The E1 series comprises high-performance, optimised self-aligning roller bearings. Building upon the traditional design, they feature a comprehensive upgrade to the internal geometry, incorporating a double-row symmetrical barrel-shaped roller design. The traditional fixed inner ring centre rib has been eliminated, and the bearings are fitted with a two-piece stamped hardened steel cage, utilising a floating guide ring to ensure precise roller guidance. Compared with the CC type, the E1 features a more rational internal kinematic design, resulting in smoother roller operation and greater fatigue resistance; compared with the CA type, it strikes a balance between load-carrying capacity and cost-effectiveness. It is widely used in high-end heavy-duty equipment—such as vibrating screens, crushers, large gearboxes, metallurgical equipment, cement vertical mills, heavy-duty fans and paper-making machinery—that are subjected to heavy impact loads and severe load fluctuations over extended periods.
| Bearing model number | Basic Dimensions（mm） | Basic load （KN） |
Rated speed(rpm) | Bearing weight | ||||
|---|---|---|---|---|---|---|---|---|
| Cylindrical hole | Conical hole | d inner diameter |
D outer diameter |
B thickness |
Dynamic load Cr |
Static load Cor |
Limiting Speed | |
| 22211 E1 | 22211 E1K | 55 | 100 | - | 25 | 146 | 8500 | 0.85 |
| 22310 E1 | 22310 E1K | 50 | 110 | - | 40 | 224 | 6000 | 1.9 |
| 21310 E1 | 21310 E1K | 50 | 110 | - | 27 | 146 | 8500 | 0.845 |
| 22210 E1 | 22210 E1K | 50 | 90 | - | 23 | 114 | 9500 | 0.62 |
| 22309 E1 | 22309 E1K | 45 | 100 | - | 36 | 183 | 6700 | 1.39 |
| 21309 E1 | 21309 E1K | 45 | 100 | - | 25 | 146 | 8500 | 0.845 |
| 22209 E1 | 22209 E1K | 45 | 85 | - | 23 | 106 | 10000 | 0.589 |
| 22308 E1 | 22308 E1K | 40 | 90 | - | 33 | 150 | 7500 | 1.05 |
| 21308 E1 | 21308 E1K | 40 | 90 | - | 23 | 114 | 9500 | 0.7 |
| 22208 E1 | 22208 E1K | 40 | 80 | - | 23 | 95 | 10000 | 0.528 |
| 22207 E1 | 22207 E1K | 35 | 72 | - | 23 | 83 | 11000 | 0.43 |
| 22206 E1 | 22206 E1K | 30 | 62 | - | 20 | 62 | 13000 | 0.27 |
| 22205 E1 | 22205 E1K | 25 | 52 | - | 18 | 45 | 17000 | 0.18 |
| 22236 E1 | 22236 E1K | 180 | 320 | - | 86 | 1660 | 2400 | 29.2 |
| 22234 E1 | 22234 E1K | 170 | 310 | - | 86 | 1560 | 2400 | 27.8 |
| 22232 E1 | 22232 E1K | 160 | 290 | - | 80 | 1400 | 2600 | 23.3 |
| 22330 E1 | 22330 E1K | 150 | 320 | - | 108 | 1860 | 2000 | 42.2 |
| 22230 E1 | 22230 E1K | 150 | 270 | - | 73 | 1220 | 2600 | 18.2 |
| 22328 E1 | 22328 E1K | 140 | 300 | - | 102 | 1630 | 2200 | 35.1 |
| 22228 E1 | 22228 E1K | 140 | 250 | - | 68 | 1040 | 2400 | 14.2 |
