asme b29.2m-1982(r1999)
TRANSCRIPT
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A M E R I C A NA T I O N A LT A N D A R D
Inverted Tooth (Silent)
Chains
and
Sprockets
ANSI B29.2M
-
1982
FOR CURRENTCOM MllTEE PERSONNEL
PLEASE SEE ASME MANUAL S-I 1
P U B L I S H E D
Y
T H EA M E R I C A N O C I E T Y O F M E C H A N I C A L N G I N E E R S
Unitedngineeringenter 34 5 East 47thtreet N ew York, N.Y. 10017
REAFFIRMED 2004
FOR CURRENT COMMITTEE PERSONNEL
PLEASE E-MAIL [email protected]
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FOREWORD
[This Foreword is not part of American National Standa rd, Inverted Tooth (Si lent)
Chains and Sprockets, AN SI 829.2M-1982.1
Preparatory work during the late 1930’s and early 1940’s by the Silent Chain Division of the
Association of Roller and Silent Chain Manufacturers (ARSCM) (now the American Chain
Association) resulted in agreement on stand ardiz ation of silent chain primarily on the basis of
standardizedspro cket ooth design. Since individual chain man ufac turersemployed various
chain join t designs, it was agreed that stan dard s on chain detail wo uld be limite d to insure inter-
changeability of chains on sprockets ofany number of teeth. At a meeting of representatives of
all major American silent chain manu facturers in Septembe r 1944, unde r the auspices of the
ARSCM , recommend ed “Engineering S tand ards for Industrial Silent Chain and Sprock ets” were
agreed upon. Formulas for sprocket design were expan ded nto tables which were approved
andadoptedby he ARSCM in April 1945. Supplementary nformationonsprocket ooth
cutters was added and all of the data were incorporated in a comprehensive repor t, Industrial
Standards for Industrial Silent Chains, Sprock ets and Cutters. This report, with further refine-
ments by minor revisions in 1949 and 1950, was then submitted to the Sectional Committee for
review and approval as an American Stand ard.
The Sectional C omm ittee accepted the recommendation s with some minor revisions in 1950,
and referred it to TheAmerican Soci ety of Mechanical Engineers and the Society of Automo tive
Engineers for their approval as sponsors of the Comm ittee, and subsequen t transmission to th e
American S tand ards Association for final acceptance as an American Standar d. Afte r approval
by ASME and SAE, it was acceptedby ASA on Novem ber 9, 1950, as American Standard
B29.2.
In 1956, the Sectional Committee authorized
a
revision to the standard to bring it up to date .
The revised standard was approved by the Am erican Standards Association o n July 11 ,
1957.
This revision has been in use for man y years, and was reaffirmed by th e American National
Standards Institute on January 4 , 1971 . (ASA became ANSI in 1 969.)
In 1945, the formulation of a recommended standard for “small pitch” silent chain (pitch
sizes less than 3 / ~ n.) and sprocket tooth form became a matter of consideration by ARSCM’s
Silent Chain Division. As in the case of the larger chain series, th e objective was to provide
interchangeability of chains on sprockets, and th e development of recommended practices for
power transmission ratings and selection procedure. Afte r a num ber
of
years of usage as an
ARSCM Industrial Stand ard, the recomm endations became American Standard B29.9 in 1958.
Although it was originally anticipated that there might be a need for tw o
or
three pitch sizes of
the miniature silent chains, only one, the /1.5 in. size, has been developed.
The nformation whichhas heretofore beenpublished as B29.9 was incorporated in the
basic Silent Chain Standard, B29.2, as part of this present revision and mod ernization of both
documents.
This Standard was approved by the American N ational S tandard Institute December 21,1982.
111
...
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A MER IC A N N A TION A L STA N D A R D S C OMMITTEE
B29
Chains, Attachments, and Sprock ets or Power Transmission and Conveying
(The following s the roster of
the
committee at h e time of theapproval of this Standard.)
OFFICERS
W. R. Edger ton, Chairman
C. B. Norberg, Vice Chairman
W. R . Daisak, Secretary
COMMITTEE PERSONNEL
AMERICAN CHAIN ASSOCIATION
W.
R . Edgerton, Whitney Chain Operations, Dresser Industries, Inc., Hartf ord, Connect icut
L. E. Hampel, Moline Malleable IronCo., St. Charles, Ill inois
J.
M.
Lewis, Webster Manufacturing, Inc., Tiffi n, Ohio
C .
B. Norberg, Morse Indus trial Corp., Ithaca, New York
V.
D.
Petershack, Rexnor d Inc., Milwaukee, Wisconsin
AMERICAN PETROLEUM INSTITUTE
R.
K.
Doak, Rexnord Inc., Houston, Texas
J. M. Spanhel, Alternate, American Petroleum Institute, Dallas, Texas
AMERICAN SOCIETY
OF
AGRIC ULTUR AL ENGINEERS
G. G .
Worsley, Rexnord Inc., Dolton, Illinois
AMERICAN SOCIETY OF MECHANICAL ENGINEERS, THE
R.
J. Bartow, Clark Equipment Company, Battle Creek, Michigan
E.B. Beardslee, Beardslee Transmission Equipment Co., L ong Island Cit y, New York
D.
N.
Zwiep, Worcester Polytechnic Institute, Worchester, Massachusetts
CONVEYOR EQUIPMENT MANUFACTURERS ASSOCIATION
G. F.
Plank. Dresser Industries, Inc., Morristown, Tennessee
V.
D. Petershack,A/ternate , Rexnord Inc., Milwaukee, Wisconsin
INDUSTRIAL TRUCK ASSOCIATION, THE
L.
L. Bergonia, Allis-Chalmers, Matteson, Illinois
METAL CUTTING TOOL INSTITUTE
W.
L.
Janninck, Illinoi s Tool Works, Inc., Chicago, Illinoi s
N. F.Nau, Alternate, UT D Corp., Atho l, Massachusetts
N.Y.C. DEPT. OF WATER RESOURCES
J.
T.
Miller, Bureau of Water Pollution Control, New York, New York
SOCIETY
OF
AUT OMOT IVE ENGINEERS, INC.
D.
C. Heitshu, Midlothain, Virginia
M.
L.
Love, John Deere Harvester Works, East Moli ne, Il linois
U.S.DEPARTMENT OF
THE ARMY
F.
M.
Cefola, U.S . Army Mobility Eq., Ft. Belvoir, Virginia
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PERSONNEL OF SUBCOMMITTEE ON INVERTED TOOTH (S ILENT) CHAIN
C. L. Granger, Chairman, Ramsey Products Corp., Charlot te, North Carolina
W.
R .
Edgerton , Whitney Chain Operations, Dresser Industries, Hartfo rd, Connecti cut
C. B. Norberg, Morse Indus trial Corp., Ithaca, New York
J.
H. Peck, P T Components, Inc., Indianapol is, Indiana
G.
A.
Zimrner, Morse Industrial Corp., Ithaca, New York
vi
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CONTENTS
...
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
111
StandardsCommittee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
v
1 Silent Chains
. . . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . .
1
1.1omenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Generalonfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Numberingystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.4
Tolerance for Chain Length
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1.5 Measuring Loads
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1.6 General Chain Dimensions for
3/8
in
.
Pitch Chain and Larger
. . . . . . . . . . .
3
1.7 Chain Widths and Sp rocke t Face Profiles for
3/8
in
.
Pitch Chain and
Larger
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
1.8 Chain Widths and Sprocket Face Profile for 3/16 in .Pitch Chain . . . . . . . . . 10
2.1 Too th Form Dimensions for 3/8 in .Pitch Chain an d Larger . . . . . . . . . . . . 1 2
2.2 Too th Form Dimensions for 3/16 in
.
Pitch Chain . . . . . . . . . . . . . . . . . . . 1 3
2.3 Diameters and Measuring Dimensions
for 3/8
in .Pitch Chain and Larger
. . . .
1 4
2.4 Diameters and Measuring Dimensions for
3/16
in .Pitch Chain . . . . . . . . . . . 1 5
3/8 in .Pitch Chain and Larger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6
3/16 in .Pitch Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7
2.7 Hub Diameters for 3/8 in
.
