R 20° PRESSURE ANGLE - Timing Belts and Pulleys · Fig. 2 Worm Gears – With Keyway – Right-Hand – Aluminum Bronze d Bore H8 d Tolerance Thread Data Sgl. Thd. Dbl. Thd. Metric

I

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1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

Metric

0 10

Phone: 516.328.3300 • Fax: 516.326.8827 • www.sdP-si.com

16

ISO CLASS 8RIGHT-HAND20° PRESSURE ANGLE

maTeRiaL: worms - Steel worm Gears - Aluminum Bronze

sPeciFicaTions: Thread Data

D805 P1-160D785 P1-145D780 P1-147D777 P1-114D190 P306

A 1(C,B) (5,6)M–XP1 of 3

10-5-89REV: 10.16.12 mh

1.5713° 11'

3.1426° 20'

singleThread

doubleThread

LeadLead angle

S

ØD1 (TYP)P.D.

Fig. 1

L

ØD

19 34

ØD P.D.

Fig. 2

ØD1Ød

5 7

catalog number

meTRic comPonenTThread data

a 1c 5mYh05Rca 1c 5mwh05Rc

P.d. ddia.

sFace

widthL

••

99

1010

66

1212

6565

Fig. 1 worms – Right-hand – steel

d1 dia. h7

0-0.012( )

no.of

TeethP.d. d

dia.

d1hubdia.

•

•

•

•

•••

20203030405060

10101515202530

11111616212631

4444555

99

1212152025

catalog number

a 1B 6mYh05R020a 1B 6mwh05R020a 1B 6mYh05R030a 1B 6mwh05R030a 1B 6mYh05R040a 1B 6mYh05R050a 1B 6mYh05R060

Fig. 2 worm Gears – Right-hand – aluminum Bronze

dBore H7

+0.012 0( )

Thread data

sgl.Thd.

dbl.Thd.

sgl.Thd.

dbl.Thd.

woRms & woRm GeaRs • mODULE 0.5

11.27.12 JF1-160

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2

3

4

5

6

7

8

9

10

11

12

13

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14

15

A

PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM

1-161

WORM GEARS & WORMS • MODULE 0.8


MATERIAL: Worms – Steel Worm Gears – Aluminum Bronze

SPECIFICATIONS: Thread Data

2.5133° 49'

5.0267° 36'

SingleThread

DoubleThread

LeadLead Angle

S

ØD1 (TYP)ØP.D.

Fig. 1

L

ØD

25 40

ØD ØP.D.

Fig. 2

ØD1Ød

8 8

Catalog Number

METRIC COMPONENT

A 1C 5MYH08RCA 1C 5MWH08RC

P.D. DDia.

SFace

WidthL

••

1212

13.613.6

88

2020

8585

Fig. 1 Worms – Right-Hand – Steel

D1 Dia. h7

0-0.015( )

No.of

TeethP.D. D

Dia.

D1HubDia.

•

•

•

•

•••

20203030405060

16162424324048

17.617.625.625.633.641.649.6

5555688

+0.012/0+0.012/0+0.012/0+0.012/0+0.012/0+0.015/0+0.015/0

12121818202525

Catalog Number

A 1B 6MYH08R020A 1B 6MWH08R020A 1B 6MYH08R030A 1B 6MWH08R030A 1B 6MYH08R040A 1B 6MYH08R050A 1B 6MYH08R060

Fig. 2 Worm Gears – Right-Hand – Aluminum Bronze

dBore

H7

dTolerance

Thread DataSgl.Thd.

Dbl.Thd.

Thread DataSgl.Thd.

Dbl.Thd.

Metric

0 10


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1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A1-162

Metric

0 10


RIGHT-HANDSINGLE THREAD20° PRESSURE ANGLE

MATERIAL: Worms – Stainless Steel Worm Gears – Acetal

SPECIFICATIONS: Thead Data

2.5214° 24'

SingleThread

LeadLead Angle

ØD8

M3 SET SCREW

S

8 h8ØP.D.

