Features
Tapered roller bearings are particularly suitable where:
high radial loads occur;
high axial loads act on one side;
combined loads must be supported (radial and axial forces acting simultaneously);
precise axial guidance of the shaft is required (locating bearing function);
the bearing arrangement must have very high axial rigidity;
the bearing position is operated clearance-free or under preload (single bearings are adjusted against each other);
high running accuracy is required;
the load carrying capacity of angular contact ball bearings is no longer sufficient and the higher speed suitability of angular contact ball bearings is not required;
the bearings are not required to compensate misalignments;
the design objective comprises compact, rigid and economical bearing arrangements with a high load carrying capacity.
| Bearing No. | Boundary dimensions | Basic load rating(kN) | Limiting speed | Mass |
| mm | Dynamic | Static | rpm | Kg |
| d | D | T | B | C | Rmin | rmin | Cr | Cor | Grease | Oil | ≈ |
| 31305 | 25 | 62 | 18.25 | 17 | 13 | 1.5 | 1.5 | 40.7 | 46 | 5600 | 7500 | 0.264 |
| 31306 | 30 | 72 | 20.75 | 19 | 14 | 1.5 | 1.5 | 47.3 | 50 | 5000 | 6700 | 0.393 |
| 31307 | 35 | 80 | 22.75 | 21 | 15 | 2 | 1.5 | 61.6 | 67 | 4500 | 6000 | 0.518 |
| 31308 | 40 | 90 | 25.25 | 23 | 17 | 2 | 1.5 | 81 | 96 | 4000 | 5300 | 0.727 |
| 31309 | 45 | 100 | 27.25 | 25 | 18 | 2 | 1.5 | 91 | 102 | 3400 | 4500 | 0.947 |
| 31310 | 50 | 110 | 29.25 | 27 | 19 | 2.5 | 2 | 106 | 120 | 3200 | 4300 | 1.220 |
| 31311 | 55 | 120 | 31.5 | 29 | 21 | 2.5 | 2 | 130 | 158 | 2800 | 3800 | 1.560 |
| 31312 | 60 | 130 | 33.5 | 31 | 22 | 3 | 2.5 | 145 | 176 | 2600 | 3600 | 1.910 |
| 31313 | 65 | 140 | 36 | 33 | 23 | 3 | 2.5 | 165 | 202 | 2200 | 3200 | 2.390 |
| 31314 | 70 | 150 | 38 | 35 | 25 | 3 | 2.5 | 218 | 274 | 2400 | 3400 | 2.950 |
| 31315 | 75 | 160 | 40 | 37 | 26 | 3 | 2.5 | 209 | 245 | 1900 | 2800 | 3.390 |
| 31316 | 80 | 170 | 42.5 | 39 | 27 | 3 | 2.5 | 224 | 265 | 1900 | 2800 | 4.050 |
| 31317 | 85 | 180 | 44.5 | 41 | 28 | 4 | 3 | 242 | 285 | 1800 | 2600 | 4.600 |
| 31318 | 90 | 190 | 46.5 | 43 | 30 | 4 | 3 | 264 | 315 | 1700 | 2400 | 5.900 |
| 31319 | 95 | 200 | 49.5 | 45 | 32 | 4 | 3 | 292 | 355 | 1700 | 2400 | 6.950 |
| 31320 | 100 | 215 | 56.5 | 51 | 35 | 4 | 3 | 374 | 465 | 1600 | 2200 | 8.600 |
| 31321 | 105 | 225 | 58 | 53 | 36 | 4 | 3 | 402 | 500 | 1500 | 2000 | 9.650 |
| 31322 | 110 | 240 | 63 | 57 | 38 | 4 | 3 | 457 | 585 | 1400 | 1900 | 12.000 |
| 31324 | 120 | 260 | 68 | 62 | 42 | 4 | 3 | 539 | 695 | 1200 | 1700 | 15.500 |
| 31326 | 130 | 280 | 72 | 66 | 44 | 5 | 4 | 605 | 780 | 1100 | 1600 | 18.500 |
| 31328 | 140 | 300 | 77 | 70 | 47 | 5 | 4 | 693 | 900 | 1000 | 1500 | 24.500 |
| 31330 | 150 | 320 | 82 | 75 | 50 | 5 | 4 | 781 | 1020 | 950 | 1400 | 29.500 |
