h8 - khk gears - gear manufacturer · lead angle hand thread shape bore hub dia. pitch dia. outside...

390 391

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You can download CAD data (DXF format) of KHK Products from the Web Catalog.

Steel WormsModule 0.5、0.8SW

Specifications

Precision grade KHK W 001 grade 4

Referencesection of gear Normal plane

Gear teeth Standard full depth

Normalpressure angle 20°

Material S45C

Heat treatment ―

Tooth hardness (less than 194HB)

Surface treatment Black oxide coating

R

S

N OL

P

W2

Bronze Worm WheelsModule 0.5、0.8BG

Specifications





Material CAC502 (formerly JIS PBC2）

Heat treatment ―

Tooth hardness ―

J

GE F

A B C D’

L

HAT

Catalog No.Reduction

ratioNormalmodule

No. of teeth

Number of starts

Helix angle Hand thread ShapeBore Hub dia. Pitch dia. Throat dia. Outside dia. Face width

AH7 B C D D' EBG0.8-20R1BG0.8-20R2BG0.8-30R1BG0.8-30R2BG0.8-40R1

2010301540

m0.8

2020303040

12121

3°17'6°34'3°17'6°34'3°17'

RRRRR

HAHAHAHAHA

55556

1212181820

16.0316.1124.0424.1632.05

―――――

17.617.625.625.633.6

99999

BG0.8-50R1BG0.8-60R1

5060

5060

11

3°17'3°17'

RR

HAHA

88

2525

40.0648.08

――

41.649.6

99

Catalog No. Normal module

Numberof starts

Lead angle Hand thread ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width (R) Hub width (L)

LH8 M N O P Q Q'SW0.5-R1SW0.5-R2 m0.5 1

22°36'5°13'

RR

W2W2

55

――

1111

1212

(10)(10)

――

――

SW0.8-R1SW0.8-R2 m0.8 1

23°17'6°34'

RR

W2W2

66

――

1414

15.615.6

(18)(18)

――

――

J

GE F

A B C D’

HA


ratioNormalmodule

No. of teeth

Number of starts


AH7 B C D D' EBG0.5-20R1BG0.5-20R2BG0.5-30R1BG0.5-30R2BG0.5-40R1

2010301540

m0.5

2020303040

12121

2°36'5°13'2°36'5°13'2°36'

RRRRR

HATHATHATHATHAT

44445

99

121215

10.0110.0415.0215.0620.02

―――――

1111161621

55555

BG0.5-50R1BG0.5-60R1

5060

5060

11

2°36'2°36'

RR

HATHAT

55

2025

25.0330.03

――

2631

55

[Caution on Product Characteristics]


① For W2-shaped products, a set screw is included. When setting up the mating wheel, make sure no friction occurs within the set screw.

② These worms produce axial thrust forces. See Page 362 for more details.

① Worm Wheels are profile shifted to create the proper center distance.② For products with a tapped hole, a set screw is included.③ The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please

see Page 358 for more details.④ If bore size is less than φ 4, the diameter tolerance is H8. If bore size is φ 5 or φ 6, and the hole length exceeds 3 times

the diameter, the tolerance is also H8.

[Caution on Secondary Operations] ① Please read “Caution on Performing Secondary Operations” (Page 362) when performing modi-fications and/or secondary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.

② Gear tooth hardening of the worm reduces the precision (introduces errors in the lead and pressure angles). Avoid heat treating as it will create bad tooth contact causing abrasion of the wheel.

[Caution on Secondary Operations] ① Please read “Caution on Performing Secondary Operations” (Page 362) when performing modifications and/or second-ary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.

Hub width Total length Mounting distance Set Screw Allowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)Catalog No.

F G J Size L 30 rpm 100 rpm 300 rpm 600 rpm 900 rpm 1200 rpm

NOTE 1 : Allowable torque based on worm speed (rpm)

Steel Worms

SW

Bronze Worm Wheels

77777

1212121212

10.510.5131315.5

M3M3M3M3M4

3.53.53.53.53.5

0.27 0.28 0.58 0.59 0.99

0.23 0.23 0.50 0.49 0.85

0.19 0.18 0.41 0.39 0.71

0.15 0.15 0.34 0.32 0.60

0.14 0.13 0.30 0.29 0.54

0.13 0.12 0.28 0.26 0.50

0~0.160~0.160~0.160~0.160~0.16

0.0061 0.0061 0.014 0.014 0.023

BG0.5-20R1BG0.5-20R2BG0.5-30R1BG0.5-30R2BG0.5-40R1

77

1212

1820.5

M4M4

3.53.5

1.50 2.10

1.28 1.80

1.08 1.52

0.92 1.31

0.83 1.19

0.77 1.09

0~0.160~0.16

0.039 0.059

BG0.5-50R1BG0.5-60R1

Hub width Total length Mounting distance Allowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)Catalog No.

F G J 30 rpm 100 rpm 300 rpm 600 rpm 900 rpm 1200 rpm


99999

1818181818

1515191923

1.05 1.06 2.23 2.24 3.81

0.880.861.891.873.24

0.71 0.66 1.53 1.46 2.67

0.58 0.54 1.29 1.20 2.26

0.52 0.48 1.15 1.07 2.02

0.48 0.44 1.06 0.98 1.87

0.04~0.220.04~0.220.04~0.220.04~0.220.04~0.22

0.0230.0230.0550.0550.087

BG0.8-20R1BG0.8-20R2BG0.8-30R1BG0.8-30R2BG0.8-40R1

99

1818

2731

5.76 8.06

4.906.88

4.07 5.73

3.47 4.90

3.13 4.46

2.90 4.12

0.04~0.220.04~0.22

0.130.18

BG0.8-50R1BG0.8-60R1

Total length Set Screw Weight

(kg)Catalog No.

R Size S1818

M3M3

33

0.010 0.010

SW0.5-R1SW0.5-R2

3030

M4M4

55

0.0290.029

SW0.8-R1SW0.8-R2

BG

392 393

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GE F

J

A B D’DC

L

① Worm Wheels are profile shifted to create the proper center distance.② The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see Page 358 for more details.③ If bore size is less than φ 4, the diameter tolerance is H8. If bore size is φ 5 or φ 6, and the hole length exceeds 3 times the diameter, the tolerance is also H8.

Steel WormsModule 1、1.25SW

R

S

N OL

P

W2

Bronze Worm Wheels & Gray Iron Worm WheelsModule 1、1.25BG・CG


(kg)Catalog No.

