Self aligning ball Bearings

Self-aligning ball bearing has a spherical raceway in the outer ring and a double-raceway in the inner ring. This feature gives the bearings the self-aligning property, which can keep the machine operating well even when angular misalignment of the shaft relative to the housing occurs. Values of permissible misalignment errors of double row self-aligning ball bearings are given in the section “selection of bearing type”. The self-aligning ball bearing is mainly used to carry radial loads and light axial loads, but they can not carry pure axial loads.

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Principal dimensions Basic load ratings Limiting speed Designation
Dynamic Static Grease Oil
d D B Cr Cor RPM RPM
mm KN r/min
17 40 12 8.67 2.45 13500 16200 1203K
17 40 12 8.67 2.45 13500 16200 1203
20 47 14 12.4 3.2 13500 16200 1204 K
20 52 21 18.2 4.75 10000 13000 2304K
20 47 14 12.4 3.2 13500 16200 1204
20 52 21 18.2 4.75 10000 13000 2304
25 52 15 14 4.05 11700 14400 1205 K
25 52 18 16.5 4.28 11700 14400 2205 K
25 62 17 18.6 6 8500 11000 1305 K
25 62 24 26.5 6.95 8500 11000 2305K
25 52 15 14 4.05 11700 14400 1205
25 52 18 16.5 4.28 11700 14400 2205
25 62 17 18.6 6 8500 11000 1305
25 62 24 26.5 6.95 8500 11000 2305
30 62 16 15.6 5.85 9000 11700 1206 K
30 62 20 23.3 5.68 9500 11700 2206 K
30 72 19 22.1 7.8 8100 10000 1306 K
30 62 16 15.6 5.85 9000 11700 1206
30 62 16 15.6 5.85 9000 11701 1206TN1
30 62 20 23.3 5.68 9500 11700 2206
30 72 19 22.1 7.8 8100 10000 1306
35 72 17 18.6 6.7 8100 10000 1207 K
35 72 23 30.1 8.6 8100 10000 2207 K
35 80 21 26 9.8 6800 8100 1307 K
35 80 31 39.7 12.9 6800 8100 2307 K
35 72 17 18.6 6.7 8100 10000 1207
35 72 23 30.1 8.6 8100 10000 2207
35 80 21 26 9.8 6800 8100 1307
35 80 31 39.7 12.9 6800 8100 2307
40 80 18 19.5 8.65 6800 8100 1208 K
40 80 23 31.2 9.8 6800 8100 2208 K
40 90 23 33.1 12.2 6000 7200 1308 K
40 90 33 52.9 15.6 6000 7200 2308 K
40 80 18 19.5 8.65 6800 8100 1208
40 80 23 31.2 9.8 6800 8100 2208
40 90 23 33.1 12.2 6000 7200 1308
40 90 33 52.9 15.6 6000 7200 2308
45 100 36 62.4 19.6 5700 6800 2309 K
45 85 19 22.4 9.65 6000 7200 1209 K
45 85 23 31.9 10.8 6000 7200 2209 K
45 100 25 38.2 16 5700 6800 1309 K
45 100 25 38.2 16 5700 6800 1309
45 100 36 62.4 19.6 5700 6800 2309
45 85 23 31.9 10.8 6000 7200 2209
45 85 19 22.4 9.65 6000 7200 1209
50 90 20 26 10.8 6300 7700 1210 K
50 90 23 33.1 11.2 6300 7700 2210 K
50 110 27 43.6 17.6 5000 6000 1310 K
50 110 40 63.7 20 5000 6000 2310 K
50 90 20 26 10.8 6300 7700 1210
50 90 23 33.1 11.2 6300 7700 2210
50 110 27 43.6 17.6 5000 6000 1310
50 110 40 63.7 20 5000 6000 2310
55 100 21 27 13.4 5000 6000 1211 K
55 120 29 51.4 22.4 4500 5400 1311 K
55 120 43 76.1 24 4500 5400 2311 K
55 100 21 27 13.4 5000 6000 1211
55 120 29 51.4 22.4 4500 5400 1311
55 120 43 76.1 24 4500 5400 2311
60 110 22 30.2 15.6 5000 6000 1212 K
60 110 28 47.8 16.8 5000 6000 2212 K
60 130 31 57.2 26.5 4050 5000 1312 K
60 130 46 87.1 28.5 4050 5000 2312K
60 110 22 30.2 15.6 5000 6000 1212
60 110 28 47.8 16.8 5000 6000 2212
60 130 31 57.2 26.5 4050 5000 1312
60 130 46 87.1 28.5 4050 5000 2312
65 140 33 63.7 29 3870 4500 1313 K
65 140 33 63.7 29 3870 4500 1313
70 150 35 74.1 27.5 3600 4320 1314 K
70 150 35 74.1 27.5 3600 4320 1314
75 160 37 79.3 30 3400 4300 1315 K
75 160 55 124 43 3400 4300 2315 K
75 160 37 79.3 30 3400 4300 1315
75 160 55 124 43 3400 4300 2315
80 170 39 88.4 33.5 3200 4100 1316
80 170 39 88.4 33.5 3200 4100 1316
85 180 41 97.9 38 3100 3600 1317
85 180 41 97.9 38 3100 3600 1317
750 920 78 276 307 260 340 118/750 K
750 920 78 276 307 260 340 118/750