Fig. 2

Fig. 1

Fig. 3

20 40L

ØD

( ) 0-0.022

L

ØP.D.ØD1Ød

TSETSCREW

6

LlS

ØD1ØdØP.D.ØD

36

30° 30°

lA

Catalog Number

METRIC COMPONENT

A 1Y 5MYK08RAA 1Y 5MYK08RB

P.D.Fig.No.

DDia.

SFace

WidthL

D1HubDia.

lHubProj.

12

10.410.4

1212

5–

1720

2680

10.1–

9–

d BoreH8

+0.018 0( )

No.of

Teeth

Fig.No P.D. D

Dia. L AT

SetScrew

D1HubDia.

lHubProj.

3333

Catalog Number

A 1P 6MYK08R020A 1P 6MYK08R030A 1P 6MYK08R040A 1P 6MYK08R050

d BoreH8

+0.018 0( )

20304050

16243240

17.725.733.741.7

5566

12121414

12161820

6688

3344

M3M3M4M4

Fig. 1 & 2 Worms – Right-Hand – Stainless Steel

Fig. 3 Worm Gears – Right-Hand – Acetal

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1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A


1-163

WORM GEARS & WORMS • MODULE 1


MATERIAL: Worms – Steel Worm Gears – Aluminum Bronze


3.1463° 35'

6.3117° 08'

SingleThread

DoubleThread

LeadLead Angle

ØD ØP.D.

Fig. 2

ØD1Ød

10 10

ØD

S

ØD1 (TYP)ØP.D.

Fig. 1

45 65

55

Ø18(TYP)

L

35

Catalog Number

METRIC COMPONENT

A 1C 5MYH10RCA 1C 5MWH10RC

P.D. DDia.

SFace

WidthL

••

1616

1818

1313

3030

140140

Fig. 1 Worms – Right-Hand – Steel

D1 Dia. h7

0-0.018( )

No.of

TeethP.D. D

Dia.

D1HubDia.

•

•

•

•

•••

20203030405060

20203030405060

23233333435363

666688

10

+0.012/0+0.012/0+0.012/0+0.012/0+0.015/0+0.015/0+0.015/0

16162020263035

Catalog Number

A 1B 6MYH10R020A 1B 6MWH10R020A 1B 6MYH10R030A 1B 6MWH10R030A 1B 6MYH10R040A 1B 6MYH10R050A 1B 6MYH10R060

Fig. 2 Worm Gears – Right-Hand – Aluminum Bronze

dBore

H7

dTolerance

Thread DataSgl.Thd.

Dbl.Thd.

Thread DataSgl.Thd.

Dbl.Thd.

Metric

0 10


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2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A1-164

WORM GEARS & WORMS • MODULE 1

WORMS – RIGHT- AND LEFT-HANDWORM GEARS – RIGHT-HAND20° PRESSURE ANGLE

MATERIAL: Worms – Steel Worm Gears: Gear – Acetal Insert – Brass


3.1483° 35'

6.3337° 11'

SingleThread

DoubleThread

LeadLead Angle

Ø13.5

S

ØD1ØP.D.

25 50L

ØD

L10S

ØD1ØdØP.D.ØD

3.56.4

M4 SET SCREW

30° 30°

1.43

KEYWAYPROFILE

30°S

ØP.D.Fig. 1 Fig. 2

Fig. 3

ØD Ød

30°

30°3

ØD

ØP.D.

Fig. 4

ØD1Ød

8 94

M4 SET SCREW

Catalog Number

METRIC COMPONENTThread Data

A 1C 5MYK10RAA 1C 5MWK10RAA 1C 5MYK10LAA 1C 5MWK10LA

A 1C 5MYK10RBA 1C 5MWK10RBA 1C 5MYK10LBA 1C 5MWK10LB

A 1C 5MYK10RCA 1C 5MWK10RCA 1C 5MYK10LCA 1C 5MWK10LC

P.D. DDia.

SFace

WidthL D1

Dia.D1

Tol.

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

16161616

16161616

16161616

18181818

18181818

18181818

8888

6666

––––

+0.022/0+0.022/0+0.022/0+0.022/0

+0.018/0+0.018/0+0.018/0+0.018/0

––––

25252525

22222222

25252525

––––

32323232

100100100100

––––

15.715.715.715.7

13 (h8)13 (h8)13 (h8)13 (h8)

––––

––––

0/-0.0270/-0.0270/-0.0270/-0.027

Fig. 1 Worms – Right- and Left-Hand – Steel

Fig. 2

Fig. 3

dBore

H8

dTol.Sgl.