Pitch Chain a nd Larger . . . . . . . . . . . . . . . . . . . 1 8
2 Sprockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2
2.5 Tolerances for Diameters, Over Pin Dimensions, and Eccentricity for
2.6 Tolerances for Diameters, Over Pin Dimensions, and Eccentricity for
2.8 Tab ulatio n of Pitch Diameter, Outside Diameter, Over Pin Dimensions,
and G uide Groov e Diameter for Chain of Unity P itch (Applicable to
3/8 in .Pitch Chain and Larger) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
and Guide Groove Diameter for 3/16 in .Pitch Chain . . . . . . . . . . . . . . . 22
2.9 Tabulation of Pitch D iame ter, Outside Diameter, Over Pin Dimensions,
NOTE:
Also
included in this publication on the pages following Page 24 is certain “Sup-
plementary Info rmati on” which contain s suggestions relative
to
the application and use
of the chains covered by this Standa rd.
vii
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ANSIB29.2M-1982
AMERICAN NATIONAL STANDARD
INVERTED TOOTH (SILENT)
CHAINS ANDSPROCKETS
1
SILENT CHAINS
1.1 Nomenclature
( a )
Silent chain is a series of toothed links alternately
assembled with pins or acombination of joint com-
ponents in such a way that the jointarticulates between
adjoining pitches.
As
shown in Fig. l .l(a )-1 , side guide
silent chain has guide links which straddle the sprocket
sides to con trol the chain laterally. As shown in Fig.
l.l(a )-2, center guide silent chain has guide links which
run within a circum ferential groove or grooves for lateral
control.
( b ) Typical Links. Since joint com ponents, connectors,
and offset sections vary with each manufacturer, these
items are no t included in this standardization. See Fig.
1 l(b)
for examples of typical
links.
1.2
General Configuration
Link contour may vary but must engage standard
sprocket teeth
so
that joint centers lie on sprocket
pitch circle.
(a ) in. Pitch ChainandLarger.
Chain widths equal
to, or exceeding,
2
times the pitch have center guides.
Narrower chains may be side guide or center guide.
Chain widths exceeding
16
times the pitch are not
recommended.
( b ) 3II6
in. Pitch Chain.
Chainmaybesideguide
or
center gu ide as indicated in Tables
1.8-1
and 1.8-2.
(c) Maximum chain width should be limited to ap-
proximately 8 times the pitch.
1.3 Numbering System
( a ) 318 in Pitch Chain and Larger. Two letters SC as a
prefm, o ne or two numerals indicating pitch in eighths
of an inch, and two or three num erals indicating nominal
chain width in quarters of
an
inch. Thus SC302 desig-
nates
a
silent chain,
3/8
in. pitch by l/2 in. nominal width,
and SC1012 designates a silent chain, 11/4 in. pitch by
3 in. nominal width.
( b ) 3/16 in. Pitch Chain.
Two letters SCas a prefix, a
zero followed by a numeral indicating pitch in sixteenths
of an inch, and two numerals indicating nominal width
of chain in thirty-seconds
of
an inch. Thus SC0309
designates a silent chain,
3/16
in. pitch by
9/32
in. nominal
width.
NOTE: Where links are all of equal thickness 0.030 in.
(0.76
mm), it is understood tha t the width ndication
also designates the otal number of links across the
width of the chain.
1.4
Tolerance
for
Chain
Length
( a ) 318 in. Pitch Chain and Larger.
Chains will be de-
signed and manufactured to fit gage sprockets. Tolerance
for chain length for new chains may beover nominal
length 0.030 in./ft (0.76 mm/ft), but must not be under-
length.
( b )
3 / 26
in. Pitch Chain. Chain length tolerance is 0.020
in./ft (0.5 1 mm /ft) over nominal length, but m ust no t be
underlength.
1.5
Measuring Loads
( a )
318 in.
Pitch Chain and Larger.
Chain should be
measured under load of 25 lb
X
pitch in inches X width
in inches
t 2 0
lb (0.1724
N
X
pitch in mm
X
width in
mm +89 N). Length measurements are to be taken over
a length of at least 12 in. (300 mm).
( b ) 3/16
in. Pitch Chain.
The measu ring load for 3/16 in.
pitch silent chain shall be approximately equal to
1
lb
(4.45 N) for each link in the total chain width, Le., the
load for SC 0315 would be 15 lb (67 N). Length mea-
surements are
to
be taken over a length of at least 12
in.
(300 mm).
1
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ANSIB29.2M-1982
AMERICAN NATIONAL STANDARD
INVERTED TOOTH (SILENT) CHAINS AND SPROCKETS
FIG.
l . l ( a ) - I
SIDE GU IDE SILENT CHAIN
FIG. I.l(a)-2 CENTER GUIDE SILENT CHAIN
FIG. l . l ( b ) TYPICALLINKS
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AM E RI CAN NAT I ONAL S T ANDARD
INVERTED TOOTH (S ILENT) CH AINS A ND PROCKETS
ANSI B29.2M-1982
1.6 General Chain Dimensions for
3/8
in. Pitch Chain and Larger
L
itch P
Minimum
Chordal pitch line
GENERAL NOTE:
Minimum crotch height
=
0.062
X
chain pitch
FIG.
1.6 LINK
FORM
TABLE 1.6-1
CHAIN LINK DATA NCHES
Chain Num berin.
(Width in
/4
in.) Chain Pitch Stamprotch Height
s c 3 0.375
SC3 or 3 0.0232
s c 4 0.500
SC4 or 4 0.031
0
s c 5 0.625 SC5 or 5
0.0388
SC6 0.750
SC6
or
6 0.0465
SC8 1 ooo
SC8 or 8
0.0620
SClO 1.250
SC10or 10 0.0775
sc12
1s o 0
SC12or 1 2 0.0930
SC16.000
SC16
or
16
0.1 240
TABLE 1.6-2
CHAIN LINK DATA -MILLIMETERS
Chain Numberin.
(Width in /4 in.) Chain Pitch Stamprotch Height
s c 3
s c 4
s c 5
SC6
SC8
SC10
sc12
SClO
9.5
2
12.70
15.88
19.05
25.40
31.76
38.10
50.80
SC3 or 3
SC4 or 4
SC5
or
5
SC6
or
6
SC8 or 8
SC10or 10
SC12or 12
SC16 or 16
0.589
0.787
0.985
1.181
1.5 74
1.968
2.302
3.149
3
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A N S I B29.2M-1982
A M E R I C A N N A T I O N A L S T A N D A R D
I N V E R T E D T O O T H ( S I L E N T ) C H A I N S ND SPROCKETS
1.7 Chain Widths
and
Sprocket Face
Profdes
for
3/8
in. P itch Chain and Larger
atH
Side Guide
[ N o t e 211
Lf I
Q
Center Guide
G
[ N o t e
Double Guide
GE N E R A L N OT ES :
(a) All sprockets should be marked wi th comp lete chain numbe r and numbe r
f
teeth. Example:
(b) The maximum radius ver a new chainengaged on a sprocke t wi l l not xceed the sprocket pi tch
SC304-25.
radius
plus 75%
of the cha in p i t ch.
NOTES:
1)
M
equals maxim um overall width of chain.
2)
Side guide chains have single outside guides
of
same thickness as toothe d l inks .
(3)Groov ing too l may be e i therquare or round end bu t groove must be f u l l w i d t h dow n t oiameter
G.
Fo r values
of G
ee Table 2.8.
FIG. 1.7
CHAIN WIDTHS AND SPROCKET PROFILES
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AMERICAN NATIONAL STANDARD
INVERTED TOOTH (SILENT) CHAINS ANDPROCKETS
ANSI B29.2M-1982
TABLE 1.7-1
CHAIN
WIDTHS
AND SPROCKET FACE DIMENSIONS NCHES
Chain
M F W
Number Chain
Max. C
D
+O.
