8/14/2019 SSG Ground Spur Gears

1/12

SSG1- 64SSG1- 70SSG1- 75SSG1- 80SSG1- 90

SSG1-100SSG1-120

SSG1- 48SSG1- 50SSG1- 55SSG1- 56SSG1- 60

SSG1- 38SSG1- 40SSG1- 42SSG1- 44SSG1- 45

SSG1- 30SSG1- 32SSG1- 34SSG1- 35SSG1- 36

SSG1- 25SSG1- 26SSG1- 27SSG1- 28SSG1- 29

SSG1- 20SSG1- 21SSG1- 22SSG1- 23SSG1- 24

SSG1- 15SSG1- 16SSG1- 17SSG1- 18SSG1- 19

11111

11111

11111

11111

11111

11111

11111

11

0 150 160 170 180 19

0 200 210 220 230 24

0 250 260 270 280 29

0 300 320 340 350 36

0 380 400 420 440 45

0 480 500 550 560 60

0 640 700 750 800 90

100120

0 60 60 60 60 6

0 60 80 80 80 8

0 80 80 80 80 8

1010101010

1010101010

1012121212

1212121515

1515

1213141516

1718182020

2020202025

2525252525

3030303030

3035353540

4040405050

5050

0 150 160 170 180 19

0 200 210 220 230 24

0 250 260 270 280 29

0 300 320 340 350 36

0 380 400 420 440 45

0 480 500 550 560 60

0 640 700 750 800 90

100120

0 170 180 190 200 21

0 220 230 240 250 26

0 270 280 290 300 31

0 320 340 360 370 38

0 400 420 440 460 47

0 500 520 570 580 62

0 660 720 770 820 92

102122

88888

88888

88888

88888

88888

1010101010

1010101010

1010101010

1010101010

1010101010

1818181818

1818181818

1818181818

1818181818

1818181818

Module 1

46

88888

1010101010

1818181818

88888

1010101010

1818181818

88

1010

1818

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

SSG Ground Spur Gears 1Module

Gears

CatalogNo.

Module No. of teeth Web OWeb thicknessTotal lengthHub widthFace widthNOTE 1Outside dia.Pitch dia.Hub dia.Borem z A H7 B C D E F G H I