Thd.Dbl.Thd.

Right-Hand

Left-Hand

No.of

TeethP.D. D

Dia.

D1HubDia.

•••

202030

202030

232333

666

161620

Catalog Number

A 1Z 6MWK10R020RA 1Z 6MYK10R020RA 1Z 6MYK10R030R

Fig. 4 Worm Gears – Right-Hand – Acetal with Brass Insert

d BoreH8

+0.018 0( )

Thread Data

Sgl.Thd.

Dbl.Thd.

Metric

0 10

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A


1-165

WORM GEARS • MODULE 1

ISO CLASS 8WORM GEARS – RIGHT- AND LEFT-HANDWITH OR WITHOUT KEYWAY20° PRESSURE ANGLE

MATERIAL: Aluminum Bronze

10

ØP.D.ØD

10

ØDØP.D.

Fig. 1 Fig. 2

ØD1Ød ØD1Ød

4

M5x0.8 SET SCREW

88

w

t

KEYWAYPROFILE

Catalog Number


A 1B 6MYK10R020A 1B 6MYK10L020A 1B 6MWK10R020A 1B 6MYK10R030A 1B 6MYK10L030A 1B 6MWK10R030A 1B 6MYK10R040A 1B 6MYK10L040A 1B 6MYK10R050A 1B 6MYK10L050

P.D.No.of

Teeth

DDia.

• •

••

••

•

• •

•

•

•

••

•

••

•

•

•

20202030303040405050

20202030303040405050

23.523.523.533.533.533.543.543.553.553.5

6666668888

17171722222225253030

+0.018/0+0.018/0+0.018/0+0.018/0+0.018/0+0.018/0+0.022/0+0.022/0+0.022/0+0.022/0

Fig. 1 Worm Gears – Right- and Left-Hand – Aluminum Bronze

dBore

H8

D1HubDia.

dTol.Sgl.

Thd.Dbl.Thd.

Right-Hand

Left-Hand

No.of

TeethP.D. D

Dia.

D1HubDia.

w t

•

•

•

•

••

202030304050

202030304050

23.523.533.533.543.553.5

88

10101012

+0.022/0+0.022/0+0.022/0+0.022/0+0.022/0+0.027/0

171722222530

333334

1.41.41.41.41.41.8

Catalog Number

A 1B66MYK10R020A 1B66MWK10R020A 1B66MYK10R030A 1B66MWK10R030A 1B66MYK10R040A 1B66MYK10R050K

Fig. 2 Worm Gears – With Keyway – Right-Hand – Aluminum Bronze

dBore

H8

dTolerance

Thread Data

Sgl.Thd.

Dbl.Thd.

Metric

0 10


I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A1-166

Metric

0 10

WORM GEARS & WORMS • MODULE 1 & 2

RIGHT-HANDSINGLE THREAD20° PRESSURE ANGLE

MATERIAL: Worms – Zinc Die Cast Worm Gears – Nylon Molded

LlS

ØP.D.

ØD

ØP.D.

Fig. 1

Fig. 2

2-PieceConstruction

ØDØD1Ød ØD1

Ød1Ød

LlS

S1

Catalog Number

METRIC COMPONENT

A 1D 5MYZ10A 1D 5MYZ20

P.D.Module DDia.

SFace

WidthL

D1HubDia.

lHubProj.

12

2032

2236

1014

+0.015/0+0.018/0

1734

3454

1726

8.510

d Bore

H8

d Tol.

Fig. 1 Worms – Right-Hand – Zinc Die Cast

No.of

TeethMod. P.D. D

Dia. L d1 S1

D1HubDia.

lHubProj.

12

Catalog Number

A 1M 6MYZ10R040A 1M 6MYZ20R040

d Bore

H8

d Tol.

SFaceWdth.