R Size S3232

M4M4

55

0.0430.043

SW1-R1SW1-R2

3737

M5M5

55

0.0850.085

SW1.25-R1SW1.25-R2


Number of starts


LH7(H8) M N O P Q Q'SW1-R1SW1-R2 m1 1

23°35'7°11'

RR

W2W2

6 H8

6 H8――

1616

1818

(20)(20)

――

――

SW1.25-R1SW1.25-R2 m1.25 1

23°25'6°50'

RR

W2W2

88

――

2121

23.523.5

(25)(25)

――

――

[Caution on Product Characteristics] ① For W2-shaped products, a set screw is included. When setting up the mating wheel, make sure no friction occurs within the set screw.② These worms produce axial thrust forces. See Page 362 for more details.


[Caution on Secondary Operations] ① Please read “Caution on Performing Secondary Operations” (Page 362) when performing modi-fications and/or secondary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.


[Caution on Secondary Operations] ① Please read “Caution on Performing Secondary Operations” (Page 362) when performing modifications and/or secondary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.

Steel Worms

SW

Bronze Worm Wheels & Gray Iron Worm Wheels

GE F

J

A B D’DC

H1

Specifications





Material S45C

Heat treatment ―



BG・CG

Specifications

Catalog No. BG CGPrecision grade KHK W 002 grade 4 ＊Referencesection of gear Normal plane



Material CAC502(formerly JIS PBC2) FC200 ＊＊

Heat treatment ―Tooth hardness ―

＊ The precision grade of J Series products is equiva-lent to the value shown in the table.

＊＊ FC200’s tensile strength (200N/mm2) is derived from test specimens and differs according to the product shape.


JAllowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)30 rpm 100 rpm 300 rpm 600 rpm 900 rpm 1200 rpm

Series

Bore H7

Keyway Js9

Screw sizeCatalog No.

H1T

GE F

J

A B D’DC

L

H1K

BG1-20R1BG1-20R2BG1-30R1BG1-30R2BG1-40R1BG1-50R1

201030154050

202030304050

121211

3°35'7°11'3°35'7°11'3°35'3°35'

R H1

666688

161620202630

20.0520.1630.0730.2440.0850.1

222232324252

232333334353

10 10 20

181823232833

1.89 1.90 4.00 4.03 6.85

10.3

1.58 1.54 3.38 3.35 5.79 8.76

1.26 1.18 2.74 2.62 4.76 7.27

1.04 0.97 2.29 2.14 4.03 6.18

0.92 0.85 2.05 1.91 3.61 5.58

0.85 0.78 1.87 1.74 3.31 5.14

0.06~0.24

0.0430.0430.0890.0890.150.23

BG1.25-20R1BG1.25-20R2BG1.25-30R1BG1.25-30R2BG1.25-40R1BG1.25-50R1

201030154050

202030304050

121211

3°25'6°50'3°25'6°50'3°25'3°25'

666688

202025253040

25.0425.1837.5737.7750.0962.61

27.527.5404052.565

28.7528.7541.2541.2553.7566.25

11 9 20

232329.2529.2535.541.75

3.19 3.19 6.75 6.77

11.5 17.4

2.65 2.58 5.67 5.60 9.71

14.7

2.10 1.96 4.56 4.33 7.92

12.1

1.72 1.60 3.81 3.54 6.70

10.3

1.53 1.40 3.40 3.16 5.98 9.25

1.40 1.27 3.09 2.85 5.47 8.49

0.08~0.26

0.0700.0700.150.150.240.40

CG1-60R1CG1-80R1CG1-100R1CG1-120R1

6080

100120

6080

100120

1 3°35' 10

30354040

60.1280.16

100.2120.24

6282

102122

6383

103123

10 10 20

38485868

8.6914.721.930.5

7.3912.619.026.7

6.1410.516.022.5

5.249.11

13.919.6

4.788.30

12.718.0

4.397.72

11.916.7

0.06~0.24

0.250.430.660.91


ratioNo. of teeth

Number of starts

Helix angleHand thread

Shape AH7 B C D D' E F G

BG1-20R1 J Bore H1T BG1-20R2 J Bore H1T BG1-30R1 J Bore H1T H1T BG1-30R2 J Bore H1T H1T BG1-40R1 J Bore H1T H1K H1K BG1-50R1 J Bore H1T H1K H1K H1K H1K H1K H1KBG1.25-20R1 J Bore H1T H1T BG1.25-20R2 J Bore H1T H1T BG1.25-30R1 J Bore H1T H1T H1K H1K BG1.25-30R2 J Bore H1T H1T H1K H1K BG1.25-40R1 J Bore H1T H1K H1K H1K H1K H1K H1K BG1.25-50R1 J Bore H1T H1K H1K H1K H1K H1K H1K H1K H1K H1K H1K CG1-60R1 J Bore H1K H1K H1K H1K H1K H1KCG1-80R1 J Bore H1K H1K H1K H1K H1K H1K H1K H1KCG1-100R1 J Bore H1K H1K H1K H1K H1K H1K H1K H1K H1K H1K CG1-120R1 J Bore H1K H1K H1K H1K H1K H1K H1K H1K H1K H1K

6 8 10 12 14 15 16 17 18 19 20 22 ― 4 × 1.8 5 × 2.3 6 × 2.8

M4 M5 M4 M5

① As available-on-request products, requires a lead-time for shipping within 2 working-days (excludes the day ordered), after placing an order. Please allow additional shipping time to get to your local distributor.② Number of products we can process for one order is 1 to 20 units. For quantities of 21 or more pieces, we need to quote price and lead time.③ Keyways are made according to JIS B1301 standards, Js9 tolerance.④ Certain products which would otherwise have a very long tapped hole are counterbored to reduce the length of the tap.⑤ For products having a tapped hole, a set screw is included.⑥ When using H1T set screws for fastening gears to a shaft, only use this method for light loads. For secure fastening,

please use dowel pins in combination.

[Caution on J series]

To order J Series products, please specify; Catalog No. + J + BORE＊ The product shapes of J Series items are identified by background color.

L = Half of hub length (F) L = Half of hub length (F)

AH7 Bore

B Hub dia.

C Pitch dia.

D Throat dia.

D' Outside dia.

E Face width

F Hub width

G Total length

（H） Web thickness

（ I ） Web O.D.

J Mounting distance

394 395

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Steel WormsModule 1.5SW

R

P Q

L M N O

W1

Bronze Worm Wheels & Gray Iron Worm WheelsModule 1.5BG・CG

Total length Keyway Set Screw Weight

(kg)Catalog No.

