Precision rack / CLASSIC range helical teeth

Precise and silent translation of light loads over long distances, normal duty


Precision Material Core hardness Surface hardness Teeth Sides
(mm/m)

(mm)
ISO 7 C45 >650N/mm² 20 HRC Cut Milled (Ra=1.6) 0.05 0.05
Standard available modules
1, 1.5, 2, 3, 4, 5, 6, 8, 10
Module 1 1,5 2 3 4 5 6 8 10
Individual pitch error (mm) ± 0.011 ± 0.011 ± 0.011 ± 0.012 ± 0.014 ± 0.014 ± 0.014 ± 0.016 ± 0.016
Cumulative pitch error (on 1,000 mm) < 0.045 < 0.045 < 0.045 < 0.050 < 0.056 < 0.056 < 0.056 < 0.063 < 0.063
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Mod

Number of teeth

L

B

H

Ho

I

E

E'

F

F'

R

S

T

M

G

O

C

K

J

An

references

1

150

500

15

15

14

-

-

-

-

-

-

-

-

-

-

-

-

-

1

45°

CLA-H-1-500

300

1000

15

15

14

-

-

-

-

-

-

-

-

-

-

-

-

-

1

45°

CLA-H-1-1000

1.5

100

500

20

20

19

-

-

-

-

-

-

-

-

-

-

-

-

-

1

45°

CLA-H-1.5-500

200

1000

20

20

19

-

-

-

-

-

-

-

-

-

-

-

-

-

1

45°

CLA-H-1.5-1000

2

75

500

24

24

22

8.51

31.7

436.6

62.5

125

8

2

5.7

4

8

7

7

11

2

45°

CLA-H-2-500

150

1000

24

24

22

8.51

31.7

936.6

62.5

125

8

2

5.7

8

8

7

7

11

2

45°

CLA-H-2-1000

3

50

500

29

29

26

10.29

35

430

62.5

125

9

2

7.7

4

9

9

10

15

2

45°

CLA-H-3-500

100

1000

29

29

26

10.29

35

930

62.5

125

9

2

7.7

8

9

9

10

15

2

45°

CLA-H-3-1000

4

38

506.67

39

39

35

13.83

33.3

433

62.5

125

12

2

7.7

4

12

9

10

15

2

45°

CLA-H-4-500

75

1000

39

39

35

13.83

33.3

933.4

62.5

125

12

2

7.7

8

12

9

10

15

2

45°

CLA-H-4-1000

5

30

500

49

49

44

17.38

37.5

425

62.5

125

12

2

11.7

4

12

13

14

20

2

45°

CLA-H-5-500

60

1000

49

49

44

17.38

37.5

925

62.5

125

12

2

11.7

8

12

13

14

20

2

45°

CLA-H-5-1000

6

25

500

59

59

44

20.93

37.5

425

62.5

125

16

2

15.7

4

16

17

18

26

2

45°

CLA-H-6-500

50

1000

59

59

44

20.93

37.5

925

62.5

125

16

2

15.7

8

16

17

18

26

2

45°

CLA-H-6-1000

8

18

480

79

79

44

28.02

120

240

60

120

25

2

19.7

4

25

21

22

33

2

45°

CLA-H-8-500

36

960

79

79

44

28.02

120

720

60

120

25

2

19.7

8

25

21

22

33

2

45°

CLA-H-8-1000

10

15

500

99

99

89

35.11

125

-

62.5

125

32

2

19.7

4

32

32

33

48

2

45°

CLA-H-10-500

30

1000

99

99

89

35.11

125

750

62.5

125

32

2

19.7

8

32

32

33

48

2

45°

CLA-H-10-1000


Helical teeth usually transmit more torque than straight teeth. They also allow a quiter operation. On the other hand they generate axial and radial forces that require checking the correct dimensionning of your bearings / gearbox.

The table hereunder shows the transmittable torque and force, as well as radial and axial forces generated by the helical toothing.

Please note that not all gearboxes are suitable for a helical rack/pinion system. The MNT and BDB ranges feature angular-contact ball-bearings or tappered rollers bearings and can handle more important axial forces. All axial / radial capabilities of our gearboxes can be found in our datasheets.

Please note that MIJNO can also supply the pinion most adapted to your rack and gearbox selection.

Number of
teeth
of the
pinion

 

Module
1

Module
1,5

Module
2

Module
3

Module
4

Module
5

Module
6

Module
8

Module
10

21

Transmittable force
(Ft) (N)

360

540

970

2740

6500

12140

19620

39930

67960

Torque
(T) (Nm)

4,0

9

22

92

290

675

1310

3550

7600

Axial force
(Fa) (N)

130

190

345

975

2300

4306

6959

14162

24104

Radial force
(Fr) (N)

140

210

375

1060

2510

4700

7580

15400

26300

25

Transmittable force
(Ft) (N)

260

810

1400

4110

9090

16360

25600

51520

86570

Torque
(T) (Nm)

3,4

16

35

165

480

1085

2037

5466

11500

Axial force
(Fa) (N)

92

290

500

1460

3225

5800

9080

18273

30700

Radial force
(Fr) (N)

100

315

540

1590

3510

6320

9900

19900

33400

30

 

Transmittable force
(Ft) (N)

410

1150

2020

5880

12490

21570

34010

66730

110290

Torque 
(T) (Nm)

6.5

27

65

280

795

1715

3250

8500

17600

Axial force
(Fa) (N)

145

410

715

2085

4430

6750

12100

23700

39100

Radial force
(Fr) (N)

160

445

780

2270

4825

8330

13200

25770

42600