4040

4080

4587

1017

+0.015/0+0.018/0

2836

1625

1929

65.5

3370

56

Fig. 2 Worm Gears – Right-Hand – Nylon Molded

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A


1-167

Metric

0 10


WORMS – RIGHT-AND LEFT-HANDWORM GEARS – RIGHT-HAND20° PRESSURE ANGLE

MATERIAL: Worms – Steel Worm Gears – Cast Iron or Acetal with Brass Insert


4.7193° 26'

9.4846° 54'

SingleThread

DoubleThread

LeadLead Angle

ØD

Ød1

ØD

ØD

30

L

ØP.D.ØD1Ød

lS

L

ØP.D.ØD1Ød

lS

tw

KEYWAYPROFILE

L

ØP.D.

ØD1Ød

lS

6

Ll2

30°

Ø20ØdØ25Ø28

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

30°

Ll2l1 35

Ø25

Ø28 Ø20

Ød

30°

Catalog Number




Ld

BoreH8

dTol.

l1HubProj.

l2HubProj.

• ••

••

•••

••

•

•

•

•

•

•

•

10101010

12121212

+0.022/0+0.022/0+0.022/0+0.022/0

+0.027/0+0.027/0+0.027/0+0.027/0

43434343

55555555

––––

10101010

13131313

10101010

––––

4444

––––

1.81.81.81.8



twSgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand

No.of

TeethP.D. D

Dia.

D1HubDia.

lHubProj.

d1Dia.

•

•

•

•

••

20 20 30 30 40 50

60 80100

20 20

Catalog Number

A 1C 6MYK15R020A 1C 6MWK15R020A 1C 6MYK15R030A 1C 6MWK15R030A 1C 6MYK15R040A 1C 6MYK15R050

A 1C 6MYK15R060A 1C 6MYK15R080A 1C 6MYK15R100

A 1P 6MYK15R020A 1P 6MWK15R020

Fig. 3 Worm Gears – Right-Hand – Cast Iron

Fig. 4 Worm Gears – Right-Hand – Cast Iron

Fig. 5 Worm Gears – Right-Hand – Acetal with Brass Insert

dBore

H8

dTol.

SFace

WidthL

Thread Data

Sgl.Thd.

Dbl.Thd.

••

•

••

30 30 45 45 60 75

90120150

30 30

34.3 34.3 50 50 65 80

96126156

34.3 34.3

8 810101212

121515

8 8

+0.022/0+0.022/0+0.022/0+0.022/0+0.027/0+0.027/0

+0.027/0+0.027/0+0.027/0

+0.022/0+0.022/0

101012121214

141414

1010

202022222527

272929

2020

222230303640

405050

2222

101010101313

131515

1010

––––––

81111141

––


I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A1-168

Metric

0 10


ISO CLASS 8RIGHT- AND LEFT-HAND20° PRESSURE ANGLE

MATERIAL: Worms – Steel Worm Gears – Aluminum Bronze or Aluminum Bronze with Gray Cast Iron Core

SPECIFICATIONS: ** Bore Tolerance: 8 & 10 mm +0.022/0 12, 14 & 16 mm +0.027/0

Thread Data

4.7193° 26'

9.4846° 54'

SingleThread

DoubleThread

LeadLead Angle

Ø20

S

ØdØ28 ØD1

ØD

ØDØD

w

25

ØP.D.ØD1Ød

l15

tKEYWAY PROFILE(Fig.'s 2,4 & 6)

ØP.D.ØD1Ød

30°

55l1

Ø25

30°

25

ØP.D.Ød

l15

GRAY IRON CASTING*(Fig.'s 5 & 6)

28(TYP)l15(TYP)

43l2S

30°

Ø20Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Ød

Ø25

Ø28

l2

Catalog Number




d**Bore

H8S l1 l2

• ••

••

•••

••

•

•

•

•

•

•

•

10101010

12121212

30303030

35353535

––––

10101010

13131313

10101010

––––

4444

––––

1.81.81.81.8


Fig. 2 Worms – Right- and Left-Hand – Steel – With Keyway

twSgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand

No.of

TeethP.D. D

Dia.