● : J Series (Available-on-request)R Width×Depth Size S

40――

4 x 1.8

―M5M4

―55

0.120.120.11

SW1.5-R1

•SW1.5-R1J8

•SW1.5-R1J10

40――

4 x 1.8

―M5M4

―55

0.120.120.11

SW1.5-R2

•SW1.5-R2J8

•SW1.5-R2J10

Catalog No.● : J Series (Available-on-request)

Normal module

Number of starts


LH7 M N O P Q Q'SW1.5-R1

•SW1.5-R1J8

•SW1.5-R1J10m1.5

1 3°26' RW1W1TW1K

88

1020 25 28 30 10 ―

SW1.5-R2

•SW1.5-R2J8

•SW1.5-R2J102 6°54' R

W1W1TW1K

88

1020 25 28 30 10 ―

[Caution on Secondary Operations] ① Please read “Caution on Performing Secondary Operations” (62) when performing modifications and/or second-ary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.

[Caution on Product Characteristics] ① These worms produce axial thrust forces. See Page 362 for more details.

[Caution on Product Characteristics] ① Worm Wheels are profile shifted to create the proper center distance.② The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see Page 358 for more details.

Series Steel Worms

SW

R

P Q

L M N O

S

W1T

R

P Q

L M N O

S

W1K


Specifications

Precision grade KHK W 001 grade 4 ＊Referencesection of gear Normal plane



Material S45C

Heat treatment ―



＊ The precision grade of J Series products is equivalent to the value shown in the table.


② Gear tooth hardening of the worm reduces the precision (introduces errors in the lead and pressure angles). Avoid heat treating as it will create bad tooth con-tact causing abrasion of the wheel.

[Caution on J series] ① As available-on-request products, requires a lead-time for shipping within 2 working-days (excludes the day ordered), after placing an order. Please allow additional shipping time to get to your local distributor.

② Number of products we can process for one order is 1 to 20 units. For quantities of 21 or more pieces, we need to quote price and lead time.③ Keyways are made according to JIS B1301 standards, Js9 tolerance.④ Areas of products which have been re-worked will not be black oxide coated.⑤ For products having a tapped hole, a set screw is included.

BG・CG

Bore H7

Keyway Js9


8 10 12 14 15 16 17 18 19 20 22 25 28 30 ― 4 × 1.8 5 × 2.3 6 × 2.8 8 × 3.3

M5 M4 M5 M6BG1.5-20R1BG1.5-20R2BG1.5-30R1BG1.5-30R2BG1.5-40R1BG1.5-50R1

201030154050

202030304050

121211

3°26'6°54'3°26'6°54'3°26'3°26'

R H1

88

10101212

222230303040

30.0530.2245.0845.3360.1175.13

333348486378

34.534.549.549.564.579.5

121212121214

10

222222222224

27.527.5353542.550

4.76 4.75

10.1 10.1 17.2 30.4

3.96 3.85 8.47 8.37

14.5 25.6

3.10 2.89 6.72 6.40

11.7 20.8

2.56 2.38 5.67 5.26 9.96

17.8

2.27 2.08 5.03 4.67 8.86

16.0

2.06 1.87 4.55 4.20 8.04

14.60.08~0.26

0.100.100.220.220.350.65

CG1.5-30R1CG1.5-40R1CG1.5-50R1CG1.5-60R1CG1.5-80R1CG1.5-100R1

3040506080

100

3040506080

100

1 3°26'

101212121515

303040405050

45.0860.1175.1390.16

120.22150.27

48637893

123153

49.564.579.594.5

124.5154.5

121214141414

222224242424

3542.55057.572.587.5

6.0410.318.225.543.164.4

5.088.71

15.421.636.855.6

4.037.01

12.517.630.145.8

3.405.98

10.715.126.340.1

3.025.319.59

13.723.836.4

2.734.838.74

12.421.933.6

0.180.280.530.731.281.93

GE F

J

A B D’DC

L

GE F

J

A B D’DC

AH7 Bore

B Hub dia.

C Pitch dia.

D Throat dia.

D' Outside dia.

E Face width

F Hub width

G Total length


（ I ） Web O.D.

J Mounting distance

Specifications






＊ The precision grade of J Series products is equiva-lent to the value shown in the table.


Series

H1T

GE F

J

A B D’DC

L

H1K

NOTE 1 : Allowable torque based on worm spee (rpm)

JAllowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)30 rpm 100 rpm 300 rpm 600 rpm 900 rpm 1200 rpmCatalog No.

Reduction ratio

No. of teeth

Number of starts

Helix angleHand thread


BG1.5-20R1 J BORE H1T H1K BG1.5-20R2 J BORE H1T H1K BG1.5-30R1 J BORE H1K H1K H1K H1K H1K H1K BG1.5-30R2 J BORE H1K H1K H1K H1K H1K H1K BG1.5-40R1 J BORE H1K H1K H1K H1K H1K BG1.5-50R1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1K CG1.5-30R1 J BORE H1K H1K H1K H1K H1K H1K CG1.5-40R1 J BORE H1K H1K H1K H1K H1K CG1.5-50R1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1K CG1.5-60R1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1K CG1.5-80R1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1K H1K CG1.5-100R1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1K H1K

① As available-on-request products, requires a lead-time for shipping within 2 working-days (excludes the day ordered), after placing an order. Please allow additional shipping time to get to your local distributor.② Number of products we can process for one order is 1 to 20 units. For quantities of 21 or more pieces, we need to quote price and lead time.③ Keyways are made according to JIS B1301 standards, Js9 tolerance.④ Certain products which would otherwise have a very long tapped hole are counterbored to reduce the length of the tap.⑤ For products having a tapped hole, a set screw is included.⑥ When using H1T set screws for fastening gears to a shaft, only use this method for applications with the usage for light

loads. For secure fastening, please use dowel pins in combination.


