British Standard (BS) roller chains are widely used in various industries for transmitting power and conveying loads.
configurations
Simplex (single strand)
Duplex (double strand)
Triplex (triple strand)
TransDrive BS Standard Roller Chain Products
05B – 06B Standard Roller Chain
ISO Chain No.
ANSI Chain No.
Pitch
Roller Diameter max
Width Between Inner Plates min
Pin Diameter max
Plate Thickness max
Inner Plate Depth max
Outer Plate Depth max
P
Dr
W
D
T1
T2
H
h
05B
05B
8.0
5.0
3.0
2.31
0.80
0.80
7.11
7.11
06B
06B
9.525
6.35
5.72
3.28
1.30
1.30
8.26
8.26
05B – 06B General Dimensions (Unit) :mm
ISO Chain No.
Pin Length
Transverse Pitch
Average Tensile Strength
Tensile Strength min
Weight Per Meter
L max
Dc max
L1 max
L2 max
L3 max
C
kN
kN
kg/m
05B-1
8.60
9.10
4.30
4.80
9.90
5.64
5.75
4.40
0.19
05B-2
14.30
14.80
7.15
7.65
16.40
9.80
7.80
0.37
05B-3
19.90
20.40
9.95
10.45
22.00
13.60
11.10
0.49
06B-1
13.50
14.40
6.75
7.65
14.60
10.24
9.80
8.90
0.44
06B-2
23.80
24.47
11.90
12.57
24.70
18.00
16.90
0.85
06B-3
34.00
34.50
17.00
17.50
34.70
28.80
24.90
1.26
05B – 06B Load Ratings. 08B – 10B Standard Roller Chain
ISO Chain No.
ANSI Chain No.
Pitch
Roller Diameter max
Width Between Inner Plates min
Pin Diameter max
Plate Thickness max
Inner Plate Depth max
Outer Plate Depth max
P
Dr
W
D
T1
T2
H
h
08B
08B
12.70
8.51
7.75
4.45
1.6
1.6
11.81
10.92
10B
10B
15.875
10.16
9.65
5.08
1.7
1.7
14.73
13.72
08B – 10B General Dimensions (Unit) :mm
ISO Chain No.
Pin Length
Transverse Pitch
Average Tensile Strength
Tensile Strength min
Weight Per Metre
L max
Dc max
L1 max
L2 max
L3 max
C
kN
kN
kg/m
08B-1
17.00
18.50
8.50
10.00
18.80
13.92
18.60
17.80
0.75
08B-2
31.00
32.50
15.5
17.00
33.80
35.00
31.10
1.45
08B-3
44.90
46.40
22.45
23.95
47.80
48.80
44.50
2.15
10B-1
19.60
21.05
9.80
11.25
21.35
16.59
25.60
22.20
1.05
10B-2
36.20
37.65
18.10
19.55
39.65
50.20
44.50
2.05
10B-3
52.80
54.20
26.40
27.80
56.30
75.80
66.70
3.15
08B – 10B Load Ratings
12B – 16B Standard Roller Chain
ISO Chain No.
ANSI Chain No.
Pitch
Roller Diameter max
Width Between Inner Plates min
Pin Diameter max
Plate Thickness max
Inner Plate Depth max
Outer Plate Depth max
P
Dr
W
D
T1
T2
H
h
12B
12B
19.05
12.07
11.68
5.72
1.85
1.85
16.13
16.13
16B
168
25.40
15.88
17.02
8.28
3.10
4.15
21.08
21.08
12B – 16B General Dimensions (Unit) :mm
ISO Chain No.
Pin Length
Transverse Pitch
Average Tensile Strength
Tensile Strength min
Weight Per Metre
L max
Dc max
L1 max
L2 max
L3 max
C
kN
kN
kg/m
12B-1
22.70
24.35
11.35
13.0
25.05
19.46
30.30
28.90
1.28
12B-2
42.20
43.80
21.10
22.70
46.50
60.30
57.80
2.56
12B-3
61.70
63.30
30.85
32.45
66.20
91.00
86.70
3.89
16B-1
36.10
37.95
18.05
19.90
39.05
31.88
68.80
60.0
2.72
16B-2
68.00
69.90
34.00
35.90
73.90
136.00
106.0
5.45
16B-3
99.90
101.80
49.95
51.85
106.00
205.60
160.0
8.06
12B – 16B Load Ratings
20B – 24B Standard Roller Chain
ISO Chain No.