8/14/2019 SSG Ground Spur Gears

2/12

SSG1- 64SSG1- 70SSG1- 75SSG1- 80SSG1- 90

S1S1S1S1S1

19.27 021.4 0023.18 0 24.98 028.57 0

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1

0 5.0810 5.4570 5.8370 6.2190 6.605

0 6.9920 7.3830 7.7760 8.1710 8.568

0 8.9660 8.14 0 0 8.8140 9.1530 9.493

10.18 010.87 0 11.55 0 12.24 012.59 0

13.63 0 14.33 0 16.08 0 16.44 0 17.85 0

29.69 036.37 0

0 1.9380 2.1440 2.36 0 0 2.5880 2.825

0 3.0740 3.3340 3.6040 3.8850 4.177

0 4.48 00 4.2650 4.8390 5.14 00 5.449

0 6.0990 6.7860 7.5130 8.2770 8.673

0 9.92410.81 0 13.18 0 13.68 015.8 00

18.08 021.81 025.19 028.84 036.93 0

42.54 062.5 00

0.51810.55650.59520.63420.6735

0.713 00.75290.79290.83320.8737

0.91430.83010.89880.93340.968 0

1.038 01.108 01.178 01.248 01.284 0

1.39 001.461 01.64 001.676 01.82 00

1.965 02.182 02.364 02.547 02.913 0

3.028 03.709 0

0.19760.21860.24070.26390.2881

0.31350.34 000.36750.39620.4259

0.45680.43490.49340.52410.5557

0.62190.692 00.76610.844 00.8844

1.012 01.102 01.344 01.395 01.611 0

1.844 02.224 02.569 02.941 03.766 0

4.338 06.373 0

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.16

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.16

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.16

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.16

0.08 ~ 0.160.08 ~ 0.160.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.18

0.1 0 ~

0.180.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.18

0.10 ~ 0.180.12 ~ 0.2 0

0.030.040.040.040.05

0.050.050.050.060.07

0.070.080.080.090.09

0.120.120.130.140.15

0.160.180.210.210.26

0.290.330.360.450.53

0.620.84

SSG1- 20SSG1- 21SSG1- 22SSG1- 23SSG1- 24

SSG1- 25SSG1- 26SSG1- 27SSG1- 28SSG1- 29

SSG1- 30SSG1- 32SSG1- 34SSG1- 35SSG1- 36

SSG1- 38SSG1- 40SSG1- 42SSG1- 44SSG1- 45

SSG1- 48SSG1- 50SSG1- 55SSG1- 56SSG1- 60

SSG1-100SSG1-120

S1S1S1S1S1

0 3.2670 3.62 00 3.9780 4.3410 4.709

0 1.0330 1.19 00 1.3590 1.54 00 1.733

0.33310.36910.40560.44270.4802

0.10530.12130.13860.157 00.1767

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.16

0.020.020.020.030.03

SSG1- 15SSG1- 16SSG1- 17SSG1- 18SSG1- 19

47

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angleMaterial

Heat treatment

Standard full depth

20

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground

GroundBore

JIS N7 grade (JIS B1702-1:1998)OLD JIS 3 grade (JIS B1702:1976)

Datum reference surfacefor gear grinding

Possible except tooth are

Backlash (mm)NOTE 3Bending strengthSurface durability

ShapeBending strength

Allowable torque (N.m) NOTE 2 Weight(kgf)

CatalogNo.

Allowable torque (kgf.m)

Surface durability

8/14/2019 SSG Ground Spur Gears

3/12

SSG1.5- 60SSG1.5- 64SSG1.5- 70SSG1.5- 75SSG1.5- 80

SSG1.5- 14SSG1.5- 15SSG1.5- 16SSG1.5- 17SSG1.5- 18

SSG1.5- 19SSG1.5- 20SSG1.5- 21SSG1.5- 22SSG1.5- 23

SSG1.5- 24SSG1.5- 25SSG1.5- 26SSG1.5- 27SSG1.5- 28

SSG1.5- 29SSG1.5- 30SSG1.5- 32SSG1.5- 34SSG1.5- 35

SSG1.5- 36SSG1.5- 38SSG1.5- 40SSG1.5- 42SSG1.5- 44

SSG1.5- 45SSG1.5- 48SSG1.5- 50SSG1.5- 55SSG1.5- 56

SSG1.5- 90SSG1.5-100

1.51.51.51.51.5

1.51.51.51.51.5

1.51.51.51.51.5

1.51.51.51.51.5

1.51.51.51.51.5

1.51.51.51.51.5

1.51.51.51.51.5

1.51.5

0 140 150 160 170 18

0 190 200 210 220 23

0 240 250 260 270 28

0 290 300 320 340 35

0 360 380 400 420 44

0 450 480 500 550 56

0 600 640 700 750 80

0 90100

1010101010

1010101212

1212121515

1515151515

1515151515

1818181818

2020202020

2020

1718202122

2324252627

2830323436

3738404242

4545505050

5050606060

6060606070

7070

0 21 .00 22.50 24 .00 25.50 27 .0

0 28.50 30 .00 31.50 33 .00 34.5

0 36 .00 37.50 39 .00 40.50 42 .0

0 43.50 45 .00 48 .00 51 .00 52.5

0 54 .00 57 .00 60 .00 63 .0 0 66 .0

0 67.50 72 .00 75 .00 82.50 84 .0

0 90 .00 96 .0

105112.5120 .0

135 .0150 .0

0 24 .00 25.50 27 .00 28.50 30 .0

0 31.50 33 .0 0 34.50 36 .00 37.5

0 39 .00 40.50 42 .0 0 43.50 45 .0

0 46.50 48 .00 51 .00 54 .00 55.5

0 57 .00 60 .00 63 .0 0 66 .00 69 .0

0 70.50 75 .00 78 .00 85.50 87 .0

0 93 .0 0 99 .0 108 .0115.5123 .0

138 .0153 .0

1515151515

1515151515

1515151515

1515151515

1515151515

1515151515

1515151515

1515

1414141414

1414141414

1414141414

1414141414

1414141414

1414141414

1414141414

1414

2929292929

2929292929

2929292929

2929292929

2929292929

2929292929

2929292929

2929

Module 1.5

48

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

SSG Ground Spur Gears 1.5Module

Gears

CatalogNo.

Module No. of teeth Web OWeb thicknessTotal lengthHub widthFace widthNOTE 1Outside dia.Pitch dia.Hub dia.Borem z A H7 B C D E F G H I