I 2 5
H
R +0.010
[Note (1 ] PitchypeNote (2)]
A t0.005
+0.010
-0.000
t0.003 t0.003
-0.000
X 3 0 2
SC303
SC304
SC305
SC306
SC307
SC308
SC309
SC310
SC3 12
SC316
SC320
SC3 24
SC402
S a 0 3
SC404
SC405
X 4 0 6
SC407
SC408
SC409
SC410
SC4 11
SC4 12
SC414
SC416
SC420
X 4 2 4
SC432
SC504
X 5 0 5
SC506
SC507
SC508
SC5 10
SC5 12
X 5 1 6
SC520
SC524
SC528
SC532
X 5 4 0
SC604
SC605
SC606
SC608
SC610
X 6 1 2
X 6 1 4
SC616
SC620
SC624
X 6 2 8
SC632
0.375
0.3 75
0.375
0.375
0.375
0.375
0.375
0.3 75
0.375
0.375
0.375
0.375
0.375
0.500
0.500
0.500
0.500
0.500
0.500
0.5
00
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.625
0.625
0.625
0.625
0.625
0.625
0.625
0.625
0.625
0.625
0.625
0.625
0.625
0.750
0.750
0.750
0.750
0.750
0.750
0.750
0.750
0.750
0.750
0.750
0.750
Side guide3
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Side guide3
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center
guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
0.594
0.844
1.094
1.344
1.594
1.844
2.094
2.344
2.594
3.094
4.094
5.094
6.094
0.750
0.875
1.125
1.375
1.625
1.875
2.1 25
2.375
2.625
2.875
3.1 25
3.625
4.1
25
5.125
6.1 25
8.1 25
1.156
1.406
1.656
1.906
2.156
2.656
3.1 56
4.1 56
5.156
6.1 56
7.1 56
8.1 56
10.1 56
1.187
1.437
1.687
2.1 87
2.687
3.1 87
3.687
4.1 87
5.1 87
6.1 87
7.1 87
8.1 87
0.1
3 3
0.133
0.133
0.133
0.133
0.1 33
0.133
0.1 33
0.133
0.133
0.133
0.133
0.133
0.133
0.133
0.133
0.133
0.133
0.1 33
0.133
0.133
0.133
0.1 33
0.133
0.1 33
0.133
0.1 33
0.133
0.133
0.1 77
0.177
0.1 77
0.1
7 7
0.177
0.177
0.1 77
0.177
0.1 77
0.177
0.1 77
0.177
0.1 77
0.274
0.2 74
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.100
0.1
00
0.1 00
0.1 00
0.1 00
0.1 00
0.1
00
0.1
00
0.1
00
0.1
00
0.1
00
0.1 00
...
...
0.1
00
0.1 00
0.1 00
0.1 00
0.1
00
0.1
00
0.1 00
0.1 00
0.1
00
0.1 00
0.1
00
0.1 00
0.1
00
0.100
0.100
0.125
0.1 25
0.1 25
0.125
0.1 25
0.1 25
0.1 25
0.1 25
0.1 25
0.1 25
0.1 25
0.1 25
0.1 25
0.1 80
0.180
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
...
...
...
...
...
. ..
...
...
1 ooo
1
ooo
1 ooo
1.000
. . .
...
...
. . .
...
. . .
...
. . .
...
. . .
...
...
1 ooo
1 ooo
1
ooo
1.ooo
...
. . .
...
...
...
. . .
...
. . .
2.000
2.000
2.000
2.000
2.000
. . .
. . .
. . .
...
. . .
...
...
. . .
...
...
...
4.000
4.000
0.750
1
ooo
1.250
1s o 0
1.750
2.000
2.250
2.500
3.000
4.000
5.000
6.000
...
...
0,750
1.000
1.250
1.500
1.750
2.000
2.250
2.500
2.750
3.000
3.500
4.000
5.000
6.000
8.000
1
ooo
1.250
1.500
1.750
2.000
2.500
3.000
4.000
5.000
6.000
7.000
8.000
IO.000
1
ooo
1.250
1.500
2.000
2.500
3.000
3.500
4.000
5.000
6.000
7.000
8.000
0.051
...
. . .
...
...
...
. ..
...
...
...
...
...
. . .
0.051
...
...
...
...
...
. . .
...
. . .
...
. . .
. . .
...
...
...
. . .
...
. . .
...
. . .
...
. . .
...
. . .
...
...
...
...
...
...
...
. . .
...
...
...
...
...
...
...
. . .
. . .
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.250
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.41
0
...
. . .
..
. . .
...
...
. . .
...
. . .
...
. .
...
0.41
0
..,
. . .
..
...
...
...
...
. . .
...
. . .
. . .
...
. . .
...
. - .
...
..
...
. . .
...
..
...
...
. . .
...
...
. . .
..
.
. . .
...
..
...
...
..
. . .
. . .
...
. . .
...
. . .
5
-
8/9/2019 ASME B29.2M-1982(R1999)
12/49
ANSI B29.2M-1982
AMERICAN NATIONAL STANDARD
INVERTED TOOTH SILENT ) CHAINS AND PROCKETS
TABLE
1.7-1 (CONT D)
Chain
M F W
Numberhain Max.
C
D +0.125 H R +0.010
[Note
( I ) ]
Pitch
Type
[Note2)]
A 0.005
+0.010
-0.000 +0.003 20.003 -0.000
X 6 3 6
SC640
SC648
SC808
SC810
SC812
SC816
SC820
SC824
SC828
SC832
SC836
SC840
SC848
SC856
56864
sc1010
sc1012
SC101 6
sc1020
SC1024
SClO28
SC1032
SClO36
SC1040
SC1048
SC1056
SC1064
SC1072
SC1080
sc1212
SC1216
SC1220
SC1224
SC1228
SC1232
SC1236
SC1240
SC1248
X 1 56
SC1264
SC1272
SC1280
SC1288
SC1296
SCl616
SC1620
SC1624
SC1628
SCl632
SCl640
SC1648
SC1656
SC1664
0.750
0.750
0.750
1 ooo
1
ooo
1
ooo
1 ooo
1
ooo
1
ooo
1
ooo
1
ooo
1
ooo
1
ooo
1
ooo
1.000
1
ooo
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.250
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
1.500
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
2.000
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center'guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Double guide
9.1 87
10.1 87
12.1 87
2.250
2.750
3.250
4.250
5.250
6.250
7.250
8.250
9.250
10.250
12.250
14.250
16.250
2.81 2
3.31 2
4.3 12
5.31 2
6.31 2
7.31 2
8.31 2
9.31 2
10.31 2
12.31 2
14.31 2
16.31 2
18.31 2
20.31 2
3.375
4.375
5.375
6.375
7.375
8.375
9.375
10.375
12.375
14.375
16.375
18.375
20.375
22.375
24.375
4.500
5.500
6.500
7.500
8.500
10.500
12.500
14.500
16.500
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.274
0.1 80
0.1 80
0.1 80
0.1 80
0.1
80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.180
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1
80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1
80
0.1
80
0.1
80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.1 80
0.21 8
0.21 8
0.21 8
0.21 8
0.21 8
0.21 8
0.21 8
0.21 8
0.218
4.000
4.000
4.000
...
. . .
. . .
. . .
...
4.000
4.000
4.000
4.000
4.000
4.000
4.000
...
. . .
. . .
. . .
...
. . .
. . .
4.000
4.000
4.000
4.000
4.000
4.000
4.000
4.000
...
...
...
. . .
4.000
4.000
4.000
4.000
4.000
4.000
4.000
4.000
4.000
4.000
...
...
...
...
4.000
4.000
4.000
4.000
4.000
. . .
9.000
10.000
12.000
2.000
2.500
3.000
4.000
5.000
6.000
7.000
8.000
9.000
10.000
12.000
14.000
16.000
2.500
3.000
4.000
5.000
6.000
7.000
8.000
9.000
10.000
12.000
14.000
16.000
18.000
20.000
3.000
4.000
5.000
6.000
7.000
8.000
9.000
10.000
12.000
14.000
16.000
18.000
20.000
22.000
24.000
4.000
5.000
6.000
7.000
8.000
10.000
12.000
14.000
16.000
...
. . .
. . .
...
. . .
...
...
...
. . .
...
...
...
...
...
...
...
. . .
...
. . .
..
. . .
...
...
. . .
...
...
. . .
. . .
...
. . .
. . .
...
...
...
...
...
. . .
...
...
. . .
...
. . .
. . .
. . .
...
...
. . .
...
. . .
. . .
...
...
...
...
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
0.360
...
. . .
...
. . .
...
...
...
..
. . .
. . .
. . .
. . .
...
..
.
..
...
...
. . .
...
. . .
...
...
...
. . .
...
..
. . .
...
...
..
. . .
..
...
...
...
. . .
..
. . .
. . .
...
. . .
. . .
. . .
...
..
. . .
. . .
..
.
..
..
...
...
. . .
...
6
h QÆRN«• Q w w w . b z f x w . c o m QM 9N }
-
8/9/2019 ASME B29.2M-1982(R1999)
13/49
A M E R I C A N N A T I O N A L S T A N D A R D
I N V E R T E D T O O T H ( S I L E N T ) C H A I N S A N D P R OC KE TS
ANSI B29.2M-1982
TABLE 1.7-1 (CONT’D)
Chain M F W
Number
D
+0.125
H
R +0.010
[ N o t e ( l ) ] PitchypeNote
2)]
A
20.005
t0.010 -0.000 20.003
k 0 . 0 0 3
-0.000
SC1672 2.000 Doub leuide8.500 0.274 0.218 4.000 18.000 . 0.360
SC1680 2.000 Doub leuide 20.500 0.274 0.218 4.000 20.000
.