D1HubDia.

lHubProj.

w t

2020202020303030303030

404040505050

3030303030454545454545

606060757575

35.335.335.535.335.350.350.350.350.350.350.3

65.365.365.380.380.380.3

812 812 8101510141510

121612122012

2525252525303030303030

363636404040

1010101010101010101010

131313131313

Catalog Number

A 1B 6MYK15R020A 1B66MYK15R020A 1B 6MWK15R020A 1B66MWK15R020A 1B 6MYK15L020 A 1B 6MYK15R030A 1B66MYK15R030AA 1B 6MWK15R030A 1B66MWK15R030A 1B66MWK15R030AA 1B 6MYK15L030

A 1B 6MYK15R040A 1B66MYK15R040A 1B 6MYK15L040A 1B 6MYK15R050A 1B66MYK15R050AA 1B 6MYK15L050

Fig. 3 & 4 Worm Gears – Right- and Left-Hand – Aluminum Bronze – Fig. 4 With Keyway

Fig. 5 & 6 Worm Gears – Right and Left-Hand – Aluminum Bronze with Gray Cast Iron Core – Fig. 6 With Keyway

d**Bore

H8

Thread Data

Sgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand

••

••

•

••

•

•

•

•

•

•

••••

•••

••

•

•

•

••

•

••

••

• •

* To be discontinued when present stock is depleted.

*

–1.8–

1.8––

2.3–

2.32.3–

–2.3––

2.8–

–4–4––5–55–

–5––6–

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A


1-169

Metric

0 10

WORM GEARS & WORMS • MODULE 1 TO 2.5

RIGHT-HANDMODULE 1, 1.5, 2 & 2.520° PRESSURE ANGLE (EXCEPT MODULE 2)

MATERIAL: Worms – Steel, Black Oxide Finish Worm Gears – Machined from Cast Nylon Blanks


ØD

ØD

L

ØP.D.ØD1Ød

S

L

lS

ØD1ØdØP.D.ØD

S

Ød ØP.D.

Fig. 1 Fig. 2

Fig. 3

M45

ØD2

Catalog Number


A 1C 5MYH10RA 1C 5MWH10R

A 1C 5MYH15RA 1C 5MWH15RA 1C 5MYH20RA 1C 5MWH20RA 1C 5MYH25RA 1C 5MWH25R

dBore

H7

dTol.Mod. P.D. D

Dia.

SFace

WidthL

•

•

•

•

•

•

•

•

•

11

1.51.5222.52.5

1616

252531313737

1818

282835354242

+0.012/0+0.012/0

+0.015/0+0.015/0+0.018/0+0.018/0+0.018/0+0.018/0

66

88

12121515

3232

303032324545

––

404046466363

–––202025253030

–––101014141818

Fig. 1 Worms – Right-Hand – Steel, Black Oxide Finish

Fig. 2 Worms – Right-Hand – Steel, Black Oxide Finish

lD1

HubDia.

Sgl.Thd.

Dbl.Thd.

No.of

TeethMod. P.D.

D2

ThroatDia.

DDia.

D1HubDia.

2020304050202020202020

111111.51.5222.52.5

2020304050303040405050

2222324252333344445555

232333435334.534.5464657.557.5

6668888

10101212

1010101010121222222222

1616202630222233333535

2020202020222235353636

+0.012/0+0.012/0+0.012/0+0.015/0+0.015/0+0.015/0+0.015/0+0.015/0+0.015/0+0.018/0+0.018/0

Catalog Number

A 1P 6MYH10R20A 1P 6MWH10R20A 1P 6MYH10R30A 1P 6MYH10R40A 1P 6MYH10R50A 1P 6MYH15R20A 1P 6MWH15R20A 1P 6MYH20R20A 1P 6MWH20R20A 1P 6MYH25R20A 1P 6MWH25R20

Fig. 3 Worm Gears – Right-Hand – Machined from Cast Nylon

dBore

H7

dTol.

SFace

WidthL

Thread Data

Sgl.Thd.

Dbl.Thd.

