Roller Chains
Simplex BS 228 / DIN 8187 / ISO 606

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ROLON
CHAIN NO.
BS
ISO/DIN NO.
Pitch

Width 
between
Inner plates
Roller
Diameter
Pin
Diameter
Pin 
Width
Conneting Pin 
Width
Overall
Width
Inner
Plate
Height
Ultimate
Tensile
Strength
Average
weight
Spring clip Cotter
P

mm
W
(in.)
mm 
d1
(max.)
mm
d2
(max.)
mm
b1
(max.)
mm
b2
(max.)
mm
b3
(max.)
mm
b4
(max.)
mm
h
(max.)
mm
(min.)
kgf
kg/m
R 628
04
6.00
2.80
4.00
1.85
7.10
7.70
-
-
5.00
300
0.12
R 830
05B-1
8.00
3.10
5.00
2.31
8.20
8.70
-
-
7.06
510
0.16
# R 957
06B-1
9.525
5.90
6.35
3.28
13.30
14.30
14.50
15.96
8.16
920
0.42
R 1230
081
12.70
3.60
7.75
3.66
9.90
10.90
11.40
12.40
9.90
840
0.30
R 1224
082
12.70
2.40
7.75
3.66
8.20
-
-
-
9.90
840
0.27
R 1249
083
12.70
4.90
7.75
4.09
13.10
14.00
-
15.65
10.36
1350
0.48
R 1248H
084
12.70
4.90
7.75
4.09
14.80
15.60
-
16.30
11.10
1630
0.58
R 41
085
12.70
6.40
7.77
3.58
14.00
14.98
-
16.00
9.90
1030
0.42
R 1278
08B-1
12.70
7.85
8.51
4.45
16.80
18.10
-
21.20
11.71
1840
0.71
R 1595
10B-1
15.875
9.85
10.16
5.08
19.50
20.60
-
22.50
14.66
2290
0.96
R 1911
12B-1
19.05
11.70
12.07
5.72
22.40
23.70
-
25.95
16.10
2970
1.20
R 2517
16B-1
25.40
17.50
15.88
8.27
35.70
36.60
38.90
41.00
20.70
6120
2.75
R 3119
20B-1
31.75
19.58
19.05
10.17
41.85
43.60
45.10
46.80
25.90
9690
3.70
R 3825
24B-1
38.10
25.40
25.40
14.63
52.90
-
59.30
60.00
33.30
16310
7.22
R 4431
28B-1
44.45
30.99
27.94
15.90
64.90
-
71.00
71.80
37.20
20390
9.34
R 5031
32B-1
50.80
30.99
29.21
17.81
65.10
-
72.80
73.00
41.50
25500
10.05
R 6338
40B-1
63.50
38.20
39.37
22.89
82.00
-
90.70
92.60
52.10
36200
16.00
R 7645
48B-1
76.20
45.80
48.26
29.24
99.0
-
108.20
109.10
63.80
57100
25.40
# Straight side plate Chain