0.360
SC1688 2.000 Doub leuide 22.500 0.274 0.218 4.000 22.000 . 0.360
SC1696 2.000 Doub leuide 24.500 0.274.218 4.000 24.000 . .. 0.360
SC161
20
2.000 Doub le guide 30.500 0.274 0.218 4.000 30.000 . . . 0.360 .. .
...
. . .
...
. . .
NOTES:
(1) Consult manufacturers’catalogs for available widths.
(2 ) M equals maximum overal l width
of
chain.
(3) Side guide chains have single outside guides of same thickness on toothed l inks.
TABLE 1.7-2
CHAIN WIDTHS AND SPROCKET FACE DIMENSIONS MILLIMETERS
Chain
Number
[Note
(1
SC302
SC303
SC304
SC305
SC306
SC307
SC308
SC309
SC310
SC312
SC3 16
SC320
SC324
SC402
SC403
SC404
SC405
X 4 0 6
SC407
SC408
SC409
5 x 4 1 0
SC411
SC412
SC414
SC416
SC420
SC424
X 4 3 2
SC504
SC505
SC506
SC507
SC508
SC510
M F W
Chain Max.
C
D +3.18
H
R
+0.25
PitchypeNote (2)] A 20.13 20.25 -0.00 kO.08 kO.08 -0.00
9.52
9.5 2
9.52
9.52
9.52
9.52
9.52
9.52
9.52
9.52
9.52
9.5 2
9.52
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
15.88
15.88
15.88
15.88
15.88
15.88
Side guide3
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Side guide3
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
15.09
2 1.44
27.79
34.14
40.49
46.84
53.19
59.54
65.89
78.59
103.99
129.39
154.79
19.05
22.22
28.58
34.92
41.28
47.62
53.98
60.32
66.68
73.02
79.38
92.08
104.78
130.1 8
155.58
206.38
29.36
35.71
42.06
48.41
54.76
67.46
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
3.38
4.50
4.50
4.50
4.50
4.50
4.50
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
. . .
. . .
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
3.1 8
3.1 8
3.18
3.18
3.1 8
3.18
..
. . .
. . .
. . .
. . .
...
...
. . .
25.40
25.40
25.40
25.40
. . .
. . .
. . .
...
. . .
...
...
. . .
. . .
. . .
...
...
25.4
25.4
25.4
25.4
. . .
.
..
...
...
. . .
. . .
. . .
19.05
25.40
31.75
38.1
0
44.45
50.80
57.15
63.50
76.20
101.60
127.00
152.40
...
. . .
19.05
25.40
31.75
38.1
0
44.45
50.80
57.1 5
63.50
69.85
76.20
88.90
101.60
127.00
152.40
203.20
25.40
31.75
38.1 0
44.45
50.80
63.50
1.30
. ..
. . .
...
...
. . .
...
. . .
...
. . .
. . .
...
. . .
1.30
. . .
. ..
...
...
...
...
...
. . .
...
. . .
. ..
...
. . .
...
...
.
..
...
...
. . .
...
...
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
5.08
6.35
6.35
6.35
6.35
6.35
6.35
10.41
. . .
. . .
. . .
. . .
. . .
...
. . .
...
...
. . .
. . .
...
10.41
...
. . .
...
...
. . .
...
. . .
...
...
...
. . .
...
...
. . .
. . .
. . .
. . .
...
...
. . .
. . .
I
-
8/9/2019 ASME B29.2M-1982(R1999)
14/49
ANSI B29.2M-1982
AMERICAN NATIONAL STANDARD
INVERTED TOOTH (SILENT) CHAINS AND PROCKETS
TABLE
1.7-2
(CONT’D)
Chain
M
F
W
Numberhain
Max. C D
+3.18
H R +0.25
[Note ( l )] Pitch
Type
[Note2)]
A
t0.13
i0.25
-0.00
20.08
k0.08
-0.00
s c 512
SC5 16
SC520
SC524
SC528
SC532
SC540
SC604
SC605
SC606
SC608
SC610
SC612
SC614
SC616
SC620
X 6 2 4
SC6 28
SO632
SC636
SC640
SC648
SC808
SC810
SC812
SC816
SC820
SC824
SC828
X 8 3 2
SC836
SC840
SC848
SC856
SC864
sc1010
sc1012
SC1016
sc1020
SC1024
SC1028
SC1032
SC1036
SC1040
SClO48
SC1056
SClO64
SC1072
SC1080
sc1212
SC1216
sc1220
SC1224
SC1228
15.88
15.88
15.88
15.88
15.88
15.88
15.88
19.05
19.05
19.05
19.05
19.05
19.05
19.05
19.05
19.05
19.05
19.05
19.05
19.05
19.05
19.05
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
3 1.75
31.75
31.75
31.75
31.75
31.75
31.75
31.75
3 1.75
31.75
31.75
31.75
31.75
31.75
38.1
0
38.1 0
38.1
0
38.1 0
38.1
0
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center
guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double
guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Center guide
80.16
105.56
130.96
156.36
181.76
207.16
257.96
30.15
36.50
42.85
55.55
68.25
80.95
93.65
106.35
131.75
157.1 5
182.55
207.95
233.35
258.75
309.55
57.15
69.85
82.55
107.95
133.35
158.75
184.1 5
209.55
234.95
260.35
311.15
361.95
41 2.75
71.42
84.1 2
109.52
134.92
160.32
185.72
211.12
236.52
261.92
31 2.72
363.52
414.32
465.1 2
515.92
85.72
111.12
136.52
161.92
187.32
4.50
4.50
4.50
4.50
4.50
4.50
4.50
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
3.18
3.1 8
3.18
3.18
3.18
3.18
3.18
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.51
4.57
4.51
4.57
4.57
4.5
1
4.57
4.57
4.57
4.57
4.57
4.51
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
8
...
...
50.80
50.80
50.80
50.80
50.80
...
...
...
...
...
. . .
...
. . .
. . .
...
101.60
101.60
101.60
101.60
101.60
. . .
. . .
. . .
...
...
101.60
101.60
101.60
101.60
101.60
101.60
101.60
...
...
...
...
. . .
...
. . .
101.60
101.60
101.60
101.60
101.60
101.60
101.60
101.60
...
...
...
. . .
. . .
76.20
101.60
127.00
152.40
177.80
203.20
254.00
25.40
31.75
38.10
50.80
63.50
76.20
88.90
101.60
127.00
152.40
177.80
203.20
228.60
254.00
304.80
50.80
63.50
76.20
101.60
127.00
152.40
177.80
203.20
228.60
254.00
304.80
355.60
406.40
63.50
76.20
101.60
127.00
152.40
177.80
203.20
228.60
254.00
304.80
355.60
406.40
457.20
508.00
76.20
101.60
127.00
152.40
177.80
...
...
...
...
...
...
.
.
.
..
...
...
. ..
. . .
...
...
...
...
. ..
...
...
...
...
. .
...
...
...
. ..
...
. ..
. ..
...
. . .
.
.
. ..
...
...
...
. ..
. ..
. . .
. ..
...
. . .
...
. ..
...
. . .
. .
. . .
.
..
...
...
. ..
. . .
...
6.35
6.35
6.35
6.35
6.35
6.35
6.35
9.14
9.14
9.1 4
9.1 4
9.1 4
9.14
9.14
9.14
9.1 4
9.1 4
9.14
9.14
9.14
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.1 4
9.14
9.14
9.14
9.14
9.14
9.1 4
9.14
9.14
9.1 4
9.14
9.1 4
9.14
9.14
...
...
...
...
...
...
...
...
...
...
...
...
...
...
. . .
...
...
...
. . .
...
...
..
...
...
. . .
...
. . .
. . .
. . .
...
...
.
..
. . .
...
...
...
...
...
. . .
. ..
...
...
...
...
...
...
...
...
...
...
...
...
. . .