•

••••

•

•

•

•

•

•

11.522.5

3° 35'3° 26'3° 42'3° 52'

7° 11'6° 54'7° 25'7° 46'

20°20°

14-1/2°20°

SingleThread

DoubleThread

P.A.Lead Angle

Module


I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A1-170

30°30°

65l2l1 S

Ø31

Ø35

Ø25

50l2S

30°

Ø25Fig. 1

Fig. 2

Ød

ØdØ31ØD

twKEYWAY PROFILE

(Fig. 2)

WORMS • MODULE 2


MATERIAL: Worms – Steel

SPECIFICATIONS: * Bore Tolerance: 12 & 14 mm +0.027/0 Thread Data

6.2963° 42'

12.6727° 25'

SingleThread

DoubleThread

LeadLead Angle

Catalog Number




d*Bore

H8S

l1HubProj.

l2HubProj.

w

• •

•

•

••

•

•

••

•

•

•

•

•

•

12121212

14141414

35353535

41414141

––––

12121212

15151515

12121212

––––

2.32.32.32.3

––––

5555



tSgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand

See the next page for mating worm gears

Metric

0 10

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A


1-171

ØD

3515

ØP.D.ØD1Ød

20

Fig. 1

ØDØD1

3515

ØP.D.Ød

20

Fig. 2

twKEYWAY PROFILE

(Fig.'s 2, 3 & 4)SEE NOTE

20(TYP)

ØD

ØP.D.ØD1Ød

GRAY IRONCASTING*(Fig.'s 3 & 4)

38(TYP)

Ø70 Ød

Fig. 3

Fig. 4

2

18

Catalog Number

METRIC COMPONENT

No.of

TeethP.D. D

Dia.

D1HubDia.

20202020202525253030303030

404040

505050

32323232323838384040404040

454545

505050

47 47 47 47 47 57 57 57 67 67 67 67 67

87 87 87

107107107

A 1B 6MYK20R20A 1B 6MWK20R020A 1B66MWK20R020A A 1B66MYK20R020AA 1B 6MYK20L020A 1B 6MYK20R025A 1B66MYK20R025A 1B 6MYK20L025A 1B 6MYK20R030A 1B66MYK20R030A 1B 6MWK20R030A 1B66MWK20R030A 1B 6MYK20L030

A 1B 6MYK20R040A 1B66MYK20R040A 1B 6MYK20L040

A 1B 6MYK20R050A 1B66MYK20R050AA 1B 6MYK20L050


Fig. 3 Worm Gears – Right- and Left-Hand – Aluminum Bronze with Gray Cast Iron Core


d**Bore

H8tw

Thread Data

•

•

•

•

•

••

••

•

•

•

•

•

•••

••

•

•

•

•

•

•

Sgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand

∆ To be discontinued when present stock is depleted.* This gear has a keyway.

∆

*

*

•

••

••

•

••

•

•

••

•

40 40 40 40 40 50 50 50 60 60 60 60 60

80 80 80

100100100

10101515101216121218121812

142014

141425

––55––5––6–6–

–6–

–8–

––

2.32.3––

2.3––

2.8–

2.8–

–2.8–

–3.3–

See the previous page for mating worms



MATERIAL: Worm Gears – Aluminum Bronze or Aluminum Bronze with Gray Cast Iron Core

SPECIFICATIONS: ** Bore Tolerance: 10 mm +0.022/0 12, 14, 16 & 18 mm +0.027/0 20 mm +0.033/0

Thread Data

6.2963° 42'

12.6727° 25'

SingleThread

DoubleThread

LeadLead Angle

Metric

0 10

Metric

0 10

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15


16

7.8713° 52'

15.8537° 46'

SingleThread

DoubleThread

LeadLead Angle

Ø30

Ød

30°

75l2l1 S

Ø37

Ø42

30°

60l2S

30°

Ø30Fig. 1

Fig. 2

ØdØ37Ø42

twKEYWAY PROFILE

(Fig. 2)



SPECIFICATIONS: * Bore Tolerance: 14 & 16 mm +0.027/0

Thread Data

WORMS • MODULE 2.5

Catalog Number


A 1C 5MYK25RBA 1C 5MWK25RBA 1C 5MYK25LB

A 1C 5MYK25RCA 1C 5MWK25RCA 1C 5MYK25LC

dBore

H8S

l1HubProj.

l2HubProj.

