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British Standard

British Standard roller chains are made in accordance with the ISO 606 B, BS 228, and DIN 8187 European standards. These chains resemble standard ANSI roller chains, however they are dimensionally different and in general require British Standard sprockets.

British Standard roller chains are produced with solid bushings and rollers and incorporate many of the design advantages associated with our ANSI series roller chains.

Roller Chain Illustration Dimensions Size Measurements

Chain No. Pitch inch Inside Width
Min		 Roller diam
Max		 Plate Height
Max		 Inner Plate Thick
Max		 Outer Plate Thick
Max		 Pin
 Diam
Max		 Pin Length
Max		 Conn Link Ext
Max		 Transverse Pitch
Nom		 Tensile
Strength
Min		 Rated Working Load Mass
  A B C D E F G H1 J K Lbs Lbs Lbs/Ft
06B 0.375 0.225 0.250 0.325 0.051 0.041 0.129 0.493 0.051   2,001 395 0.26
06B-2 0.375 0.225 0.250 0.325 0.051 0.041 0.129 0.906 0.051 0.403 3,799 670 0.50
06B-3 0.375 0.225 0.250 0.325 0.051 0.041 0.129 1.312 0.051 0.403 5,598 1,000 0.74
08B 0.500 0.305 0.335 0.465 0.061 0.061 0.175 0.650 0.059   4,001 700 0.47
08B-2 0.500 0.305 0.335 0.465 0.061 0.061 0.175 1.198 0.059 0.548 6,991 1,185 0.92
08B-3 0.500 0.305 0.335 0.465 0.061 0.061 0.175 1.745 0.059 0.548 10,004 1,750 1.38
10B 0.625 0.380 0.400 0.580 0.061 0.061 0.200 0.741 0.051   4,991 1,100 0.62
10B-2 0.625 0.380 0.400 0.580 0.061 0.061 0.200 1.395 0.051 0.654 10,004 1,870 1.21
10B-3 0.625 0.380 0.400 0.580 0.061 0.061 0.200 2.049 0.051 0.654 14,994 2,750 1.70
12B 0.750 0.460 0.476 0.636 0.071 0.071 0.225 0.863 0.043   6,497 1,575 0.80
12B-2 0.750 0.460 0.476 0.636 0.071 0.071 0.225 1.631 0.043 0.767 12,993 2,680 1.61
12B-3 0.750 0.460 0.476 0.636 0.071 0.071 0.225 2.399 0.043 0.767 19,490 3,930 2.41
16B 1.000 0.671 0.626 0.831 0.162 0.122 0.326 1.375 0.087   13,488 2,810 1.88
16B-2 1.000 0.671 0.626 0.831 0.162 0.122 0.326 2.632 0.087 1.256 23,829 4,780 3.69
16B-3 1.000 0.671 0.626 0.831 0.162 0.122 0.326 3.885 0.087 1.256 35,968 7,025 5.46
20B 1.250 0.771 0.751 1.041 0.182 0.142 0.401 1.568 0.106   21,356 4,370 2.58
20B-2 1.250 0.771 0.751 1.041 0.182 0.142 0.401 3.022 0.106 1.436 38,216 7,430 5.23
20B-3 1.250 0.771 0.751 1.041 0.182 0.142 0.401 4.460 0.106 1.436 56,200 10,925 7.81
24B 1.500 1.001 1.001 1.316 0.240 0.200 0.576 2.072 0.268   35,968 6,130 4.99
24B-2 1.500 1.001 1.001 1.316 0.240 0.200 0.576 3.991 0.268 1.905 62,944 10,270 9.92
24B-3 1.500 1.001 1.001 1.316 0.240 0.200 0.576 5.898 0.268 1.905 95,540 15,100 14.91
28B 1.750 1.221 1.101 1.461 0.300 0.250 0.626 2.529 0.268   44,960 7,650 6.26
28B-2 1.750 1.221 1.101 1.461 0.300 0.250 0.626 4.874 0.268 2.347 80,928 13,488 12.46
28B-3 1.750 1.221 1.101 1.461 0.300 0.250 0.626 7.222 0.268 2.347 119,144 19,125 18.76
32B 2.000 1.221 1.151 1.666 0.280 0.250 0.702 2.498 0.315   56,200 9,367 6.77
32B-2 2.000 1.221 1.151 1.666 0.280 0.250 0.702 4.807 0.315 2.307 101,160 16,860 13.47
32B-3 2.000 1.221 1.151 1.666 0.280 0.250 0.702 7.112 0.315 2.307 150,616 21,850 20.10
40B 2.500 1.548 1.551 2.087 0.320 0.320 0.902 3.081 0.374   79,804 13,300 11.06
40B-2 2.500 1.548 1.551 2.087 0.320 0.320 0.902 5.930 0.374 2.848 141,624 26,000 21.98
40B-3 2.500 1.548 1.551 2.087 0.320 0.320 0.902 8.778 0.374 2.848 213,560 32,000 32.76