Zahnstangen FIRST

Economy range for translation of light loads, normal duty

 
Precision Material Core hardness Surface hardness Teeth Sides ∥ ⊥
ISO 8 C45 <650 N/mm² <20 HRC Denture taillée Brutes d'étirage 0,06 mm/m -
Available modules
1 - 1.5 - 2 - 3

Module

1

1,5

2

3

individual pitch error (mm)

± 0.016

± 0.016

± 0.016

± 0.016

Cumulative pitch error (1,000 mm)

< 0.063

< 0.063

< 0.063

< 0.071
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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

14

13

5.32

-

-

-

-

-

-

-

-

-

-

-

-

-

-

FIR-H-1-500

1

300

1000

15

14

13

5.32

-

-

-

-

-

-

-

-

-

-

-

-

-

-

FIR-H-1-1000

1

150

500

20

20

19

7.09

-

-

119.68

253.54

-

-

-

2

7.5

7

7

11

-

-

FIR-HL-1-500

1

300

1000

20

20

19

7.09

-

-

159.57

333.33

-

-

-

3

7.5

7

7

11

-

-

FIR-HL-1-1000

1,5

100

500

15

14

12.5

5.32

-

-

-

-

-

-

-

-

-

-

-

-

-

-

FIR-H-1.5-500

1,5

200

1000

15

14

12.5

5.32

-

-

-

-

-

-

-

-

-

-

-

-

-

-

FIR-H-1.5-1000

1,5

100

500

20

20

18.5

7.09

-

-

117.91

250

-

-

-

2

7.5

7

7

11

-

-

FIR-HL-1.5-500

1,5

200

1000

20

20

18.5

7.09

-

-

159.57

333.33

-

-

-

3

7.5

7

7

11

-

-

FIR-HL-1.5-1000

2

75

500

20

20

18

7.09

-

-

117.90

250

-

-

-

2

7.5

7

7

11

-

-

FIR-H-2-500

2

150

1000

20

20

18

7.09

-

-

159.56

333.33

-

-

-

3

7.5

7

7

11

-

-

FIR-H-2-1000

2

75

500

25

24

22

8.86

-

-

62.5

125

-

-

-

4

8

7

7

11

-

-

FIR-HL-2-500

2

150

1000

25

24

22

8.86

-

-

62.5

125

-

-

-

8

8

7

7

11

-

-

FIR-HL-2-1000

3

50

500

30

29

26

10.64

-

-

62.5

125

-

-

-

4

9

9

10

15

-

-

FIR-H-3-500

3

100

1000

30

29

26

10.64

-

-

62.5

125

-

-

-

8

9

9

10

15

-

-

FIR-H-3-1000

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
B=15		 Module 1
B=20		 Module 2
B=20		 Module 2
B=25		 Module 3
B=30
21 Transmittable force (Ft) (N) 360 230 540 970 2740
Torque (T) (Nm) 4.0 2.6 9 22 92
Axial force (Fa) (N) 130 82 192 345 975
Radial force (Fr) (N) 140 90 210 375 1060
25 Transmittable force (Ft) (N) 260 340 810 1400 4110
Torque (T) (Nm) 3.4 4.5 16 35 165
Axial force (Fa) (N) 92 121 290 500 1460
Radial force (Fr) (N) 100 131 313 540 1590
30 Transmittable force (Ft) (N) 410 560 1150 2020 5880
Torque (T) (Nm) 6.5 9 30 65 280
Axial force (Fa) (N) 145 200 410 715 2085
Radial force (Fr) (N) 160 220 450 780 2270

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