...
h Q Æ R N « •Q w w w . b z f x w . c o m Q M 9 N }
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15/49
AMERICAN NATIONAL STANDARD
INVERTED TOOTH (SILENT) CHAINS ANDPROCKETS
TABLE 1.7-2 CONT’D)
ANSI
B29.2M-1982
Chain
M
F
W
Number Chain Max. C D +3.18 H R
+0.25
[Note
( l ) ]
PitchypeNote 2)] A
k0.13 t0 .25
-0.00 kO.08 tO.08 -0.00
SC1232
SCl236
SCl240
SCl248
SC1256
SCl264
SC1272
SCl280
SC1288
SC1296
SC1616
SC1620
SC1624
SC1628
SC1632
SC1640
SCl648
SC1656
SC1664
SC1672
SC1680
SC1688
SC1696
SC16120
38.10
38.1 0
38.10
38.1
0
38.1
0
38.10
38.10
38.10
38.10
38.1
0
50.80
50.80
50.80
50.80
50.80
50.80
50.80
50.80
50.80
50.80
50.80
50.80
50.80
50.80
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Center guide
Center guide
Center guide
Center guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
Double guide
212.72
238.12
263.52
314.32
365.12
41 5.92
466.72
517.52
568.32
61 9.1
114.30
139.70
165.10
190.50
215.90
266.70
31
7.50
368.30
41 9.1
469.90
520.70
571
.SO
622.30
774.70
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
6.96
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
4.57
5.54
5.54
5.54
5.54
5.54
5.54
5.54
5.54
5.54
5.54
5.54
5.54
5.54
5.54
101.60
101.60
101.60
101.60
101.60
101.60
101.60
101.60
101.60
101.60
...
..
..
101.60
101.60
101.60
101.60
101.60
101.60
101.60
101.60
101.60
101.60
..
203.20
228.60
254.00
304.80
355.60
406.40
457.20
508.00
558.80
609.60
101.60
127.00
152.40
177.80
203.20
254.00
304.80
355.60
406.40
457.20
508.00
558.80
609.60
762.00
.
..
. . .
. . .
. . .
. . .
. . .
...
. . .
...
.
..
. . .
...
...
. . .
...
...
. . .
. . .
...
. . .
...
. . .
9.1 4
...
9.1 4
. . .
9.1 4 ...
9.14
. . .
9.14
...
9.1 4 . . .
9.1 4
...
9.14
. ..
9.1 4
. . .
9.1 4
. . .
9.1 4
. . .
9.1 4
. ..
9.14
...
9.1 4
..
9.14
...
9.14
...
9.1 4
...
9.1 4
...
9.1 4
. . .
9.1 4
...
9.1 4 . ..
9.1 4 ...
9.1 4
...
9.1 4
...
NOTES:
1) Consult manufacturers’catalogs for available widths.
2)
M equals maximum overall width o f chain.
3) Side guide chains have single outside guides of same thickness as toothed links,
9
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16/49
ANSI 829.2M-1982
AMERICAN NATIONAL STANDARD
INVERTED TOOTH (SILENT) CHAINS AND SPROCKETS
1.8
Chain Widths and Sprock et Face Profile for
3/16
in. Pitch Chain
Side Guide
[Note (2) l
Center Guide
GENERAL
NOTES:
(a)
Sprocket face widths are established:
W = 0.0315 n. (N-2) 0.020 n.
W =
0.8001 mrn (N-2 ) 0.51 rnrn
where
N = the total number of links wide
(b ) Face width tolerance is
?
0.003 in. k
0.08
mrn)
NOTES:
( 1 ) Grooving tool may be ei ther square
or
round end but groove must be full width down to
diameter G. For values of
G see
Tables
2.9-1
and 2.9-2.
(2)
M equals maximum overall width
of
chain.
FIG.
1.8
CHAIN WIDTH AND SPROCKET PROFILE
10
hQÆRN«• Q w w w . b z fxw . c o m Q M 9 N }
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AM E RI CAN NAT I ONAL S T ANDARD
INVERTED TOOTH (S ILENT) CHAINS ANDSPROCKETS
ANSI
B29.2M-1982
TABLE 1.8-1
CHAIN WIDTHS AND SPROCKET FACE DIMENSIONS NCHES
M
C ha i n M U . C F
W
N um beri t ch A Max. Min. H R k0.003
SC0305
SC0307
SC0309
SC031
l 2
SC031 32
0.1875
0.1875
0.1 875
0.1 875
Side guide
Side guide
Side guide
Side guide/
Side guide/
Side guide/
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
center guide
center guide
center guide
0.21 6 0.06
0.278 0.06
0.341 0.06
0.403 0.06
...
...
. . .
...
0.334
...
0.025
0.025
0.025
0.025
0.09
0.09
0.09
0.09
0.075
0.1 38
0.201
0.264
.050
0.09
0.327
.1 875 0.466.06
0.050
0.396 0.025
0.390
C03152
0.528 0.06
0.050
0.459 0.025
0.09
.1 875
0.521
0.584
0.646
0.709
0.771
0.834
0.896
0.959
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
SC031 7
SC03 19
SC0321
SC0323
SC0325
SC0327
SC0329
SC0331
0.1 875
0.1875
0.1 875
0.1 875
0.1 875
0.1 875
0.1 875
0.1 875
0.591 0.06
0.653 0.06
0.716 0.06
0.778.06
0.850 0.06
0.903.06
0.966.06
1.028.06
0.050
0.050
0.050
0.050
0.050
0.050
0.050
0.050
...
...
...
..
.
. . .
...
..
. . .
. . .
..
. . .
. . .
.
..
..
NOTES:
(1) M equals ma ximum ove ral l width of chain.
(2) Specify side guide or center guide type.
TABLE1.8-2
CHAIN WIDTHS AND SPROCKET FACE DIMENSIONS MILLIMETERS
M
C ha in M U . C F
W
N um beri tch 11
A
Max. Min. H R kO.08
~
2.3 1.91
2.3.5 1
2.3.1 1
2.3.71
SC0305
SC0307
SC0309
SC031 1
4.76
4.76
4.76
4.76
Side guide
Side guide
Side guide
Side guide/
Side guide/
Side guide/
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
Center guide
center guide
center guide
center guide
5.49
7.06
8.66
10.24
1.5
. . .
1.5
. . .
1.5 . . .
1.5 1.27
. . .
. . .
. . .
8.48
0.64
0.64
0.64
0.64
SC031 32
X 0 3 1
1.5 1.27
10.06
0.64
2.3 8.31
.76
11.84
2.3 9.91
.76
13.41
1.5.27
1 1.66 0.64
4.76
4.76
4.76
4.76
4.76
4.76
4.76
4.76
15.01
16.59
18.1 9
19.76
21.59
22.94
24.54
26.1 1
1.5 1.27
1.5.27
1.5.27
1.5 1.27
1.5.27
1.5.27
1.5.27
1.5 1.27
13.23
14.83
16.41
18.01
19.58
21.18
22.76
24.36
2.3 . . .
2.3 . . .
2.3 ...
2.3 ...
2.3
..
2.3
. . .
2.3
...
2.3
...
SC0317
SC0319
SC0321
SC0323
SC0325
SC0327
SC0329
SC0331
. . .
...
...
. . .
. . .
. ..
...
...
NOTES:
(1 ) M equals maximum overal l width
of
chain.
(2) Specify side guide or cen ter guide type.
11
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18/49
ANSI B29.2M-1982
AM E RI CAN NAT I ONAL S T ANDARD
INVERTE D TO OTH (S ILENT) C HAINS AND PROCKETS
2
SPROCKETS
2.1
Tooth
Form Dimensions for 3 / ~ n. Pitch
Chain and
Larger
‘ I
P = chain pitch
N
=
number of teeth
E =
diameter to center of topping curve
B
=
diameter to base of working face
E =
P cot
-
0.22)
80°
N
P
v
1.515213+
cot
--
1.1)2
180°
N
GENERAL NOTES:
a) Teeth may be either rounded topped)
or
square turned).
b) Shape of root line below working ace may vary with
type of cutter.
FIG. 2.1 SPROCKET
TOOTH
FORM
12
h Q Æ R N « • Q w w w . b z f x w . c o m Q M 9 N }
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19/49
AM ERICAN NATIO NAL STANDARD
INVERTED TOOTH (SILENT) CHAINS ANDSPROCKETS
ANSI
B29.2M-1982
2.2
Tooth Form Dimensions
for
3/16 in. Pitch Chain
( 3 5 0
3600
N
I
- 70°
-
60°
)
N
0.1 23P
t f
‘
P
=
chain pitch
I
o.io7
N
=
number of teeth
FIG.