w

• •

•

•

••

•

•

•

•

•

•

14

16

42

47

—

14

18

14

—

2.3

—

5



tSgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand


*

1-172REV: 4.13.16 KT

Metric

0 10

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15


16

WORM GEARS • MODULE 2.5



SPECIFICATIONS: ** Bore Tolerance: 12, 14, 15, 16 & 18 mm +0.027/0 20 & 25 mm +0.033/0

Thread Data

7.8713° 52'

15.8537° 46'

SingleThread

DoubleThread

LeadLead Angle

ØD

ØDØD

24 (TYP)

40

ØP.D.ØD1Ød

1624

ØP.D.ØD1Ød

40

ØP.D.ØD1Ød

1624

40(TYP)16 (TYP)

Ø90

Fig. 1

Fig. 2

Fig. 3

Fig. 412

Ød

2

GRAY IRONCASTING(Fig.'s 3 & 4)

twKEYWAY PROFILE

(Fig.'s 2, 3 & 4)SEE NOTE

No.of

TeethP.D. D

Dia.

D1HubDia.

20

30

40

50

12181218121420

14

15

25

153015

40

50

52

60

—6

—6

—

6

—

—

8

—8

—

—2.8—2.8

—

2.8

—

—

3.3

—3.3—

50

75

100

125

58.8

83.8

108.8

133.8

A 1B 6MYK25R020A 1B66MYK25R020A 1B 6MWK25R020A 1B66MWK25R020A 1B 6MYK25L020A 1B 6MYK25R030A 1B66MYK25R030A 1B 6MWK25R030A 1B 6MYK25L030

A 1B 6MYK25R040A 1B 6MYK25L040A 1B66MYK25R040A

A 1B 6MYK25R050A 1B66MYK25R050AA 1B 6MYK25L050


d**Bore

H8tw

Thread Data

•

•

•

•

••••

•

•

•

•

•

••

••

•••

•

•

•

•

•

••

•

Sgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand

Catalog Number

METRIC COMPONENT

••

*

*



* This gear has a keyway. See the previous page for mating worms

REV: 04.01.16 KT 1-173

Metric

0 10

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15


16

9.4473° 55'

19.0277° 50'

SingleThread

DoubleThread

LeadLead Angle

30°

Ø36 Ød

Ø44

Fig. 1

Fig. 2

l230°

KEYWAY PROFILE(Fig. 2) t

w

L

l1 S

Ø44

Ø50

Ød

Ll2S

30°

Ø36

Ød

Ø50



SPECIFICATIONS: * Bore Tolerance: 16 mm +0.027/0 20 mm +0.033/0

Thread Data

WORMS • MODULE 3

Catalog Number


A 1C 5MYK30RBA 1C 5MWK30RBA 1C 5MYK30LBA 1C 5MYK30RCAA 1C 5MWK30RCA 1C 5MYK30LC

dBore

H8SLFig.

No.l1

HubProj.

l2HubProj.

w

• •

•

•

••

••

••

••

16

20

1

2

50

55

70

85

—

15

20

15

—

2.8

—

6

Fig. 1 & 2 Worms – Right- and Left-Hand – Steel

tSgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand


*

1-174REV: 4.14.16 KT

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15

A


1-175

Metric

0 10




SPECIFICATIONS: ** Bore Tolerance: 16 mm +0.027/0 20, 25 & 30 mm +0.033/0 40 mm +0.039/0

Thread Data

9.4473° 55'

19.0277° 50'

SingleThread

DoubleThread

LeadLead Angle

ØD

ØD

ØP.D.

ØD

Fig. 1 Fig. 3 Fig. 5

Fig. 2 Fig. 4

GRAY IRONCASTING*(Fig.'s 3, 4 & 5)

L

ØD1

Ød

28 17

17

KEYWAY PROFILE(Fig.'s 2, 3 & 4)

SEE NOTEt

w

ØP.D.

ØD1

Ød

20

L

ØP.D.ØD1Ød Ød

28 17

L (TYP)28 (TYP)

Ød

Ø86

2

20

Ø108

12

L

2

20

Catalog Number

METRIC COMPONENT

∆ To be discontinued when present stock is depleted.* This gear has a keyway.

