.7

4.9

0.0018

0.0062

0.0142

0.0575

0.1062

0.2655

0.6638

1.59

0.71

6.64

3.36

10.36

4.34

0.02

0.05

0.06

0.16

0.25

0.4

0.7

1.7

0.75

3.8

1.6

4.9

2.1

0.044

0.110

0.132

0.353

0.551

0.882

1.54

3.75

1.65

8.38

3.53

10.80

4.63

0,44

2,0

2,6

6,7

9,0

21

23

41

46

84

3,9

18

23

59

80

185

206

363

404

747

0.5

1

1

1

1

1.5

2

2

2

2.5

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

8

35

30

30

50

67

44

77

112

72

50

350

320

315

366

679

590

960

2940

1450

Series

Length options 

see ordering code

Rated torque

T

KN

Nm

in.lb

Overall length

A 

mm

Outer diameter 

B 

mm

Fit length

C 

mm

Inner diameter from Ø to Ø H7

D

1

/D

2

 

mm

Fastening screws to ISO 4762

E 

Tightening torque of fastening 
screw

E

Nm

in.lb

Distance between centers

F 

mm

Distance

G 

mm

Moment of inertia

J

10

-3

kgm²

10

-3 

in.lb.s

2

Hub material 

Al

Al

Al

Al

Al

Al

Al

Steel

Al

Steel

Al

Steel

Al

Approx. weight 

kg

lb

Torsional rigidity

C

T

 

Nm/arcmin

in.lb/arcmin

Axial misalignment

max. values  mm

Lateral misalignment

max. values mm

Axial spring stiffness

C

a

 

N/mm

Lateral spring stiffness

C

r

 

N/mm

Max. angular misalignment 1°

EC2 – Bellows coupling

b) Included in scope of delivery

362

alpha

b) 

Accessories

Couplings

Bellows coupling EC2  

With clamping hub

Material:

Bellows made of highly flexible stainless steel.  
Hub material: see table below.

Design: 

With clamping hubs and a single lateral screw to ISO 4762.

Temperature range:

 -30 °C to +100°C (-22 °F to 212 °F)

Backlash:

 

Completely backlash-free as a result of the frictional clamp 
connection.

Service life:

These torque limiters are permanent and maintenance-free as 
long as the performance limits are not exceeded.

Fit tolerance: 

Tolerance between shaft and hub 0.01 – 0.05 mm

Optional self-opening clamp system:

 

For expanding the bore hole during assembly or dismantling.

Optional disassembly 
system

PFN DIN 6885 on request

  Bellows coupling for direct drives

363