H1


L = 5mm L = 5mm

396 397

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rod

ucts

BG2-20R1BG2-20R2

2010

20

12

3°42'7°25'

RH1

12

33

40.0840.34

44 46

22 13 35

― ― 35.5

12.3 12.3

10.2 10.0

8.00 7.51

6.59 6.15

5.78 5.32

5.25 4.80

0.10~0.28

0.33BG2-20L1BG2-20L2

2010

12

3°42'7°25'

L40.0840.34

12.3 12.3

10.2 10.0

8.00 7.51

6.59 6.15

5.78 5.32

5.25 4.80

CG2-20R1CG2-20R2CG2-30R1CG2-30R2CG2-40R1

2010301540

2020303040

12121

3°42'7°25'3°42'7°25'3°42' R

H1

3333404045

40.0840.3460.1360.5180.17

4444646484

4646666686

― ―

35.535.545.545.555.5

7.387.40

15.615.726.7

6.156.00

13.113.122.5

4.804.51

10.49.96

18.1

3.953.698.748.15

15.4

3.473.197.707.18

13.55

3.152.886.966.45

12.3

0.27 0.270.570.570.96

CG2-50R1CG2-50R2CG2-60R1

502560

505060

121

3°42'7°25'3°42'

HB484860

100.21100.84120.25

104104124

106106126

(7)(88)(88)

(108)

65.565.575.5

40.340.756.4

34.134.047.9

27.626.938.9

23.622.433.3

21.019.629.9

19.117.827.2

1.011.011.44

CG2-20L1CG2-20L2CG2-30L1CG2-30L2CG2-40L1

2010301540

2020303040

12121

3°42'7°25'3°42'7°25'3°42' L

H1

3333404045

40.0840.3460.1360.5180.17

4444646484

4646666686

― ―

35.535.545.545.555.5

7.387.40

15.615.726.7

6.156.00

13.113.122.5

4.804.51

10.49.96

18.1

3.953.698.748.15

15.4

3.473.197.707.18

13.55

3.152.886.966.45

12.3

0.270.270.570.570.96

CG2-50L1CG2-50L2CG2-60L1

502560

505060

121

3°42'7°25'3°42'

HB484860

100.21100.84120.25

104104124

106106126

(7)(88)(88)

(108)

65.565.575.5

40.340.756.4

34.134.047.9

27.626.938.9

23.622.433.3

21.019.629.9

19.117.827.2

1.011.011.44

Steel WormsModule 2SW

R

P Q

L M N O

W1

Bronze Worm Wheels & Gray Iron Worm WheelsModule 2BG・CG


Normal module

Number of starts


LH7 M N O P Q Q'SW2-R1

•SW2-R1J12

•SW2-R1J14

m2

1 3°42' RW1W1KW1K

121214

25 31 35 32 14 ―

SW2-R2

•SW2-R2J12

•SW2-R2J142 7°25' R

W1W1KW1K

121214

25 31 35 32 14 ―

SW2-L1

•SW2-L1J12

•SW2-L1J141 3°42' L

W1W1KW1K

121214

25 31 35 32 14 ―

SW2-L2

•SW2-L2J12

•SW2-L2J142 7°25' L

W1W1KW1K

121214

25 31 35 32 14 ―

* For [Caution on J Series], please see Page 395.* Please see Page 394 for Cautions on Product Characteristics and Cautions on Performing Secondary Operations.

Series Steel Worms

SW

R

P Q

L M N O

S

W1K


(kg)Catalog No.


46―

4 x 1.85 x 2.3

―M4M4

―77

0.200.200.18

SW2-R1

•SW2-R1J12

•SW2-R1J14

46―

4 x 1.85 x 2.3

―M4M4

―77

0.200.200.18

SW2-R2

•SW2-R2J12

•SW2-R2J14

46―

4 x 1.85 x 2.3

―M4M4

―77

0.200.200.18

SW2-L1

•SW2-L1J12

•SW2-L1J14

46―

4 x 1.85 x 2.3

―M4M4

―77

0.200.200.18

SW2-L2

•SW2-L2J12

•SW2-L2J14


Specifications



Normalpressure angle 14° 30'

Material S45C

Heat treatment ―





[Caution on Secondary Operations]

① Please read “Caution on Performing Secondary Operations” (Page 362) when performing modifi-cations and/or secondary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.

② Gear tooth hardening of the worm reduces the precision (introduces errors in the lead and pres-sure angles). Avoid heat treating as it will create bad tooth contact causing abrasion of the wheel.


① As available-on-request products, requires a lead-time for shipping within 2 working-days (excludes the day ordered), after placing an order. Please allow additional shipping time to get to your local distributor.

② Number of products we can process for one order is 1 to 20 units. For quantities of 21 or more pieces, we need to quote price and lead time.

③ Keyways are made according to JIS B1301 standards, Js9 tolerance.④ Areas of products which have been re-worked will not be black oxide coated.⑤ For products having a tapped hole, a set screw is included.

BG・CG

＊＊CS has a sand mold casting finish.

GE F

J

A B D’DC A B C D D’

( I )

J

GE F

(H)

CS

CS

HB

AH7 Bore

B Hub dia.

C Pitch dia.

D Throat dia.

D' Outside dia.

E Face width

F Hub width

G Length


（ I ） Web O.D.

J Mounting distance

Specifications






Series

GE F

J

A B D’DC

L

H1K

A B C D D’

( I )

J

GE F

(H)

CS

CS

L

HBKH1

（H）（ I ） JAllowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)30 rpm 100 rpm 300 rpm 600 rpm 900 rpm 1200 rpmCatalog No. Reduc-

tion ratioNo. of teeth

Number of starts

Helixangle

Handthread


Bore H7

Keyway Js9

Screw sizeCatalog No.BG2-20R1 J BORE H1K H1K H1K H1K H1K BG2-20R2 J BORE H1K H1K H1K H1K H1K BG2-20L1 J BORE H1K H1K H1K H1K H1K BG2-20L2 J BORE H1K H1K H1K H1K H1K CG2-20R1 J BORE H1K H1K H1K H1K H1KCG2-20R2 J BORE H1K H1K H1K H1K H1KCG2-30R1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2-30R2 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2-40R1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2-50R1 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBKCG2-50R2 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBKCG2-60R1 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBKCG2-20L1 J BORE H1K H1K H1K H1K H1KCG2-20L2 J BORE H1K H1K H1K H1K H1KCG2-30L1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2-30L2 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2-40L1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2-50L1 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBKCG2-50L2 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBKCG2-60L1 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK

12 14 15 16 17 18 19 20 22 25 28 30 32 35 4 × 1.8 5 × 2.3 6 × 2.8 8 × 3.3 10 × 3.3

M4 M5 M6 M8





L = 6.5mm L = 6.5mm

398 399

Sp

urG

ears

Hel

ical

Gea

rsIn

tern

alG

ears

Rac

ksC

P R

acks

& P

inio

nsM

iter

Gea

rsB

evel

Gea

rsS

crew

Gea

rsW

orm

Gea

r P

airs

Bev

elG

earb

oxes

Oth

erP

rod

ucts

Sp

urG

ears

Hel

ical

Gea

rsIn

tern

alG

ears

Rac

ksC

P R

acks

& P

inio

nsM

iter

Gea

rsB

evel

Gea

rsS

crew

Gea

rsW

orm

Gea

r P

airs

Bev

elG

earb

oxes

Oth

erP

rod

ucts

BG2.5-20R1BG2.5-20R2

2010

20

12

3°52'7°46'