ANSI Chain No.
Pitch
Roller Diameter max
Width Between Inner Plates min
Pin Diameter max
Plate Thickness max
Inner Plate Depth max
Outer Plate Depth max
P
Dr
W
D
T1
T2
H
h
20B
20B
31.75
19.05
19.56
10.19
3.7
4.6
26.42
26.42
24B
24B
38.10
25.40
25.40
14.63
5.2
6.0
33.4
33.4
20B – 24B General Dimensions (Unit) :mm
ISO Chain No.
Pin Length
Transverse Pitch
Average Tensile Strength
Tensile Strength min
Weight Per Metre
L max
Dc max
L1 max
L2 max
L3 max
C
kN
kN
kg/m
20B-1
43.20
44.67
21.60
23.07
48.57
36.45
108.60
95.00
3.99
20B-2
79.70
81.07
39.85
41.22
86.57
208.40
170.00
7.93
20B-3
116.10
117.40
58.05
59.35
123.15
285.30
250.00
11.82
24B-1
53.4
58.20
26.70
31.5
62.30
48.36
176.80
160.00
7.55
24B-2
101.8
106.65
50.9
55.75
112.95
322.60
280.00
14.75
24B-3
150.2
155.2
75.1
80.1
161.50
489.50
425.00
21.90
20B – 24B Load Ratings
28B – 32B Standard Roller Chain
ISO Chain No.
ANSI Chain No.
Pitch
Roller Diameter max
Width Between Inner Plates min
Pin Diameter max
Plate Thickness max
Inner Plate Depth max
Outer Plate Depth max
P
Dr
W
D
T1
T2
H
h
28B
28B
44.45
27.94
30.99
15.90
6.3
7.5
37.08
37.08
32B
32B
50.8
29.21
30.99
17.81
6.3
7.0
42.29
42.29
28B – 32B General Dimensions (Unit) :mm
ISO Chain No.
Pin Length
Transverse Pitch
Average Tensile Strength
Tensile Strength min
Weight Per Metre
L max
Dc max
L1 max
L2 max
L3 max
C
kN
kN
kg/m
28B-1
65.10
70.00
32.55
37.45
74.60
59.56
223.60
200.00
9.60
28B-2
124.70
129.57
62.35
67.22
136.97
407.50
360.00
18.90
28B-3
184.3
189.17
92.15
97.02
196.57
610.00
530.00
28.36
32B-1
67.40
71.40
33.70
37.70
75.10
58.55
278.20
250.00
10.34
32B-2
126.00
129.97
63.00
66.97
136.87
510.30
450.00
20.28
32B-3
184.50
188.50
92.25
96.25
195.40
771.20
670.00
30.18
28B – 32B Load Ratings
40B – 48B Standard Roller Chain
ISO Chain No.
ANSI Chain No.
Pitch
Roller Diameter max
Width Between Inner Plates min
Pin Diameter max
Plate Thickness max
Inner Plate Depth max
Outer Plate Depth max
P
Dr
W
D
T1
T2
H
h
40B
40B
63.5
39.37
38.1
22.89
8.0
8.5
52.96
52.96
48B
48B
76.2
48.26
45.72
29.24
10.0
12.0
63.88
63.88
40B – 48B General Dimensions (Unit) :mm
ISO Chain No.
Pin Length
Transverse Pitch
Average Tensile Strength
Tensile Strength min
Weight Per Metre
L max
Dc max
L1 max
L2 max
L3 max
C
kN
kN
kg/m
40B-1
82.60
86.35
41.30
45.05
90.90
72.29
388.20
355.00
16.64
40B-2
154.90
158.67
77.45
81.22
165.57
718.60
630.00
32.54
40B-3
227.20
230.97
113.60
117.37
237.87
1100.00
950.00
48.68
48B-1
99.10
107.0
49.55
57.45
110.5
91.21
628.50
560.00
25.10
48B-2
190.40
198.2
95.20
103.00
201.9
1136.00
1000.00
50.20
48B-3
281.60
289.4
140.80
148.60
293.1
1716.00
1500.00
75.30
40B – 48B Load Ratings
