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 | |
| 21315 E1 | 21315 E1K | 75 | 160 | - | 37 | 325 | 4800 | 2.86 |
| 22215 E1 | 22215 E1K | 75 | 130 | - | 31 | 236 | 6300 | 1.72 |
| 22314 E1 | 22314 E1K | 70 | 150 | - | 51 | 390 | 4500 | 4.21 |
| 21314 E1 | 21314 E1K | 70 | 150 | - | 35 | 270 | 5000 | 3 |
| 22214 E1 | 22214 E1K | 70 | 125 | - | 31 | 228 | 6300 | 1.65 |
| 22313 E1 | 22313 E1K | 65 | 140 | - | 48 | 365 | 4800 | 3.57 |
| 21313 E1 | 21313 E1K | 65 | 140 | - | 33 | 270 | 5000 | 2.42 |
| 22213 E1 | 22213 E1K | 65 | 120 | - | 31 | 208 | 6700 | 1.55 |
| 22312 E1 | 22312 E1K | 60 | 130 | - | 46 | 310 | 5000 | 2.89 |
| 21312 E1 | 21312 E1K | 60 | 130 | - | 31 | 228 | 6300 | 1.78 |
| 22212 E1 | 22212 E1K | 60 | 110 | - | 28 | 166 | 7500 | 1.12 |
| 22311 E1 | 22311 E1K | 55 | 120 | - | 43 | 260 | 5600 | 2.27 |
| 21311 E1 | 21311 E1K | 55 | 120 | - | 29 | 166 | 6300 | 1.19 |
| 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 |