RH1 12 35

50.1150.46

55 57.5

22 14 36

― ― 43.5

21.5 21.5

17.7 17.3

13.8 13.0

11.4 10.6

9.94 9.14

9.07 8.27

0.13~0.31

0.49BG2.5-20L1BG2.5-20L2

2010

12

3°52'7°46'

L50.1150.46

21.5 21.5

17.7 17.3

13.8 13.0

11.4 10.6

9.94 9.14

9.07 8.27

CG2.5-20R1CG2.5-20R2CG2.5-30R1CG2.5-30R2CG2.5-40R1

2010301540

2020303040

12121

3°52'7°46'3°52'7°46'3°52' R

H1H1H1H1HB

1212121215

3535404045

50.1150.4675.1775.68

100.23

55558080

105

57.557.582.582.5107.5

――――(9)

――――(86)

43.543.5565668.5

12.912.927.327.546.7

10.610.422.822.539.0

8.307.7818.017.231.3

6.836.3615.114.126.5

5.975.4913.212.323.3

5.444.9612.011.121.2

0.400.400.820.821.02

CG2.5-50R1CG2.5-50R2CG2.5-60R1

502560

505060

121

3°52'7°46'3°52'

HB 15505055

125.29126.16150.34

130130155

132.5132.5157.5

(9)(110)(110)(136)

818193.5

70.671.198.8

59.058.682.9

47.846.467.3

40.738.657.6

36.133.651.5

33.030.747.0

1.461.461.93

CG2.5-20L1CG2.5-20L2CG2.5-30L1CG2.5-30L2CG2.5-40L1

2010301540

2020303040

12121

3°52'7°46'3°52'7°46'3°52' L

H1H1H1H1HB

1212121215

3535404045

50.1150.4675.1775.68

100.23

55558080

105

57.557.582.582.5107.5

――――(9)

――――(86)

43.543.5565668.5

12.912.927.327.546.7

10.610.422.822.539.0

8.307.7818.017.231.3

6.836.3615.114.126.5

5.975.4913.212.323.3

5.444.9612.011.121.2

0.400.400.820.821.02

CG2.5-50L1CG2.5-50L2CG2.5-60L1

502560

505060

121

3°52'7°46'3°52'

HB 15505055

125.29126.16150.34

130130155

132.5132.5157.5

(9)(110)(110)(136)

818193.5

70.671.198.8

59.058.682.9

47.846.467.3

40.738.657.6

36.133.651.5

33.030.747.0

1.461.461.93

Steel WormsModule 2.5SW

R

P Q

L M N O

W1

Bronze Worm Wheels & Gray Iron Worm WheelsModule 2.5BG・CG

Series Steel Worms

SW

R

P Q

L M N O

S

W1K


(kg)Catalog No.


63―

5 x 2.35 x 2.35 x 2.3

―M4M4M4

―999

0.390.390.370.36

SW2.5-R1•SW2.5-R1J15•SW2.5-R1J16•SW2.5-R1J17

63―

5 x 2.35 x 2.35 x 2.3

―M4M4M4

―999

0.390.390.370.36

SW2.5-R2•SW2.5-R2J15•SW2.5-R2J16•SW2.5-R2J17

63―

5 x 2.35 x 2.35 x 2.3

―M4M4M4

―999

0.390.390.370.36

SW2.5-L1•SW2.5-L1J15•SW2.5-L1J16•SW2.5-L1J17

63―

5 x 2.35 x 2.35 x 2.3

―M4M4M4

―999

0.390.390.370.36





Normal module

Number of starts


LH7 M N O P Q Q'SW2.5-R1•SW2.5-R1J15•SW2.5-R1J16•SW2.5-R1J17

m2.5

1 3°52' RW1W1KW1KW1K

15151617

30 37 42 45 18 ―

SW2.5-R2•SW2.5-R2J15•SW2.5-R2J16•SW2.5-R2J172 7°46' R

W1W1KW1KW1K

15151617

30 37 42 45 18 ―


1 3°52' LW1W1KW1KW1K

15151617

30 37 42 45 18 ―


2 7°46' LW1W1KW1KW1K

15151617

30 37 42 45 18 ―

Specifications


Gear teeth Standard full depthNormalpressure angle 20°

Material S45C

Heat treatment ―





[Caution on Secondary Operations]① Please read “Caution on Performing Secondary Operations” (Page 362) when perform-

ing modifications and/or secondary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.


① These worms produce axial thrust forces. See Page 362 for more details.




BG・CG


GE F

J


( I )

J

GE F

(H)

CS

CS

HB

AH7 Bore

B Hub dia.

C Pitch dia.

D Throat dia.

D' Outside dia.

E Face width

F Hub width

G Length


（ I ） Web O.D.

J Mounting distance

Series

GE F

J

A B D’DC

L

H1K

A B C D D’

( I )

J

GE F

(H)

CS

CS

L

HBKH1

（H）（ I ） JAllowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)30 rpm 100 rpm 300 rpm 600 rpm 900 rpm 1200 rpmCatalog No. Reduction

ratioNo. of teeth

Number of starts

Helixangle

Handthread


Bore H7

Keyway Js9


12 14 15 16 17 18 19 20 22 25 28 30 32 35 4 × 1.8 5 × 2.3 6 × 2.8 8 × 3.3 10 × 3.3

M4 M5 M6 M8




BG2.5-20R1 J BORE H1K H1K H1K H1K H1K H1K H1K BG2.5-20R2 J BORE H1K H1K H1K H1K H1K H1K H1K BG2.5-20L1 J BORE H1K H1K H1K H1K H1K H1K H1K BG2.5-20L2 J BORE H1K H1K H1K H1K H1K H1K H1K CG2.5-20R1 J BORE H1K H1K H1K H1K H1K H1K H1KCG2.5-20R2 J BORE H1K H1K H1K H1K H1K H1K H1KCG2.5-30R1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2.5-30R2 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2.5-40R1 J BORE HBK HBK HBK HBK HBK HBK HBK HBKCG2.5-50R1 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBKCG2.5-50R2 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBKCG2.5-60R1 J BORE HBK HBK HBK HBK HBK HBK HBK HBK HBK HBK HBKCG2.5-20L1 J BORE H1K H1K H1K H1K H1K H1K H1KCG2.5-20L2 J BORE H1K H1K H1K H1K H1K H1K H1KCG2.5-30L1 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2.5-30L2 J BORE H1K H1K H1K H1K H1K H1K H1K H1K H1KCG2.5-40L1 J BORE HBK HBK HBK HBK HBK HBK 5,890 HBKCG2.5-50L1 J BORE HBK HBK HBK HBK HBK HBK 6,680 HBK HBK HBKCG2.5-50L2 J BORE HBK HBK HBK HBK HBK HBK 6,680 HBK HBK HBKCG2.5-60L1 J BORE HBK HBK HBK HBK HBK HBK 7,690 HBK HBK HBK HBK


Specifications






L = 7mm L = 7mm

* Please see Page 394 for Cautions on Product Characteristics and Cautions on Performing Secondary Operations. * For [Caution on J Series], please see Page 395.

