American Standard (Ansi) Roller Chain Size Chart
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1
2American Standard (ANSI) Roller Chain
(All dimensions in inches)
Connector links are wider than chain sections. Overall
Single Roller Chain
dimensions may vary depending on manufacturer.
Between
C.L.
Average
ANSI
Ametric®
Inner
Roller
Chain
Width
Strength(lbs)
Chain
Chain
ISO
Pitch
Plates
Diameter
Width
Extension
Weight
ANSI Stan-
No.
No.
No.
p
b1
d1
l
k
lbs/ft
dard
15
15-1
03 C-1
3/16
0.094
0.098
0.240
0.031
0.054
455
25
25-1
04 C-1
1/4
0.125
0.130
0.311
0.020
0.101
1,045
35
35-1
06 C-1
3/8
0.188
0.200
0.488
0.030
0.221
2,455
41
41-1
085-1
1/2
0.246
0.306
0.541
0.049
0.275
2,864
40
40-1
08 A-1
1/2
0.309
0.313
0.654
0.047
0.416
3,977
50
50-1
10 A-1
5/8
0.370
0.400
0.815
0.059
0.684
545
60
60-1
12 A-1
3/4
0.495
0.469
1.020
0.071
1.006
9,432
80
80-1
16 A-1
1
0.620
0.625
1.287
0.091
1.743
15,773
100
100-1
20 A-1
1 1/4
0.744
0.750
1.591
0.169
2.622
24,818
120
120-1
24 A-1
1 1/2
0.993
0.875
1.980
0.157
3.769
35,522
140
140-1
28 A-1
1 3/4
0.993
1.000
2.142
0.181
5.029
48,181
160
160-1
32 A-1
2
1.242
1.124
2.551
0.489
6.773
63,386
180
180-1
36 A-1
2 1/4
1.397
1.406
2.866
0.228
9.019
77,681
200
200-1
40 A-1
2 1/2
1.490
1.562
3.157
0.276
10.830
98,090
240
240-1
48 A-1
3
1.864
1.875
3.760
0.295
15.557
141,476
Double Roller Chain
25-2
04 C-2
1/4
0.125
0.130
0.517
0.020
0.188
1,909
25-2
35-2
06 C-2
3/8
0.188
0.200
0.886
0.031
0.422
4,477
35-2
41-2
085-2
1/2
0.246
0.306
1.012
0.130
0.543
3,841
41-2
40-2
08 A-2
1/2
0.309
0.313
1.220
0.047
0.751
7,954
40-2
50-2
10 A-2
5/8
0.370
0.400
1.496
.0.094
1.341
13,204
50-2
60-2
12 A-2
3/4
0.495
0.469
1.921
0.067
1.958
18,659
60-2
80-2
16 A-2
1
0.620
0.625
2.469
0.063
3.453
32,227
80-2
100-2
20 A-2
1 1/4
0.744
0.750
3.008
0.161
5.230
49,863
100-2
120-2
24 A-2
1 1/2
0.993
0.875
3.772
0.154
7.846
71,567
120-2
140-2
28 A-2
1 3/4
0.993
1.000
4.067
0.181
10.152
97,158
140-2
160-2
32 A-2
2
1.242
1.124
4.854
0.189
13.505
127,817
160-2
180-2
36 A-2
2 1/4
1.397
1.406
5.457
0.228
19.594
157,953
180-2
200-2
40 A-3
2 1/2
1.490
1.562
5.980
0.272
21.619
199,407
200-2
240-2
48 A-2
3
1.864
1.875
7.220
0.291
30.330
285,292
240-2
Roller Link or Inner Link - Used for replacement of dam-
aged rollers.
Offset Link - Used to assemble chain strands when an
odd number of pitches is desired.
Inner Link
Outer Link
Conn. Link with
Conn. Link with
Half Link with
Offset Link
Connector Link - Used to asemble chain strands when an
(Riveted Conn. Link)
Spring Clip
Cotter Pins
Cotter Pin
even number of pitches is desired.
®
American Metric
Corporation
Ametric
Group: 105
®
1-105-060213
59
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