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British Standard Roller Chains : Duplex
BS 228 / DIN 8187 / ISO 606
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
Traverse
Pitch
Ultimate
Tensile
Strength
Average
weight
Spring clip
Cotter
P
mm
W
(min.)
mm
d1
(max.)
mm
d2
(max.)
mm
b1
(max.)
mm
b2
(max.)
mm
b3
(max.)
mm
b4
(max.)
mm
h
(max.)
mm
e
mm
(min.)
kgf
kg/m
DR 830
05B-2
8.00
3.10
5.00
2.31
13.80
14.30
-
-
7.06
5.64
800
0.33
# DR 957
06B-2
9.525
5.90
6.35
3.28
23.50
24.50
24.80
25.79
8.16
10.24
1730
0.77
DR 1278
08B-2
12.70
7.85
8.51
4.45
30.70
32.10
-
34.90
11.71
13.92
3270
1.37
DR 1595
10B-2
15.875
9.85
10.16
5.08
35.60
37.30
-
39.40
14.66
16.59
4540
1.89
DR 1911
12B-2
19.05
11.70
12.07
5.72
41.85
43.10
-
45.50
16.10
19.46
5900
2.36
DR 2517
16B-2
25.40
17.50
15.88
8.27
66.90
68.60
70.90
72.90
20.70
31.88
10806
5.38
DR 3119
20B-2
31.75
19.58
19.05
10.17
78.30
80.00
81.60
83.20
25.90
36.45
17330
7.38
DR 3825
24B-2
38.10
25.40
25.40
14.63
101.30
-
107.60
107.75
33.30
48.36
28550
13.93
DR 4431
28B-2
44.45
30.99
27.94
15.90
124.50
-
130.60
131.40
37.20
59.56
36700
18.52
DR 5031
32B-2
50.80
30.99
29.21
17.81
123.70
-
131.40
131.55
41.50
58.55
45880
19.91
DR 6338
40B-2
63.50
38.20
39.37
22.89
154.30
-
163.00
164.00
52.10
72.29
64240
32.00
DR 7645
4BB-2
76.20
45.80
48.26
29.24
190.30
-
199.40
200.30
63.80
91.21
114170
50.27
#
Straight side plate Chain
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