231 series

The 231 series is a heavy-duty version of self-aligning roller bearings that combines high load capacity and high speed. It adopts a double row spherical roller structure and optimizes the structure ratio of the raceway and rollers based on the 230 series. It has strong radial load capacity and is suitable for heavy-duty working conditions from medium low speed to medium high speed. It is the main supporting bearing for large equipment such as metallurgy, wind power, and heavy machinery, with a wider adaptability than the 230 series.

Model Basic Dimensions Basic rated dynamic load Weight Type
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
23128CAK/W33 140 225 68 725 945 10.5 231 series
23130CAK/W33 150 250 80 905 1180 15.8 231 series
23132CAK/W33 160 270 86 1070 1400 20.3 231 series
23134CAK/W33 170 280 88 1180 1570 21.8 231 series
23136CAK/W33 180 300 96 1320 1760 27.5 231 series
23138CAK/W33 190 320 104 1480 2020 34.5 231 series
23140CAK/W33 200 340 112 1700 2330 42.7 231 series
23144CAK/W33 220 370 120 1960 2710 53 231 series
23148CAK/W33 240 400 128 2230 3100 66.9 231 series
23152CAK/W33 260 440 144 2700 3750 88.2 231 series
23156CAK/W33 280 460 146 2790 4000 94.3 231 series
23160CAK/W33 300 500 160 3350 4800 125 231 series
23164CAK/W33 320 540 176 3850 5500 162 231 series
23168CAK/W33 340 580 190 4500 6600 206 231 series
23172CAK/W33 360 600 192 4800 7100 217 231 series
23176CAK/W33 380 620 194 4000 7600 229 231 series
23180CAK/W33 400 650 200 4150 7900 257 231 series
23184CAK/W33 420 700 224 5000 9400 341 231 series
23188CAK/W33 440 720 226 5300 10300 360 231 series
23192CAK/W33 460 760 240 5700 10900 423 231 series