| Bearing No. | Dimensions（mm） | Load ratings(KN) | Limiting speeds(r/min) | Mounting dimensions(mm) | Mass(Kg) | ||||||
| d | D | B | Cr | Cor | Grease | Oil | da（min） | Da(max) | ra(max) | ≈ | |
| 21304 | 20 | 52 | 15 | 32 | 32 | 6100 | 7500 | 27 | 45 | 1 | 0.165 |
| 21305 | 25 | 62 | 17 | 42 | 45 | 5400 | 6800 | 32 | 55 | 1 | 0.245 |
| 21306 | 30 | 72 | 19 | 58 | 64 | 4400 | 5800 | 37 | 65 | 1 | 0.425 |
| 21307 | 35 | 80 | 21 | 65 | 75 | 4200 | 5400 | 44 | 71 | 1.5 | 0.523 |
| 21308 | 40 | 90 | 23 | 89 | 99 | 3800 | 4500 | 49 | 81 | 1.5 | 0.75 |
| 21309 | 45 | 100 | 25 | 106 | 118 | 3400 | 3800 | 54 | 91 | 1.5 | 1.03 |
| 21311 | 55 | 120 | 29 | 146 | 175 | 2800 | 3400 | 65 | 110 | 2 | 1.68 |
| 21312 | 60 | 130 | 31 | 167 | 201 | 2600 | 3300 | 72 | 118 | 2.1 | 2 |
| 21313 | 65 | 140 | 33 | 188 | 235 | 2400 | 3200 | 77 | 128 | 2.1 | 2.57 |
| 21314 | 70 | 150 | 35 | 218 | 276 | 2200 | 2900 | 82 | 138 | 2.1 | 3.2 |
| 21315 | 75 | 160 | 37 | 245 | 311 | 2000 | 2800 | 87 | 148 | 2.1 | 3.76 |
| 21316 | 80 | 170 | 39 | 268 | 359 | 2000 | 2400 | 92 | 158 | 2.1 | 4.81 |
| 21317 | 85 | 180 | 41 | 307 | 397 | 1800 | 2200 | 99 | 166 | 2.5 | 5.3 |
| 21318 | 90 | 190 | 43 | 330 | 433 | 1600 | 2200 | 104 | 176 | 2.5 | 6.2 |
| 21319 | 95 | 200 | 45 | 366 | 500 | 1700 | 2200 | 109 | 186 | 2.5 | 7.1 |
| 21320 | 100 | 215 | 47 | 397 | 546 | 1600 | 2000 |
114
              |
201
                |
2.5 | 8.9 |
| 21321 | 105 | 225 | 49 | 420 | 575 | 1500 | 1900 | 119 | 211 | 2.5 | 10.1 |
| 21322 | 110 | 240 | 50 | 460 | 635 | 1400 | 1800 | 124 | 226 | 2.5 | 11.82 |