400 401

Sp

urG

ears

Hel

ical

Gea

rsIn

tern

alG

ears

Rac

ksC

P R

acks

& P

inio

nsM

iter

Gea

rsB

evel

Gea

rsS

crew

Gea

rsW

orm

Gea

r P

airs

Bev

elG

earb

oxes

Oth

erP

rod

ucts

Sp

urG

ears

Hel

ical

Gea

rsIn

tern

alG

ears

Rac

ksC

P R

acks

& P

inio

nsM

iter

Gea

rsB

evel

Gea

rsS

crew

Gea

rsW

orm

Gea

r P

airs

Bev

elG

earb

oxes

Oth

erP

rod

ucts BG3-20R1

BG3-20R22010

20

12

3°55'7°50' R

H1

20

50

60.1460.57

66 69 28

15

43 ― ― 52

36.8 37.0

30.1 29.5

23.5 22.1

19.1 17.9

16.7 15.4

15.2 14.0

0.15~0.33

0.89BG3-20L1BG3-20L2

2010

12

3°55'7°50' L 60.14

60.5736.8 37.0

30.1 29.5

23.5 22.1

19.1 17.9

16.7 15.4

15.2 14.0


2010301540

2020303040

12121

3°55'7°50'3°55'7°50'3°55' R

H1H1H1H1HB

5050555555

60.1460.5790.2190.85

120.28

66669696

126

69699999

129

2828282830

4343434345

――――(9)

――――

(107)

5252676782

22.122.246.647.279.8

18.117.738.738.566.3

14.113.330.629.353.2

11.510.725.423.744.6

10.09.24

22.220.839.1

―

0.730.731.501.501.79

CG3-50R1CG3-50R2CG3-60R1

502560

505060

121

3°55'7°50'3°55'

HB636370

150.35151.41180.42

156156186

159159189

30 45 (9)(138)(138)(166)

9797

112

121122169

100100141

81.179.1

114

68.465.196.7

60.556.786.3

2.502.503.40


2010301540

2020303040

12121

3°55'7°50'3°55'7°50'3°55' L

H1H1H1H1HB

5050555555

60.1460.5790.2190.85

120.28

66669696

126

69699999

129

2828282830

4343434345

――――(9)

――――

(107)

5252676782

22.122.246.647.279.8

18.117.738.738.566.3

14.113.330.629.353.2

11.510.725.423.744.6

10.09.24

22.220.839.1

0.730.731.501.501.79

CG3-50L1CG3-50L2CG3-60L1

502560

505060

121

3°55'7°50'3°55'

HB636370

150.35151.41180.42

156156186

159159189

30 45 (9)(138)(138)(166)

9797

112

121122169

100100141

81.179.1

114

68.465.196.7

60.556.786.3

2.502.503.40


R

P Q

L M N O

W1


Series


Steel Worms

R

P Q

L M N O

S

W1K


(kg)Catalog No.


70

―5 x 2.36 x 2.86 x 2.86 x 2.8

―M4M5M5M5

―10101010

0.640.620.600.580.56

SW3-R1•SW3-R1J17•SW3-R1J18•SW3-R1J19•SW3-R1J20

70

―5 x 2.36 x 2.86 x 2.86 x 2.8

―M4M5M5M5

―10101010

0.640.620.600.580.56


70

―5 x 2.36 x 2.86 x 2.86 x 2.8

―M4M5M5M5

―10101010

0.640.620.600.580.56

SW3-L1•SW3-L1J17•SW3-L1J18•SW3-L1J19•SW3-L1J20

70

―5 x 2.36 x 2.86 x 2.86 x 2.8

―M4M5M5M5

―10101010

0.640.620.600.580.56



BG・CG

[Caution on Secondary Operations]

① Please read “Caution on Performing Secondary Operations” (Page 362) when performing modifications and/or secondary operations for safety concerns. KHK Quick-Mod Gears, the KHK's system for quick modification of KHK stock gears is also available.

② Gear tooth hardening of the worm reduces the precision (introduc-es errors in the lead and pressure angles). Avoid heat treating as it will create bad tooth contact causing abrasion of the wheel.

Specifications


Gear teeth Standard full depthNormalpressure angle 14° 30'

Material S45C

Heat treatment ―Tooth hardness (less than 194HB)







GE F

J


( I )

JGE F

(H)CS

CS

HB

Specifications






Series

GE F

J

A B D’DC

L

H1K

A B C D D’

( I )

J

GE F

(H)

CS

CS

L

HBKH1

E F G （H）（ I ） JAllowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)30 rpm 100 rpm 300 rpm 600 rpm 900 rpm 1200 rpmCatalog No. Reduction

ratioNo. of teeth

Number of starts

Helix angleHand thread Shape AH7 B C D D'

Bore H7

Keyway Js9





AH7 Bore

B Hub dia.

C Pitch dia.

D Throat dia.

D' Outside dia.

E Face width

F Hub width

G Total length


（ I ） Web O.D.

J Mounting distance20 22 25 28 30 32 35 40

6 × 2.8 8 × 3.3 10 × 3.3 12 × 3.3M5 M6 M8

BG3-20R1 J BORE H1K H1K H1K H1K H1K BG3-20R2 J BORE H1K H1K H1K H1K H1K BG3-20L1 J BORE H1K H1K H1K H1K H1K BG3-20L2 J BORE H1K H1K H1K H1K H1K CG3-20R1 J BORE H1K H1K H1K H1K H1K CG3-20R2 J BORE H1K H1K H1K H1K H1K CG3-30R1 J BORE H1K H1K H1K H1K H1K H1KCG3-30R2 J BORE H1K H1K H1K H1K H1K H1KCG3-40R1 J BORE HBK HBK HBK HBK HBK HBKCG3-50R1 J BORE HBK HBK HBK HBK HBK HBK HBKCG3-50R2 J BORE HBK HBK HBK HBK HBK HBK HBKCG3-60R1 J BORE HBK HBK HBK HBK HBK HBK HBK HBKCG3-20L1 J BORE H1K H1K H1K H1K H1KCG3-20L2 J BORE H1K H1K H1K H1K H1KCG3-30L1 J BORE H1K H1K H1K H1K H1K H1KCG3-30L2 J BORE H1K H1K H1K H1K H1K H1KCG3-40L1 J BORE HBK HBK HBK HBK HBK HBKCG3-50L1 J BORE HBK HBK HBK HBK HBK HBK HBKCG3-50L2 J BORE HBK HBK HBK HBK HBK HBK HBKCG3-60L1 J BORE HBK HBK HBK HBK HBK HBK HBK HBK

① As available-on-request products, requires a lead-time for shipping within 2 working-days (excludes the day ordered), after placing an order.