8/14/2019 SSG Ground Spur Gears

4/12

SSG1.5- 36SSG1.5- 38SSG1.5- 40SSG1.5- 42SSG1.5- 44

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1

0 19.870 21.440 23.030 20.520 21.86

0 23.220 24.590 25.960 27.340 28.72

0 30.120 31.520 34.340 37.190 38.62

0 40.050 42.920 45.820 48.730 51.64

0 53.110 57.520 60.460 67.860 69.35

0 75.3 0 0 75.040 83.350 90.3 00 97.26

111.2 0 125.2 0

00 7.32500 8.19400 9.11400 8.41 000 9.271

0 10.18 00 11.12 00 12.07 00 13.06 00 14.08 0

0 15.15 0 0 16.26 0 0 18.6 000 21.11 0 0 22.43 0

0 23.78 0 0 26.62 0 0 29.63 00 32.8 000 36.16 0

0 37.89 0 0 43.37 0 0 47.24 0 0 57.68 0 0 59.91 0

0 69.23 00 73.2 000 88.4 00102.3 00117.2 00

150 .000 186.8 00

0 2.0260 2.1860 2.3480 2.0920 2.229

0 2.3680 2.5070 2.6470 2.7880 2.929

0 3.0710 3.2140 3.5020 3.7920 3.938

0 4.0840 4.3770 4.6720 4.9690 5.266

0 5.4160 5.8650 6.1650 6.92 00 7.072

0 7.6790 7.6520 8.4990 9.2080 9.918

11.34 012.77 0

0 0.74690 0.83560 0.92940 0.85760 0.9454

0 1.038 00 1.134 00 1.231 00 1.332 00 1.436 0

0 1.545 00 1.658 00 1.897 00 2.153 00 2.287 0

0 2.425 00 2.715 00 3.021 00 3.345 00 3.687 0

0 3.864 00 4.423 00 4.817 00 5.882 00 6.109 0

0 7.06 000 7.464 00 9.014 010.43 0011.95 00

15.3 00019.05 00

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.16

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.16

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.1 0 ~ 0.180.1 0 ~ 0.18

0.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.18

0.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.180.1 0 ~ 0.18

0.1 0 ~

0.180.1 0 ~ 0.180.12 ~ 0.2 0 0.12 ~ 0.2 00.12 ~ 0.2 0

0.12 ~ 0.2 00.12 ~ 0.2 0

0.1 0 0.120.130.140.15

0.160.18 0 0.2 0 0.210.24

0.250.270.310.350.37

0.410.440.510.540.58

0.580.640.77 00.910.91

1.1 01.3 0 1.4 01.7 0

2 .00 2.4 0

SSG1.5- 19SSG1.5- 20SSG1.5- 21SSG1.5- 22SSG1.5- 23

SSG1.5- 24SSG1.5- 25SSG1.5- 26SSG1.5- 27SSG1.5- 28

SSG1.5- 29SSG1.5- 30SSG1.5- 32SSG1.5- 34SSG1.5- 35

SSG1.5- 45SSG1.5- 48SSG1.5- 50SSG1.5- 55SSG1.5- 56

SSG1.5- 60SSG1.5- 64SSG1.5- 70SSG1.5- 75SSG1.5- 80

SSG1.5- 90SSG1.5-100

S1S1S1S1S1

0 12.320 13.780 15.270 16.780 18.32

00 3.72600 4.34600 5.01600 5.73600 6.505

0 1.2560 1.4050 1.5570 1.7110 1.868

0 0.38 000 0.44320 0.51150 0.58490 0.6633

0.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.160.08 ~ 0.16

0.050.060.070.080.09 0

SSG1.5- 14SSG1.5- 15SSG1.5- 16SSG1.5- 17SSG1.5- 18

49

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

0.99

Ground Spur Gears

Backlash (mm)NOTE 3Bending strengthSurface durability

ShapeBending strength

Allowable torque (N.m) NOTE 2 Weight(kgf)

CatalogNo.

Allowable torque (kgf.m)

Surface durability

Specifications

Precision grade

Gear teeth

Pressure angleMaterial

Heat treatment

Standard full depth

20

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground

GroundBore

JIS N7 grade (JIS B1702-1:1998)OLD JIS 3 grade (JIS B1702:1976)

