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 | |
| 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 |