Please allow additional shipping time to get to your local distributor.


③ Keyways are made according to JIS B1301 standards, Js9 tolerance.

④ Certain products which would otherwise have a very long tapped hole are counterbored to reduce the length of the tap.

⑤ For products having a tapped hole, a set screw is included.


To order J Series products, please specify; Catalog No. + J + BORE ＊ The product shapes of J Series items are identified by background color.

L = 7.5mm L = 7.5mm


Normal module

Number of starts


LH7 M N O P Q Q'SW3-R1•SW3-R1J17•SW3-R1J18•SW3-R1J19•SW3-R1J20

m3

1 3°55' R

W1W1KW1KW1KW1K

1617181920

35 44 50 50 20 ―


2 7°50' R

W1W1KW1KW1KW1K

1617181920

35 44 50 50 20 ―


1 3°55' L

W1W1KW1KW1KW1K

1617181920

35 44 50 50 20 ―


2 7°50' L

W1W1KW1KW1KW1K

1617181920

35 44 50 50 20 ―


SW

* Please see Page 394 for Cautions on Product Characteristics and Cautions on Performing Secondary Operations.

402 403

Sp

urG

ears

Hel

ical

Gea

rsIn

tern

alG

ears

Rac

ksC

P R

acks

& P

inio

nsM

iter

Gea

rsB

evel

Gea

rsS

crew

Gea

rsW

orm

Gea

r P

airs

Bev

elG

earb

oxes

Oth

erP

rod

ucts

Sp

urG

ears

Hel

ical

Gea

rsIn

tern

alG

ears

Rac

ksC

P R

acks

& P

inio

nsM

iter

Gea

rsB

evel

Gea

rsS

crew

Gea

rsW

orm

Gea

r P

airs

Bev

elG

earb

oxes

Oth

erP

rod

ucts



R

P Q

L M N O

W1



(kg)Catalog No.

R Size S9595

――

――

1.761.76

SW4-R1SW4-R2

9595

――

――

1.761.76

SW4-L1SW4-L2


Number of starts


LH7 M N O P Q Q'SW4-R1SW4-R2 m4 1

23°42'7°25'

RR

W1W1

2222

5050

6262

7070

7070

2525

――

SW4-L1SW4-L2 m4 1

23°42'7°25'

LL

W1W1

2222

5050

6262

7070

7070

2525

――


ratioNormalmodule

No. of teeth

Number of starts


AH7 B C D D' EBG4-20R1BG4-20R2

2010

m4

2020

12

3°42'7°25'

RR

H1H1

2020

6060

80.1780.67

8888

9090

3535

BG4-20L1BG4-20L2

2010

2020

12

3°42'7°25'

LL

H1H1

2020

6060

80.1780.67

8888

9090

3535


ratioNormalmodule

No. of teeth

Number of starts


AH7 B C D D' ECG4-20R1CG4-20R2CG4-30R1CG4-30R2CG4-40R1

2010301540

m4

2020303040

12121

3°42'7°25'3°42'7°25'3°42'

RRRRR

H1H1HBHBHB

2020202020

6060606070

80.1780.67

120.25121.01160.33

8888

128128168

9090

130130171

3535353535

CG4-50R1CG4-50R2CG4-60R1

502560

505060

121

3°42'7°25'3°42'

RRR

H2H2H2

202020

707080

200.42201.69240.5

208208248

211211251

353535


2010301540

2020303040

12121

3°42'7°25'3°42'7°25'3°42'

LLLLL

H1H1HBHBHB

2020202020

6060606070

80.1780.67

120.25121.01160.33

8888

128128168

9090

130130171

3535353535

CG4-50L1CG4-50L2CG4-60L1

502560

505060

121

3°42'7°25'3°42'

LLL

H2H2H2

202020

707080

200.42201.69240.5

208208248

211211251

353535

＊ CS has a sand mold casting finish.

Specifications





Material S45C

Heat treatment ―





[Caution on Product Characteristics] ① Worm Wheels are profile shifted to create the proper center distance.② H2 Shape Worm Gears have elongated casting holes in the web (H).③ The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see Page 358 for more details.

Steel Worms

SW


（H

( I )

J

A B C D D

GE F

CS

CS

’

）

A B C D D’

( I )

J

GE F

(H)

CS

CS



H2HB

Hub width Total length Web thickness Web O.D. Mounting distance Allowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)Catalog No.

F G (H) ( I ) J 30 rpm 100 rpm 300 rpm 600 rpm


(mm)

Weight

(kg)Catalog No.



1717171717

5252525252

――

(12)(12)(11)

――

(96)(96)

(136)

71719191

111

45.645.596.396.8

165

37.036.079.178.3

136

28.726.962.359.4

108

23.021.450.947.389.4

0.17~0.370.17~0.370.17~0.370.17~0.370.17~0.37

1.561.562.522.523.81


171717

525252

(12)(12)(12)

(176)(176)(218)

131131151

249250348

205204288

165160233

137130194

0.17~0.370.17~0.370.17~0.37

4.784.786.36

CG4-50R1CG4-50R2CG4-60R1

1717171717

5252525252

――

(12)(12)(11)

――

(96)(96)

(136)

71719191

111

45.645.596.396.8

165

37.036.079.178.3

136

28.726.962.359.4

108

23.021.450.947.389.4

0.17~0.370.17~0.370.17~0.370.17~0.370.17~0.37

1.561.562.522.523.81


171717

525252

(12)(12)(12)

(176)(176)(218)

131131151

249250348

205204288

165160233

137130194

0.17~0.370.17~0.370.17~0.37

4.784.786.36

CG4-50L1CG4-50L2CG4-60L1

1717

5252

7171

75.9 75.9

61.7 60.0

47.9 44.8

38.4 35.7

33.7 30.9

30.1 27.5

0.17~0.370.17~0.37

1.911.91

BG4-20R1BG4-20R2

1717

5252

7171

75.9 75.9

61.7 60.0

47.9 44.8

38.4 35.7

33.7 30.9

30.1 27.5

0.17~0.370.17~0.37

1.911.91

BG4-20L1BG4-20L2


Specifications

Catalog No. BG CG

Precision grade KHK W 002 grade 4 KHK W 002 grade 4Referencesection of gear Normal plane Normal plane

Gear teeth Standard full depth Standard full depth

Normalpressure angle 14° 30' 14° 30'

Material CAC502（formerly JIS PBC2） FC200 ＊Heat treatment ― ―

Tooth ardness ― ―

GE F

J

A B D’DC

H1

BG・CG

＊ FC200’s tensile strength (200N/mm2) is derived from test specimens and differs according to the product shape.