Datum reference surfacefor gear grinding

Possible except tooth are

8/14/2019 SSG Ground Spur Gears

5/12

SSG2- 14SSG2- 15SSG2- 16SSG2- 17SSG2- 18

SSG2- 19SSG2- 20SSG2- 21SSG2- 22SSG2- 23

SSG2- 24SSG2- 25SSG2- 26SSG2- 27SSG2- 28

SSG2- 29SSG2- 30SSG2- 32SSG2- 34SSG2- 35

SSG2- 36SSG2- 38SSG2- 40SSG2- 42SSG2- 44

SSG2- 45SSG2- 48SSG2- 50SSG2- 55SSG2- 56

SSG2- 60SSG2- 64SSG2- 70SSG2- 75SSG2- 80

SSG2- 90SSG2-100

22222

22222

22222

22222

22222

22222

22222

22

0 140 150 160 170 18

0 190 200 210 220 23

0 240 250 260 270 28

0 290 300 320 340 35

0 360 380 400 420 44

0 450 480 500 550 56

0 600 640 700 750 80

0 90100

1212121212

1215151515

1515151515

1518181818

1818202020

2020252525

2525252525

2525

2224262830

3132343637

3840424445

4850505050

5050606060

6060606060

6565707080

8080

0 280 300 320 340 36

0 380 400 420 440 46

0 480 500 520 540 56

0 580 600 640 680 70

0 720 760 800 840 88

0 900 96100110112

120128140150160

180200

0 320 340 360 380 40

0 420 440 460 480 50

0 520 540 560 580 60

0 620 640 680 720 74

0 760 800 840 880 92

0 94100104114116

124132144154164

184204

2020202020

2020202020

2020202020

2020202020

2020202020

2020202020

2020202020

2020

1616161616

1616161616

1616161616

1616161616

1616161616

1616161616

1616161616

1616

3636363636

3636363636

3636363636

3636363636

3636363636

3636363636

3636363636

3636

Module 2

50

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

SSG Ground Spur Gears 2Module

Gears

CatalogNo.

Module No. of teeth Web OWeb thicknessTotal lengthHub widthFace widthNOTE 1Outside dia.Pitch dia.Hub dia.Borem z A H7 B C D E F G H I

8/14/2019 SSG Ground Spur Gears

6/1251

0 39.250 42.340 45.470 48.640 51.83

0 94.93101.8 0108.7 0115.5 0122.4 0

0 71.390 74.720 81.4 00 88.140 91.53

0 55.030 58.270 61.530 64.8 00 68.09

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1

125.9 0125.8 0132.3 0148.5 0151.7 0

164.8 0 177.9 0197.6 0214.1 0214.1 0

244.9 0 275.8 0

0 14.78 00 16.55 00 18.43 00 20.42 00 22.51 0

0 24.7 000 27.01 00 29.31 00 31.7 000 34.21 0

0 36.8 00 0 39.51 00 45.21 00 51.32 00 54.52 0

0 57.83 00 64.76 00 72.11 00 79.87 00 88.06 0

0 92.32 00 97.59 0106.3 00130 .000135 .000

156.2 00179.1 00215.7 00249.1 00264.6 00

338.3 00421.2 00

0 2.9780 3.3310 3.0760 3.38 00 3.689

0 4.0020 4.3180 4.6370 4.96 00 5.285

0 5.6120 5.9420 6.2740 6.6080 6.943

0 7.28 00 7.6190 8.3010 8.9880 9.334

0 9.68 010.38 011.08 011.78 012.48 0

12.84 012.83 013.49 015.14 015.47 0

16.8 0018.14 020.15 021.83 021.83 0

24.97 028.12 0

0 0.91830 1.071 00 1.029 00 1.178 00 1.337 0

0 1.507 00 1.688 00 1.879 00 2.082 00 2.295 0

0 2.519 00 2.754 00 2.989 00 3.233 00 3.488 0

0 3.753 00 4.029 00 4.61 000 5.233 00 5.56 00

0 5.897 00 6.604 00 7.353 00 8.145 00 8.98 00

0 9.414 00 9.952 010.84 0013.26 0013.77 00

15.93 0018.26 0022 .000025.4 00026.98 00

34.5 00042.95 00

0.1 0 ~ 0.2 0 0.1 0 ~ 0.2 0 0.1 0 ~ 0.2 00.1 0 ~ 0.2 0 0.1 0 ~ 0.2 0

0.1 0 ~ 0.2 00.1 0 ~ 0.2 00.1 0 ~ 0.2 00.1 0 ~ 0.2 00.1 0 ~ 0.2 0

0.1 0 ~ 0.2 00.1 0 ~ 0.2 00.12 ~ 0.220.12 ~ 0.220.12 ~ 0.22

0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.22

0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.22

0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.14 ~ 0.240.14 ~ 0.24

0.14 ~

0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.24

0.14 ~ 0.240.14 ~ 0.24

0.11 0 0.140.160.190.22

0.240.250.280.320.35

0.380.420.460.5 00.54

0.590.620.680.750.78

0.820.891.1 01.1 01.2 0

1.3 01.4 0 1.5 01.7 01.8 0

2.1 0 2.3 0 2.8 0 3.1 0 3.7 0

4.5 0 5.4 0

SSG2- 14SSG2- 15SSG2- 16SSG2- 17SSG2- 18

SSG2- 19SSG2- 20SSG2- 21SSG2- 22SSG2- 23

SSG2- 24SSG2- 25SSG2- 26SSG2- 27SSG2- 28

SSG2- 29SSG2- 30SSG2- 32SSG2- 34SSG2- 35

SSG2- 36SSG2- 38SSG2- 40SSG2- 42SSG2- 44

SSG2- 45SSG2- 48SSG2- 50SSG2- 55SSG2- 56

SSG2- 60SSG2- 64SSG2- 70SSG2- 75SSG2- 80

SSG2- 90SSG2-100

00 9.0050 10.5 000 10.09 00 11.55 0 0 13.11 0

0 29.2 00 32.670 30.160 33.150 36.18

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Ground Spur Gears

Backlash (mm)NOTE 3Bending strengthSurface durability

ShapeBending strength

Allowable torque (N.m) NOTE 2 Weight(kgf)

CatalogNo.