2.2
SPROCKET TOOTH FORM
360°
N
3 5 0
N
0.1 23P
0.597P
P
=
chain pitch
N
=
number of teeth
T a n g e n t point
P
0.16P
radius
rnax.
FIG.
2.2
SPROCKET TOOTH FORM
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20/49
ANSI B29.2M-1982
AMERICAN NATIONAL STANDARD
INVERTED TOOTH SILENT) CHAINS ANDSPROCKETS
2.3 Diameters
and
Measuring Dimensions
for
3/8 in.
Pitch Chain
and Larger
P =
PD =
OD
=
Dp =
N =
E =
OPD
=
G =
chain pitch
pitch diameter
outside diameter
gage pin diameter
number of teeth
diameter to center
of
topping curve
over pin diameter
maximum guide groove
diameter
r=4
F1.G. 2.3
SPROCKET DIAMETERS
P
P D =
80
sin
D p = 0.625P
OPD (even no. of teeth) = PD
-
0.125P csc 30
( )t 0.625P
OPD (odd no. of eeth) = cos PD 0.125P csc
3
( 'Fo)] t
.625P
OD (rounded teeth) = P (cot t .08
OD (square teeth)
=
2 4 X 2
+
L 2 2 X L
COS
a
where
X = Y COS a - 4 ( 0 . 1 5 P ) 2
(Y
sin
Y
=
P
0.500
-
0.375 sec
a)
cot a
+
0.1
1P
L
=
Y t E / 2 (see Fig. 2.1 for E )
= 30 36O /N
G (max.) = P cot
1 .16)
(
Y o
14
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21/49
AMERICAN NATIONAL STANDARD
INVERTED TOOTH SILENT) CHAINS ANDSPROCKETS
2.4
Diameters and Measuring Dimensions for 3/~6 n. Pitch Chain
P =
PD =
OD =
Dp =
N =
E =
OPD =
G =
FIG. 2.4
SPROCKET DIAMETERS
D p =
0.667P
OPD (even no. of teeth) = PD - 0.160P csc( 5
-
'$)+ 0.667P
OPD (odd no. of teeth) =
cos
PD 0.160P csc (35O
-F
0.667P
N
OD (nominal rounded
teeth)
= P
(cot
-
0.032)
A N S I B29.2M-1982
chain pitch
pitch diameter
outside diameter
gage pin diameter
number
of
teeth
diameter to center
of topping curve
over pin diameter
maximum guide groove
diameter
1 5
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22/49
A N S I B29.2M-1982
A M E R I C A N N A T I O N A L S T A N D A R D
I N V E R T E D T O O T H ( S I L E N T ) C H A I N S A N D PROCKETS
2.5
Tolerances
for
Diameters, Over Pin Dimensions, and Eccentricity
for 3/8
in. Pitch
Chain
and Larger
TABLE 2.5-1
OVER PIN DIAMETER TOLERANCES NCHES
N um ber of Teeth
Pi tch up t o
15 16-24 25-35
0.375
0.005
0.500
0.005
0.625
0.006
0.750
0.006
1 ooo
0.007
1.250
0.008
1s o 0
0.008
2.000
0.01 0
0.005
0.006
0.006
0.007
0.008
0.009
0.01 0
0.01 2
0.005
0.006
0.007
0.008
0.009
0.01
0
0.0 1 1
0.01 4
36-48
0.006
0.007
0.008
0.009
0.01
0
0.01 1
0.01 3
0.01 6
49-63
0.006
0.007
0.009
0.01
0
0.01 1
0.01
3
0.01 4
0.01 8
64-80
0.007
0.008
0.01
0
0.01 1
0.01 2
0.01 4
0.01 6
0.020
81 99
0.007
0.008
0.01
0
0.01 1
0.01 3
0.01 5
0.01 7
0.022
100-1
20
0.007
0.009
0.01
0
0.01 2
0.01
4
0.0
1 7
0.01 9
0.024
121-143
0.008
0.009
0.01
1
0.01 3
0.01
5
0.01
8
0.020
0.026
144
Up
0.008
0.01
0
0.01 2
0.01 4
0.01 6
0.01 9
0.022
0.028
TABLE 2.5-2
OVER PIN DIAMETER TOLERANCES -MILLIMETERS
N um ber of Teeth
Pi tch UP to 156-24 25-35 36-489-634-801 -99 100-12021-143 144 Up
9.52
0.1 3 0.1 3 0.13
0.1
5 0.15 0.1 8
0.1
8 0.1 8
0.20 0.20
12.70
0.1 3
0.1 5 0.1 5
0.1 8 0.1 8 0.20
0.20 0.23 0.23 0.25
15.88
0.1 5
0.1 5 0.1 8 0.20 0.23
0.25
0.25 0.25 0.28 0.30
19.05
0.1 5
0.1 8
0.20
0.23 0.25
0.28
0.28 0.30 0.33 0.36
25.40
0.1 8
0.20 0.23 0.25
0.28 0.30
0.33 0.36 0.38 0.40
31.75 0.20 0.23 0.25
0.28 0.33 0.36
0.38 0.43 0.46 0.48
38.10
0.20
0.25 0.28
0.33
0.36 0.40
0.43
0.48 0.5
1
0.56
50.80
0.25
0.30 0.36
0.40 0.46 0.5 1
0.56 0.61 0.66 0.71
GEN ERA L NOTES (Tables
2.5-1
and
2.5-2):
(a) Tolerance for outs ide diameters of sprockets wi th square top teeth = plus
0.000;
minus
0.050
X pitch, in.
(b) Tolerance for outs ide diametersof sprockets w i th rounded top teeth s the same as over pin diameter tolerance.
(c) Tolerance fo r guide groove diameter
G
= plus
0.000;
minus
0.030
in.
(0.76
mm).
(d) Tolerance or maximum eccentr ic i ty ( total ndicator reading) pi tch diameter wi th respect to bore
=
0.001 X PD, n., bu t no t
less
( e )
Al l tolerances are negative. Tolerance
= (0.004 +
0.001
P f i
in.; where P
=
chain pi tch, N
=
number of teeth.
than 0.006 nor more than
0.032.
16
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23/49
AMERICAN NATIO NAL STANDARD
INVERTED TOOTH (SILENT) CHAINS AND SPROCKETS
ANSI B29.2M-1982
2.6 Tolerances for Diameters, Over Pin Dimensions, and Eccentricity for 3 / 1 ~ in. P itch Chain
TABL E 2.6-1
OVER PIN DIAMETER TOLERANCES
INCHES
Number of Teeth
Pitch Up to 15 16-24 25-35 36-489-63 64-80 81-99 100-1 20 121-143 144 Up
~
0.1 875
0.004
0.004.004 0.004 0.004 0.005 0.005 0.005 0.005 0.005
TABLE 2.6-2
OVER PIN DIAMETER TOLERANCES MILLIM ETER S
Number of Teeth
Pitch Up to 15 16-24 25-35 36-48 49-63 64-80 81-99 100-120 121-143 144 Up
4.76
0.1
0 0.1 0 0.1 0 0.1 0
0.1
0 0.1 3
0.1
3 0.1 3 0.1 3 0.1 3
GENERAL NOTES (Tables 2.6-1 and 2.6-2):
(a) Tolerance for guide groove diameter G = plus 0.000 n.; minus 0.015 in. 0.38 mm).
(b) Tolerance for maximum eccentricity (total indicator reading) pitch diameter with respect to bore
is
0.004 in. up to and including
(c)
Al l
tolerances are negative.
4
in. diameter; and 0.008 in., over
4
in. diameter.
1 7
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24/49
ANSI
B29.2M-1982
AMERICAN NATIONAL STANDARD
INVERTE D TOOTH SILENT ) CHAINS AND PROCKETS
2.7 Hub Diameters for
j ~
n. Pitch C hain and Larger
TABLE 2.7
MAXIMUM HUB DIAMETER
FOR
CHAIN
O F
UNITY PITCH
For other pitches
(j/8 in.
pitch and larger), multiply these values
by pitch.
Number o f Teethobuttraddleut
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
4.01 9
4.341
4.662
4.983
5.304
5.626
5.946
6.265
6.586
6.905
7.226
7.546
7.865
8.1 85
8.503
4.099
4.421
4.742
5.063
5.384
5.706
6.026
6.345
6.666
6.985
7.306
7.626
7.945
8.265
8.583
G E N E R A L NOTES:
a) Formulas for calcu lating maximum hub diameters MHD) :
MHD hobbed eeth)
=
P cot--
1.33
7
)
MHD straddle cut teeth)
=
P cot--
1.25)
(
MHD for other methodsof cut ting eeth may differ from the above.
teeth should have a Rockwell hardness o f C50 min.
