British Standard

British standard bearings are bearings designed and produced according to the British size system, with key dimensions such as inner diameter, outer diameter, and width measured in inches, accurately adapting to the installation requirements of equipment designed in the British system.

Model Basic Dimensions Basic rated dynamic load Weight Type
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
R09 1.016 3.175 1.191 80 23 0.04 British Standard
R0 1.191 3.967 1.588 138 35 0.09 British Standard
R1 1.397 4.762 1.984 231 66 0.15 British Standard
R1-4 1.984 6.35 2.38 310 108 0.35 British Standard
R133 2.38 4.762 1.588 143 52 0.1 British Standard
R1-5 2.38 7.938 2.779 550 175 0.6 British Standard
R144 3.175 6.35 2.38 283 95 0.25 British Standard
R2-5 3.175 7.938 2.779 560 179 0.55 British Standard
R2-6 3.175 9.525 2.779 640 225 0.96 British Standard
R2 3.175 9.525 3.967 630 218 1.36 British Standard
R2A 3.175 12.7 4.366 640 225 3.3 British Standard
R155 3.967 7.938 2.779 360 149 0.51 British Standard
R156 4.762 7.938 2.779 360 149 0.39 British Standard
R166 4.762 9.525 3.175 710 270 0.81 British Standard
R3 4.762 12.7 3.967 1300 485 2.21 British Standard
R3A 4.762 15.875 4.978 1480 621 4.75 British Standard
R168 6.35 9.525 3.175 420 204 0.58 British Standard
R188 6.35 12.7 3.175 1080 440 1.53 British Standard
R4 6.35 15.875 4.978 1610 660 4.5 British Standard
R4A 6.35 19.05 5.558 2620 1060 7.48 British Standard