Allowable torque (kgf.m)

Surface durability

Specifications

Precision grade

Gear teeth

Pressure angleMaterial

Heat treatment

Standard full depth

20

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground

GroundBore

JIS N7 grade (JIS B1702-1:1998)OLD JIS 3 grade (JIS B1702:1976)

Datum reference surfacefor gear grinding

Possible except tooth are

8/14/2019 SSG Ground Spur Gears

7/12

SSG2.5-45SSG2.5-48SSG2.5-50SSG2.5-55SSG2.5-56

SSG2.5-14SSG2.5-15SSG2.5-16SSG2.5-17SSG2.5-18

SSG2.5-19SSG2.5-20SSG2.5-21SSG2.5-22SSG2.5-23

SSG2.5-24SSG2.5-25SSG2.5-26SSG5.5-27SSG2.5-28

SSG2.5-29SSG2.5-30SSG2.5-32SSG2.5-34SSG2.5-35

SSG2.5-36SSG2.5-38SSG2.5-40SSG2.5-42SSG2.5-44

SSG2.5-60SSG2.5-70SSG2.5-75SSG2.5-80

2.52.52.52.52.5

2.52.52.52.52.5

2.52.52.52.52.5

2.52.52.52.52.5

2.52.52.52.52.5

2.52.52.52.52.5

2.52.52.52.5

1415161718

1920212223

2425262728

2930323435

3638404244

4548505556

60707580

1515151515

1518181818

1820202020

2020202020

2020252525

2525252525

25252525

2830323538

3940424446

4850545660

6065707070

7070707575

7575808080

80809090

0 35 .0 0 37.50 40 .00 42.50 45 .0

0 47.50 50 .0 0 52.50 55 .00 57.5

0 60 .00 62.50 65 .0 0 67.5 0 70 .0

0 72.50 75 .0 0 80 .0 0 85 .0 0 87.5

0 90 .0 0 95 .0 100 .0 105 .0110 .0

112.5120 .0 125 .0137.5140 .0

150 .0 175 .0187.5200 .0

0 40 .00 0 42.5 0 0 45 .00 0 47.5 0 0 50 .00

0 52.5 0 0 55 .0 00 57.5 00 60 .000 62.5 0

0 65 .000 67.5 00 70 .250 72.5 00 75 .00

0 77.5 0 0 80 .000 85 .00 0 90 .000 92.5 0

0 95 .00100 .00105 .00 110 .00115 .00

117.5 0125 .00 130 .00142.5 0 145 .00

155 .00180 .00192.5 0205 .00

2525252525

2525252525

2525252525

2525252525

2525252525

2525252525

25252525

1818181818

1818181818

1818181818

1818181818

1818181818

1818181818

18181818

4343434343

4343434343

4343434343

4343434343

4343434343

4343434343

43434343

Module 2.5

52

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

SSG Ground Spur Gears 2.5Module

Gears

CatalogNo.

Module No. of teeth Web OWeb thicknessTotal lengthHub widthFace widthNOTE 1Outside dia.Pitch dia.Hub dia.Borem z A H7 B C D E F G H I

8/14/2019 SSG Ground Spur Gears

8/12

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1

0 76.650 82.7 00 88.820 95 .00 101.2 0

107.5 0 113.9 0 120.1 0 126.6 0 133 .00

139.4 0 145.9 0 159 .00 172.2 0 178.8 0

185.4 0 198.8 0 195.8 0 208.2 0 220.7 0

226.9 0 245.8 0 258.4 0 290 .00296.4 0

321.9 0 358.3 0 388.1 0 418.2 0

0 29.410 32.940 36.680 40.630 44.8 0

0 49.180 53.780 58.370 63.150 68.15

0 73.340 78.740 90.13102.4 0 108.8 0

115.4 0 129.3 0 133 .00147.3 0 162.5 0

170.4 0 195.3 0 212.9 0 259.8 0 269.7 0

311.4 0 398.7 0 460.6 0 526.5 0

(0 7.816 )(0 8.433 )(0 9.057 )(0 9.687 )(10.32 0 )

