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）
R144ZZ 3.175 6.35 2.38 283 95 0.27 British Standard
R2-5ZZ 3.175 7.938 2.779 560 179 0.72 British Standard
R2-6ZZ 3.175 9.525 2.779 640 225 1.13 British Standard
R2ZZ 3.175 9.525 3.967 630 218 1.39 British Standard
R2AZZ 3.175 12.7 4.366 640 225 3.23 British Standard
R155ZZ 3.967 7.938 2.779 360 149 0.56 British Standard
R156ZZ 4.762 7.938 2.779 360 149 0.42 British Standard
R166ZZ 4.762 9.525 3.175 710 270 0.85 British Standard
R3ZZ 4.762 12.7 3.967 1300 485 2.79 British Standard
R3AZZ 4.762 15.875 4.978 1480 621 5.08 British Standard
R168ZZ 6.35 9.525 3.175 420 204 0.62 British Standard
R188ZZ 6.35 12.7 3.175 1080 440 2.21 British Standard
R4ZZ 6.35 15.875 4.978 1610 660 4.43 British Standard
R4AZZ 6.35 19.05 5.558 2620 1060 9.17 British Standard
R1810ZZ 7.938 12.7 3.967 540 276 1.48 British Standard
ER1038ZZ 9.525 15.875 3.967 856 435 2.98 British Standard
R6ZZ 9.525 22.225 5.558 3350 1410 11 British Standard
ER1212ZZ 12.7 19.05 3.967 918 542 3.84 British Standard
R8ZZ 12.7 28.575 6.35 5210 2440 22.7 British Standard
ER1458ZZ 15.875 22.225 3.967 968 619 4.6 British Standard