(b ) Goodpractice ndicates hat eeth o f sprockets up o and including
31
18
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A M E R I C A N N A T I O N A L S T A N D A R D
I N V E R T E D T O O T H ( S I L E N T ) C H A I N S A N D PR O CK E TS
ANSI B29.2M-1982
2.8 Tabulation of Pitch Diameter, Outside Diam eter, Over Pin Dimensions, and Guide Groove Diam eter
for
Chain
of
Unity Pitch (Applicable to
3/8
in. Pitch Chain and Larger)
TABLE 2.8
TABULATION
For other pitches (3/8 in. pitch and larger), multiply these values
by
pitch.
Outside Diameter
Square G Max. Guide
Pitch Rounded Teeth Over Pin Dia. Groove Dia. Gagein
Number of Teeth Diameter TeethNote 1
11
[Note
(111
[Note
(111
Dia.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
5.442
5.759
6.076
6.393
6.710
7.027
7.344
7.661
7.979
8.296
8.61 4
8.932
9.249
9.567
9.885
10.202
10.520
10.838
11.156
1 1.474
11.792
12.110
12.428
12.746
13.064
13.382
13.700
14.018
14.336
14.654
14.972
15.290
15.608
15.926
16.244
16.562
16.880
17.1 98
17.51 7
17.835
18.1 53
18.471
18.789
5.429
5.75
6.072
6.393
6.714
7.036
7.356
7.675
7.996
8.31 5
8.636
8.956
9.275
9.595
9.91 3
10.233
10.553
10.872
11.191
11.510
1 1
229
12.1 49
12.468
12.787
13.106
13.425
13.743
14.062
14.381
14.700
15.01 8
15.337
15.656
15.975
16.293
16.612
16.930
17.249
17.568
17.887
18.205
18.524
18.842
5.298
5.623
5.947
6.271
6.595
6.91 9
7.243
7.568
7.890
8.21 3
8.536
8.859
9.1 81
9.504
9.828
10.1
50
10.471
10.793
11.115
11.437
11.757
12.077
12.397
12.71 7
13.037
13.357
13.677
13.997
14.31 7
14.637
14.957
15.277
15.597
15.91 7
16.236
16.556
16.876
17.1 96
17.515
17.834
18.1 54
18.473
18.793
19
5.669
6.01 8
6.324
6.669
6.974
7.31 5
7.621
7.960
8.266
8.602
8.909
9.244
9.551
9.884
10.192
10.524
10.833
11.164
11.472
1 1 A03
12.112
12.442
12.751
13.080
13.390
13.71 8
14.028
14.356
14.667
14.994
15.305
15.632
15.943
16.270
16.581
16.907
17.21 8
17.544
17.857
18.1 83
18.494
18.820
19.131
4.1
89
4.5 1
4.832
5.153
5.474
5.796
6.1 16
6.435
6.756
7.075
7.396
7.716
8.035
8.355
8.673
8.993
9.31 3
9.632
9.951
10.270
10.589
10.909
11.228
11.547
11.866
12.1 85
12.503
12.822
13.141
13.460
13.778
14.097
14.41 6
14.735
15.053
15.372
15.690
16.009
16.328
16.647
16.965
17.284
17.602
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
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ANSI B29.2M-1982
A M E R I C A N N A T I O N A L S T A N D A R D
I N V E R TE D TOOTH (S I LE N T) C H A I N S A N D P R OC K ETS
TABLE 2.8 (CONT’D)
Outside Diameter
Square
G
Max. Guide
Pitch Rounded Teeth Over Pin Dia. Groove Dia. Gage Pin
Number
of
Teeth Diameter TeethNote
(1
[Note
(111
[Note
(111
Dia.
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
19.1 07
19.426
19.744
20.062
20.380
20.698
21.016
21.335
21.653
21.971
22.289
22.607
22.926
23.244
23.562
23.880
24.1 98
24.51 7
24.835
25.1 53
25.471
25.790
26.1 08
26.426
26.744
27.063
27.381
27.699
28.01 7
28.335
28.654
28.972
29.290
29.608
29.926
30.245
30.563
30.881
31.199
31.518
3 1.836
32.1 54
32.473
32.791
33.1 09
33.427
33.746
34.064
34.382
34.701
19.161
19.480
19.799
20.1 17
20.435
20.754
21.072
21.391
21.71
0
22.028
22.347
22.665
22.984
23.302
23.621
23.939
24.257
24.577
24.895
25.213
25.531
25.851
26.169
26.487
26.805
27.1 25
27.443
27.761
28.079
28.397
28.716
29.035
29.353
29.671
29.989
30.308
30.627
30.945
31.263
31.582
31.900
32.218
32.537
32.856
33.1 74
33.492
33.81 1
34.1 29
34.447
34.767
19.112
19.431
19.750
20.070
20.388
20.708
21.027
21.346
21.665
21.984
22.303
22.622
22.941
23.259
23.578
23.897
24.216
24.535
24.853
25.1 72
25.491
25.809
26.1 28
26.447
26.766
27.084
27.403
27.722
28.040
28.359
28.6 78
28.997
29.31
5
29.634
29.953
30.271
30.590
30.909
31.228
31 S4 6
31.865
32.183
32.502
32.820
33.1 39
33.457
33.776
34.094
34.41 3
34.731
20
19.457
19.769
20.095
20.407
20.731
21.044
2 1.368
21.682
22.006
22.31 9
22.643
22.955
23.280
23.593
23.91 7
24.230
24.553
24.868
25.191
25.504
25.828
26.141
26.465
26.778
27.101
27.41 5
27.139
28.052
28.375
28.689
29.01 3
29.327
29.649
29.963
30.285
30.601
30.923
31.237
31.559
31.874
32.196
32.51 1
32.834
33.148
33.470
33.784
34.1 07
34.422
34.744
35.059
17.921
18.240
18.559
18.877
19.195
19.514
19.832
20.151
20.470
20.788
21.1 07
21.425
21.744
22.062
22.381
22.699
23.01
7
23.337
23.655
23.973
24.291
24.61
1
24.929
25.247
25.565
25.885
26.203
26.521
26.839
27.157
27.476
27.795
28.1 13
28.43
1
28.749
29.068
29.387
29.705
30.023
30.342
30.660
30.978
31.297
31.616
31.934
32.252
32.571
32.889
33.207
33.527
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
h Q Æ R N « • Q w w w . b z f x w . c o m QM 9N }
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27/49
A M E R I C A N N A T I O N A L S T A N D A R D
I N V E R T E D T O O T H ( S I L E N T ) C H A I N S A N DPROCKETS
A N SI
B29.2M-1982
TABLE 2.8 (CONT’D)
~ ~~ ~~ ~ ~~
Outside D iameter
Square
G
Max.uide
Pitch Rounded Teet h Over Pin Dia. Groove Dia. Gage Pin
Number of TeethiametereethNote (111 [Note
(111
[Note (111 Dia.
110
1 1 1
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
1 46
147
148
149
150
35.019
35.337
35.655
35.974
36.292
36.610
36.929
37.247
37.565
37.883
38.201
38.5 19
38.837
39.1 56
39.475
39.794
40.1 12
40.430
40.748
41.066
41.384
41.702
42.020
42.338
42.656
42.975
43.293
43.61
1
43.930
44.249
44.567
44.885
45.203
45.521
45.840
46.1 58
46.477
46.796
47.1 14
47.432
47.750
35.084
35.403
35.721
36.040
36.358
36.676
36.995
37.313
37.632
37.950
38.268
38.586
38.904
39.223
39.542
39.861
40.1 80
40.497
40.81 6
41.1 34
41.452
41.770
42.088
42.406
42.724
43.043
43.362
43.679
43.998
44.31 7
44.636
44.954
45.271
45.590
45.909
46.227
46.546
46.865
47.1 83
47.501
47.81 9
35.050
35.368
35.687
36.005
36.324
36.642
36.961
37.279
31.598
37.916
38.235
38.553
38.872
39.1 90
39.508
39.827
40.1 45
40.464
40.782
41.1
00
41.41 9
41 .738
42.056
42.374
42.693
43.01
43.329
43.647
43.966
44.284
44.603
44.922
45.240
45.558
45.877
46.195
46.514
46.832
47.1 51
47.469
47.787
--
35.381
35.695
36.01 7
36.333
36.654
36.969
37.292
37.606
37.928
38.243
38.564
38.879
39.200
39.516
39.839
40.1 54
40.476
40.790
41.112
41.427
41.748
42.063
42.384
42.699
43.020
43.336
43.657
43.972
44.295
44.61 1
44.932
45.247
45.568
45.883
46.205
46.520
46.842
47.1 59
47.479
47.795
48.1 16
33.844
34.163
34.481
34.800
35.1 18
35.436
35.755
36.073
36.392
36.71
0
37.028
37.346
37.664
37.983
38.302
38.621
38.940
39.257
39.576
39.894
40.21 2
40.530
40.848
41.166
41.484
41.803
42.1 22
42.439
42.758
43.077
43.396
43.714
44.031
44.350
44.669
44.987
45.306
45.625
45.943
46.261
46.579
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
0.6250
G E N E R A L N O T E :
(a) For tolerances , see Tables 2.5-1 nd 2.5-2.