(10.96 )(11.61 )(12.25 )(12.91 )(13.56 )

(14.22 )(14.88 )(16.21 )(17.56 )(18.23 )

(18.91 )(20.27 )(19.97 )(21.23 )(22.51 )

(23.14 )(25.06 )(26.35 )(29.57 )(30.22 )

(32.82 )(36.54 )(39.58 )(42.64 )

(0 2.999 )(0 3.359 )(0 3.74 )(0 4.143 )(0 4.568 )

(0 5.015 )(0 5.484 )(0 5.952 )(0 6.44 0 )(0 6.949 )

(0 7.479 )(0 8.029 )(0 9.191 )(0 0.44 )(0 1.09 )

(11.7 )(13.18 )(13.56 )(15.02 )(16.57 )

(17.38 )(19.92 )(21.71 )(26.49 )(27.5 )

(31.75 )(40.66 )(46.97 )(53.69 )

0.1 0 ~ 0.2 0 0.1 0 ~ 0.2 0 0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.22

0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.22

0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.22

0.12 ~ 0.220.12 ~ 0.220.14 ~ 0.240.14 ~ 0.240.14 ~ 0.24

0.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.24

0.14 ~

0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.24

0.460.480.540.6 0 0.66

0.730.780.870.951.1 0

1.1 0 1.2 0 1.4 0 1.6 0 1.7 0

1.7 0 1.8 0 1.9 0 2.2 0 2.3 0

2.4 0 2.7 0 3.0 0 3.5 0 3.6 0

4.0 0 5.3 06.2 0 6.9 0

SSG2.5-19SSG2.5-20SSG2.5-21SSG2.5-22SSG2.5-23

SSG2.5-24SSG2.5-25SSG2.5-26SSG5.5-27SSG2.5-28

SSG2.5-29SSG2.5-30SSG2.5-32SSG2.5-34SSG2.5-35

SSG2.5-36SSG2.5-38SSG2.5-40SSG2.5-42SSG2.5-44

SSG2.5-45SSG2.5-48SSG2.5-50SSG2.5-55SSG2.5-56

SSG2.5-60SSG2.5-70SSG2.5-75SSG2.5-80

S1S1S1S1S1

0 47.530 53.170 58.910 64.740 70.66

0 14.890 17.390 20.070 22.980 26.09

(0 4.847 )(0 5.422 )(0 6.007 )(0 6.602 )(0 7.205 )

(0 1.518 )(0 1.773 )(0 2.047 )(0 2.343 )(0 2.66 )

0.1 0 ~ 0.2 0 0.1 0 ~ 0.2 00.1 0 ~ 0.2 0 0.1 0 ~ 0.2 00.1 0 ~ 0.2 0

0.220.260.3 00.360.41 0

SSG2.5-14SSG2.5-15SSG2.5-16SSG2.5-17SSG2.5-18

53

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Ground Spur Gears

Backlash (mm)NOTE 3Bending strength Surface durability

ShapeBending strength

Allowable torque (N.m) NOTE 2 Weight(kgf)

CatalogNo.

Allowable torque (kgf.m)

Surface durability

Specifications

Precision grade

Gear teeth

Pressure angleMaterial

Heat treatment

Standard full depth

20

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground

GroundBore

JIS N7 grade (JIS B1702-1:1998)OLD JIS 3 grade (JIS B1702:1976)

Datum reference surfacefor gear grinding

Possible except tooth are

8/14/2019 SSG Ground Spur Gears

9/12

SSG3-45SSG3-48SSG3-50SSG3-55SSG3-56

SSG3-14SSG3-15SSG3-16SSG3-17SSG3-18

SSG3-19SSG3-20SSG3-21SSG3-22SSG3-23

SSG3-24SSG3-25SSG3-26SSG3-27SSG3-28

SSG3-29SSG3-30SSG3-32SSG3-34SSG3-35

SSG3-36SSG3-38SSG3-40SSG3-42SSG3-44

SSG3-60SSG3-70SSG3-75SSG3-80

33333

33333

33333

33333

33333

33333

3333

1415161718

1920212223

2425262728

2930323435

3638404244

4548505556

60707580

1616161616

1620202020

2020202020

2025252525

2525252525

2525303030

30303030

0 340 360 380 370 40

0 450 500 520 540 56

0 580 600 620 650 70

0 700 750 750 750 80

0 800 800 800 800 80

0 800 850 850 900 90

100100100100

0 420 450 480 510 54

0 570 600 630 660 69

0 720 750 780 810 84

0 870 900 96102105

108114120126132

135144150165168

180210225240

0 480 510 540 570 60

0 630 660 690 720 75

0 780 810 840 870 90

0 930 96102108111

114120126132138

141150156171174

186216231246

3030303030

3030303030

3030303030

3030303030

3030303030

3030303030

30303030

2020202020

2020202020

2020202020

2020202020

2020202020

2020202020

20202020

5050505050

5050505050

5050505050

5050505050

5050505050

5050505050

50505050

54

NOTE 1 : Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

SSG Ground Spur Gears 3Module

Gears

Module 3

CatalogNo.