404 405

Sp

urG

ears

Hel

ical

Gea

rsIn

tern

alG

ears

Rac

ksC

P R

acks

& P

inio

nsM

iter

Gea

rsB

evel

Gea

rsS

crew

Gea

rsW

orm

Gea

r P

airs

Bev

elG

earb

oxes

Oth

erP

rod

ucts

Sp

urG

ears

Hel

ical

Gea

rsIn

tern

alG

ears

Rac

ksC

P R

acks

& P

inio

nsM

iter

Gea

rsB

evel

Gea

rsS

crew

Gea

rsW

orm

Gea

r P

airs

Bev

elG

earb

oxes

Oth

erP

rod

ucts


Steel WormsSteel WormsModule 5、6SW

R

P QQ’

L M N O

W3

Bronze Worm Wheels & Gray Iron Worm WheelsModule 5、6BG・CG


(kg)Catalog No.

R Size S125125

――

――

2.862.86

SW5-R1SW5-R2

150150

――

――

4.384.38

SW6-R1SW6-R2


Number of starts


LH7 M N O P Q Q'SW5-R1SW5-R2 m5 1

24°06'8°13'

RR

W3W3

2525

5656

7070

8080

8585

2020

2020

SW6-R1SW6-R2 m6 1

24°18'8°38'

RR

W3W3

3030

6464

8080

9292

100100

2525

2525


ratioNormalmodule

No. of teeth

Number of starts


AH7 B C D D' EBG5-20R1BG5-20R2

2010 m5 20

2012

4°06'8°13'

RR

H1H1

2222

7575

100.26101.04

110110

113113

4545

BG6-20R1BG6-20R2

2010 m6 20

2012

4°18'8°38'

RR

H1H1

2525

100100

120.34121.38

132132

136136

5252


ratioNormalmodule

No. of teeth

Number of starts


AH7 B C D D' ECG5-20R1CG5-20R2CG5-30R1CG5-30R2CG5-40R1

2010301540 m5

2020303040

12121

4°06'8°13'4°06'8°13'4°06'

RRRRR

H1H1HBHBH2

2222222222

7575757590

100.26101.04150.38151.56200.51

110110160160210

113113163163213

4545454545

CG5-50R1CG5-50R2CG5-60R1

502560

505060

121

4°06'8°13'4°06'

RRR

H2H2H2

222222

9090

100

250.61252.59300.77

260260310

263263313

454545


2010301540 m6

2020303040

12121

4°18'8°38'4°18'8°38'4°18'

RRRRR

H1H1HBHBH2

2525252525

100100100100100

120.34121.38180.51182.06240.68

132132192192252

136136196196256

5252525252

CG6-50R1CG6-50R2CG6-60R1

502560

505060

121

4°18'8°38'4°18'

RRR

H2H2H2

252525

100100120

300.85303.44361.02

312312372

316316376

525252

Specifications

Catalog No. BG CG

Precision grade KHK W 002 grade 4 KHK W 002 grade 4Referencesection of gear Normal plane Normal plane

Gear teeth Standard full depth Standard full depth

Normalpressure angle 14° 30' 14° 30'

Material CAC502（formerly JIS PBC2） FC200 ＊Heat treatment ― ―

Tooth hardness ― ―


[Caution on Product Characteristics] ① Worm Wheels are profile shifted to create the proper center distance.② H2 Shape Worm Gears have elongated casting holes in the web (H).③ The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see Page 358 for more details.

SW

＊ CS has a sand mold casting finish.



（H

( I )

J

A B C D D

GE F

CS

CS

’

）

A B C D D’

( I )

J

GE F

(H)

CS

CS

BG・CG

H2HB

Hub width Total length Web thickness Web O.D. Mounting distance Allowable torque (N·m) NOTE 1 Backlash

(mm)

Weight

(kg)Catalog No.

F G (H) ( I ) J 30 rpm 100 rpm 300 rpm 600 rpm


(mm)

Weight

(kg)Catalog No.



2020202020

6565656565

――

(13)(13)(16)

――

(127)(127)(172)

8585

110110135

87.487.9

185187316

70.368.9

150150258

54.751.5

119114206

43.841.096.890.6

170

0.20~0.400.20~0.400.20~0.400.20~0.400.20~0.40

3.183.184.784.787.44


202020

656565

(16)(16)(14)

(223)(223)(276)

160160185

477483668

390390548

315307443

261249369

0.20~0.400.20~0.400.20~0.40

9.799.79

12.0

CG5-50R1CG5-50R2CG5-60R1

2020202020

7272727272

――

(15)(15)(15)

――

(155)(155)(213)

100100130130160

139141294299502

111110237238407

86.281.8

187181325

―――――

0.22~0.420.22~0.420.22~0.420.22~0.420.22~0.42

5.395.398.288.28

10.9


202020

727272

(16)(16)(17)

(275)(275)(336)

190190220

760774

1060

615620865

496488698

―――

0.22~0.420.22~0.420.22~0.42

14.014.019.8

CG6-50R1CG6-50R2CG6-60R1

2020

6565

8585

146 146

117 115

91.2 85.8

73.0 68.4

63.7 58.8

56.9 52.2

0.20~0.400.20~0.40

3.893.89

BG5-20R1BG5-20R2

2020

7272

100100

232 235

185 183

144 136

115 109

99.2 92.3

88.882.0

0.22~0.420.22~0.42

6.606.60

BG6-20R1BG6-20R2




GE F

J

A B D’DC

H1

Specifications





Material S45C

Heat treatment ―



＊ FC200’s tensile strength (200N/mm2) is derived from test specimens and differs according to the product shape.

h8 - khk gears - gear manufacturer · lead angle hand thread shape bore hub dia. pitch dia. outside...

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