N O T E:
1 ) Diameters given are ma ximu m; all tolerances must
be
negative.
21
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28/49
ANSI B29.2M-1982
AMERICAN NATIONAL STANDARD
INVERTED TOOTH SILENT ) CHAINS AND PROCKETS
2.9
Tabulation of Pitch D iameter, Outside Diameter, Over Pin Dimensions, and Guide Groove Diameter
for 3/16 in. Pitch Chain
TABLE 2.9-1
TABULATION NCHES
Number Groove
of Pitch Outside Dia. Over Pin Dia. Dia.
Teeth Dia. [Notes
(1),(2)]
[Notes
(1),(3)]
[Note
( I ) ]
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
0.665
0.724
0.783
0.843
0.902
0.961
1.020
1.080
1.139
1.1 99
1.258
1.31 8
1.377
1.436
1.496
1.556
1.61 5
1.675
1.734
1.794
1.853
1.913
1.973
2.032
2.092
2.1 51
2.21 1
2.271
2.330
2.390
2.449
2.509
2.569
2.628
2.688
2.748
2.807
2.867
2.926
2.986
3.046
3.1 05
3.165
3.225
3.284
0.632
0.694
0.755
0.81 5
0.876
0.937
0.996
1.05 7
1.116
1.1 77
1.237
1.298
1.357
1.41 7
1.477
1.538
1.597
1.657
1.717
1.777
1.836
13 9 7
1.957
2.01 6
2.077
2.136
2.1 96
2.256
2.31 5
2.376
2.435
2.495
2.555
2.614
2.674
2.735
2.794
2.854
2.91 3
2.973
3.033
3.092
3.152
3.21 3
3.272
0.691
0.761
0.821
0.888
0.946
1.01
2
1.069
1.1 34
1.191
1.256
1.312
1.377
1.433
1.497
1.554
1.617
1.674
1.737
1.795
1.857
1.914
1.977
2.035
2.096
2.1 55
2.216
2.274
2.336
2.394
2.456
2.51 3
2.575
2.633
2.695
2.753
2.81
5
2.872
2.934
2.992
3.053
3.1 11
3.1 73
3.231
3.293
3.351
0.41 3
0.429
0.536
0.596
0.657
0.71 8
0.778
0.838
0.899
0.959
1.01 9
1.079
1.139
1.1 99
1.259
1.319
1.379
1.439
1.499
1.559
1.619
1.679
1.739
1.799
1 .a58
1.91 8
1.978
2.038
2.098
2.158
2.21 7
2.277
2.337
2.397
2.456
2.516
2.576
2.636
2.696
2.755
2.815
2.875
2.934
2.993
3.054
Vumber Max. Groove
o f
Pitch Outside Dia. Over Pin Dia. Dia.
Teeth Dia. [Notes
(1),(2)]
[Notes
(1),(3)]
[Note
( I ) ]
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
3.344
3.404
3.463
3.523
3.583
3.642
3.702
3.762
3.821
3.881
3.941
4.000
4.060
4.1 20
4.1 79
4.239
4.299
4.358
4.41 8
4.478
4.537
4.597
4.657
4.71 6
4.776
4.836
4.895
4.955
5.015
5.074
5.1 34
5.1 94
5.253
5.31 3
5.373
5.432
5.492
5.552
5.61
1
5.671
5.131
5.790
5.850
5.910
5.969
3.332
3.392
3.45 1
3.51 1
3.571
3.630
3.690
3.750
3.809
3.869
3.930
3.989
4.049
4.1 09
4.1 68
4.228
4.288
4.347
4.407
4.467
4.526
4.586
4.646
4.705
4.765
4.825
4.884
4.944
5.004
5.063
5.1 24
5.1 84
5.243
5.303
5.363
5.422
5.482
5.542
5.601
5.661
5.721
5.780
5.840
5.900
5.959
3.412
3.471
3.531
3.590
3.651
3.709
3.771
3.830
3.890
3.949
4.01
0
4.068
4.1 29
4.1 88
4.248
4.307
4.368
4.426
4.487
4.546
4.606
4.665
4.726
4.785
4.846
4.905
4.965
5.024
5.085
5.1 43
5.204
5.263
5.323
5.382
5.443
5.501
5.5 62
5.621
5.681
5.740
5.801
5.859
5.920
5.979
6.039
3.1 14
3.1 73
3.233
3.293
3.353
3.41 3
3.472
3.532
3.592
3.651
3.71 1
3.771
3.831
3.890
3.950
4.01
0
4.070
4.1 29
4.1 89
4.249
4.308
4.368
4.428
4.487
4.547
4.607
4.667
4.726
4.786
4.846
4.906
4.965
5.045
5.084
5.1 44
5.204
5.264
5.323
5.383
5.443
5.503
5.562
5.622
5.682
5.741
22
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8/9/2019 ASME B29.2M-1982(R1999)
29/49
AMERICAN NATIONAL STANDARD
INVERTE D TOOTH SILENT) CHA INS AND PROCKETS
ANSI B29.2M-1982
TABLE
2.9-1
(CONT’D)
Number
of
Teeth
101
102
103
104
105
Pitch
Dia.
6.029
6.089
6.1 48
6.207
6.268
Outside Dia.
[Notes l)X2)1
6.019
6.079
6.1 38
6.1 97
6.258
Over Pin Dia.
[ ~ o t e s~ ~ 3 1 1
6.098
6.1 59
6.21 7
6.277
6.337
M a x . Groove
Dia.
[Note 111
5.801
5.861
5.921
5.980
6.040
106 6.328 6.318 6.398
6.1
00
107 6.388
6.378 6.457
6.159
108.441
6.437 6.5 18
6.21 9
109 6.508 6.498 6.576
6.279
110 6.566 6.556
6.637
6.338
Number
of
Teeth
111
112
113
114
115
Pitch Outside Dia. Over Pin Dia.
Dia. [Notes 1), 2)] [Notes 1), 3)]
6.625 6.6 15 6.695
6.685
6.675
6.755
6.745 6.735 6.81 5
6.805 6.795
6.876
6.866 6.856 6.935
M a x . Groove
Dia.
[Note
111
6.398
6.458
6.51 8
6.577
6.637
116 6.924 6.914 6.995 6.697
117 6.984 6.974 7.054 6.756
118 7.044 7.034 7.1 14 6.816
119 7.103 7.094
7.1 74
6.876
120 7.162 7.1 53 7.233 6.935
NOTES:
(1) Diameters given are maximum; all tolerances must be negative.
( 2 ) For rounded teeth.
(3)
Gage pin diameter =
0.1250
in.
TABLE 2.9-2
TABULATION MILLIMETERS
Number Max. Groove
of Pitch Outside Dia. Over Pin Dia. Dia.
Teeth Dia. [Notes 1), 2)] [Notes 1), 3)] [Note
( l ) ]
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
16.89
18.39
19.89
21.41
22.91
24.41
25.91
27.43
28.93
30.45
31.95
33.48
34.98
36.47
38.00
39.52
41.02
42.54
44.04
45.57
47.07
48.59
50.1 1
51.61
53.1 4
16.05 17.55
17.63 19.33
19.1 8 20.85
20.702.56
22.25 24.03
23.80 25.70
25.30 27.15
26.85 28.80
28.35 30.25
29.90 31.90
3 1.42 33.32
32.97 34.98
34.476.40
35.998.02
37.52 39.47
39.07 41.07
40.56 42.52
42.09 44.1 2
43.61 45.59
45.14 47.1 7
46.63 48.62
48.1 8 50.22
49.11 51.69
51.21 53.24
52.76 54.74