Module No. of teeth Web OWeb thicknessTotal lengthHub widthFace widthNOTE 1Outside dia.Pitch dia.Hub dia.Borem z A H7 B C D E F G H I

8/14/2019 SSG Ground Spur Gears

10/12

SSG3-60SSG3-70SSG3-75SSG3-80

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1

132.5 0 142.9 0 153.5 0 164.2 0 174.9 0

185.7 0196.6 0207.6 0218.7 0 229.8 0

240.9 0252.2 0253.6 0274.6 0285.2 0

295.8 0316.9 0338.3 0359.8 0381.4 0

392.2 0 424.7 0 446.5 0 465.3 0 475.5 0

516.4 0619.2 0670.8 0722.5 0

0 51.610 57.810 64.390 71.340 78.67

0 86.390 94.48102.6 0111 .00119.8 0

129 .00138.5 0146.4 0166.3 0176.8 0

187.6 0210.3 0234.4 0259.9 0286.4 0

300.1 0343.1 0373.6 0423.2 0439.4 0

507.5 0698.7 0805.7 0920.7 0

13.51 014.57 015.65 016.74 017.84 0

18.94 020.05 021.17 022.3 0023.43 0

24.57 025.72 025.86 028 .00029.08 0

30.16 032.32 034.5 0036.69 038.89 0

39.99 043.31 045.53 047.45 048.49 0

52.66 063.14 068.4 0073.68 0

0 5.2630 5.8950 6.5660 7.2750 8.022

0 8.8090 9.63410.46 011.32 012.22 0

13.15 014.12 014.93 016.96 018.03 0

19.13 021.44 023.9 0026.5 0029.2 00

30.6 0034.99 038.1 0043.15 044.81 0

51.75 071.25 082.16 093.89 0

0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.22

0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.12 ~ 0.22

0.12 ~ 0.220.12 ~ 0.220.12 ~ 0.220.14 ~ 0.240.14 ~ 0.24

0.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.24

0.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.24

0.14 ~

0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.24

0 0.770 0.850 0.950 1.0 0 0 1.2 0

0 1.3 0 0 1.4 0 0 1.5 0 0 1.6 0

0 1.8 .00

0 1.9 0 0 2.0 0 0 2.2 00 2.4 0 0 2.6 0

0 2.8 .000 3 .000 3.3 0 0 3.5 00 3.8 0

0 4.0 00 4.5 00 4.8 00 5.8 00 6 .00

0 7.0 00 9.1 010.3 011.6 0

SSG3-19SSG3-20SSG3-21SSG3-22SSG3-23

SSG3-24SSG3-25SSG3-26SSG3-27SSG3-28

SSG3-29SSG3-30SSG3-32SSG3-34SSG3-35

SSG3-36SSG3-38SSG3-40SSG3-42SSG3-44

SSG3-45SSG3-48SSG3-50SSG3-55SSG3-56

S1S1S1S1S1

0 82.140 91.88101.8 0111.9 0122.1 0

0 26.110 30.490 35.230 40.320 45.79

0 8.3760 9.36910.38 011.41 012.45 0

0 2.6630 3.1090 3.5920 4.1120 4.669

0.1 0 ~ 0.2 0 0.1 0 ~ 0.2 0 0.1 0 ~ 0.2 00.12 ~ 0.220.12 ~ 0.22

0 0.390 0.460 0.530 0.57

0 0.66 0

SSG3-14SSG3-15SSG3-16SSG3-17SSG3-18

55

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Backlash (mm)NOTE 3Bending strengthSurface durability

ShapeBending strength

Allowable torque (N.m) NOTE 2 Weight(kgf)

CatalogNo.