No.of

Teeth

Fig.No.

P.D.D

Dia.L

D1

HubDia.

20202020202525

303030303040404040505050

1212111

333334444555

16201620161616

162516251616253016164016

45454545454545

454545454548484848484848

48484848485555

555555555560606060707070

– 6– 6–––

– 8– 8–– 8 8––12–

–2.8–

2.8–––

–3.3–

3.3––

3.33.3––

3.3–

70.5 70.5 70.5 70.5 70.5 85.5 85.5

100.5100.5100.5100.5100.5130.5130.5130.5130.5160.5160.5160.5

A 1B 6MYK30R020A 1B66MYK30R020A 1B 6MWK30R020A 1B66MWK30R020A 1B 6MYK30L020A 1B 6MYK30R025A 1B 6MYK30L025

A 1B 6MYK30R030A 1B66MYK30R030A 1B 6MWK30R030A 1B66MWK30R030A 1B 6MYK30L030A 1B 6MYK30R040A 1B66MYK30R040A 1B66MYK30R040AA 1B 6MYK30L040A 1B 6MYK30R050A 1B66MYK30R050AA 1B 6MYK30L050

Fig. 1 & 2 Worm Gears – Right- and Left-Hand – Aluminum Bronze

Fig. 3, 4 & 5 Worm Gears – Right- and Left-Hand – Aluminum Bronze with Gray Cast Iron Core

d**Bore

H8tw

Thread Data

•

•

•

•

••••

•

•

••

•

••

••

•••

•

•

•

•

•

•••

••

••

Sgl.Thd.

Dbl.Thd.

Right-Hand

Left-Hand

∆ *

*

*

*

* ••

••

•

60 60 60 60 60 75 75

90 90 90 90 90120120120120150150150

•

See the previous page for mating worms

Metric

0 10

I

R

1

2

3

4

5

6

7

8

9

10

11

12

13

T

14

15


16

ØD

S1

Ød1

ØP.D.

ØD

ØP.D.

Fig. 1

Fig. 2

ØD1Ød

lS

ØD1Ød

lS

Catalog Number


A 1C 6MYK20R020A 1C 6MWK20R020A 1C 6MYK20R025A 1C 6MYK20R030A 1C 6MWK20R030A 1C 6MYK20R040A 1C 6MYK20R050A 1C 6MYK20R060A 1C 6MYK20R080A 1C 6MYK20R100

A 1C 6MYK30R020A 1C 6MWK30R020A 1C 6MYK30R025A 1C 6MYK30R030A 1C 6MWK30R030A 1C 6MYK30R040A 1C 6MYK30R080

No.of

TeethP.D. D

Dia.

SFace

Wdth.

dBore

H8

Fig.No.

•

••

•••••

•

••

••

20

25

30

40 50 60 80100

20

25

30

40 80

40

50

60

80100120160200

60

75 90

120240

46.5

57

67

88108128168208

70

85

100

131251

10

12

14

19

16

22

16

18

20

24

28

30

38

40

45

50

5455

48

55

6070

14

15

18

15

18

20

—

8

—

810

—

70 90110150190

—

106224

1

2

1

2

lHubProj.

D1HubDia.

S1d1

Dia.Sgl.Thd.

Dbl.Thd.

Module 3

•

•

•

•

Module 2

RIGHT-HAND20° PRESSURE ANGLE

MATERIAL: Cast Iron

SPECIFICATIONS: * Bore Tolerance: 10 mm +0.022/0 12, 14 & 16 mm +0.027/0 19, 20, 22 & 25 mm +0.033/0

For Module 2 worm gears, select right-handsingle or double thread worms on page 1-170.For Module 3 worm gears, select right-handsingle or double thread worms on page 1-174.

WORM GEARS • MODULE 2 & 3

*

*

* To be discontinued when present stock is depleted.

1-176REV: 04.14.16 KT

Documents

R 20° PRESSURE ANGLE - Timing Belts and Pulleys · Fig. 2 Worm Gears – With Keyway – Right-Hand – Aluminum Bronze d Bore H8 d Tolerance Thread Data Sgl. Thd. Dbl. Thd. Metric