Allowable torque (kgf.m)

Surface durability

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angleMaterial

Heat treatment

Standard full depth

20

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground

GroundBore

JIS N7 grade (JIS B1702-1:1998)OLD JIS 3 grade (JIS B1702:1976)

Datum reference surfacefor gear grinding

Possible except tooth are

8/14/2019 SSG Ground Spur Gears

11/12

SSG4-44SSG4-45SSG4-48SSG4-50SSG4-55

SSG4-14SSG4-15SSG4-16SSG4-18SSG4-20

SSG4-22SSG4-24SSG4-25SSG4-28SSG4-30

SSG4-32SSG4-35SSG4-36SSG4-40SSG4-42

SSG4-56SSG4-60

44444

44444

44444

44444

44

1415161820

2224252830

3235364042

4445485055

5660

2020202020

2020202020

2525252525

3030303030

3030

0 400 450 500 600 65

0 700 750 800 850 90

0 900 900 900 900 90

0 900 90100100100

110110

0 560 600 640 720 80

0 880 96100112120

128140144160168

176180192200220

224240

0 640 680 720 800 88

0 96104108120128

136148152168176

184188200208228

232248

4040404040

4040404040

4040404040

4040404040

4040

2525252525

2525252525

2525252525

2525252525

2525

6565656565

6565656565

6565656565

6565656565

6565

56

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

SSG Ground Spur Gears 4Module

Gears

Module 4

CatalogNo.

Module No. of teeth Web OWeb thicknessTotal lengthHub widthFace widthNOTE 1Outside dia.Pitch dia.Hub dia.Borem z A H7 B C D E F G H I

8/14/2019 SSG Ground Spur Gears

12/12

SSG4-14SSG4-15SSG4-16SSG4-18SSG4-20

SSG4-56SSG4-60

SSG4-44SSG4-45SSG4-48SSG4-50SSG4-55

S1S1S1S1S1

S1S1S1S1S1

S1S1S1S1S1

S1S1

0 389.10 406.40 430.30 502.80 551.8

0 601.10 676 .00 701 .00 744.70 792 .0

0 839.40 863.20 934.80 982.61103 .0

1127 .01224 .0

0 173.8 00 194.4 0 0 212.7 00 270.1 00 312.4 0

0 358.1 00 431.5 00 457.2 00 529.2 00 585.8 0

0 645.7 00 676.7 00 774.3 00 842.4 01026 .00

1064 .001228 .00

0 39.680 41.440 43.880 51.270 56.27

0 61.3 00 68.930 71.480 75.940 80.76

0 85.6 00 88.020 95.32100.2 0112.5 0

114.9 0124.8 0

0 17.72 00 19.82 00 21.69 00 27.54 00 31.86 0

0 36.52 00 44 .0000 46.66 00 53.96 00 59.74 0

0 65.84 00 69 .0000 78.96 00 85.9 00104.6 00

108.5 00125.2 00

0.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.16 ~ 0.260.16 ~ 0.26

0.16 ~ 0.260.16 ~ 0.260.16 ~ 0.260.16 ~ 0.260.16 ~ 0.26

0.16 ~ 0.260.16 ~ 0.260.16 ~ 0.260.16 ~ 0.260.16 ~ 0.26

0.16 ~ 0.260.16 ~ 0.26

0 2.5 0 0 3 .000 3.3 0 0 4.1 0 0 4.7 0

0 5.1 .000 5.8 0 0 6.1 0 0 7.3 0 0 8 .00

0 8.5 0 0 8.9 0 10.3 011.1 013.2 0

13.9 0 15.7 0

SSG4-22SSG4-24SSG4-25SSG4-28SSG4-30

SSG4-32SSG4-35SSG4-36SSG4-40SSG4-42

S1S1S1S1S1

0 194.70 217.80 241.30 289.40 338.7

00 63.4300 74.0700 85.6 00 111.3 00 140.7 0

0 19.850 22.210 24.610 29.510 34.54

00 6.46800 7.55300 8.7290 11.35 00 14.35 0

0.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.240.14 ~ 0.24

0 0.860 1 .00 0 1.2 0 0 1.7 0 0 2.1 0

This picture is an example of poor tooth

contact of an SSG3-30 gear which had only30% of the gear tooth in proper contact. Inthis example the gear oil used is equivalentto JIS gear oil category 2, No.3, and thedesign conditions were 417 N .m load torqueat 278 min -1 (12 kW) which was 1.5 times theallowable bending strength and 3 times theallowable surface durability torque.The pitting occurred due to poor tooth contactarea after 60 hours of continuous operation.

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Ground Spur Gears

Backlash (mm)NOTE 3Bending strengthSurface durability

ShapeBending strength

Allowable torque (N.m) NOTE 2 Weight(kgf)

CatalogNo.

Allowable torque (kgf.m)

Surface durability

Specifications

Precision grade

Gear teeth

Pressure angleMaterial

Heat treatment

Standard full depth

20

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground

GroundBore

JIS N7 grade (JIS B1702-1:1998)OLD JIS 3 grade (JIS B1702:1976)

Datum reference surfacefor gear grinding

Possible except tooth are