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 | |
| 22317 E1 | 22317 E1K | 85 | 180 | - | 60 | 560 | 4000 | 7.06 |
| 21317 E1 | 21317 E1K | 85 | 180 | - | 41 | 375 | 4800 | 5.37 |
| 22217 E1 | 22217 E1K | 85 | 150 | - | 36 | 325 | 5300 | 2.65 |
| 22316 E1 | 22316 E1K | 80 | 170 | - | 58 | 510 | 4300 | 6.27 |
| 21316 E1 | 21316 E1K | 80 | 170 | - | 39 | 325 | 4800 | 2.65 |
| 22216 E1 | 22216 E1K | 80 | 140 | - | 33 | 270 | 5600 | 2.13 |
| 22315 E1 | 22315 E1K | 75 | 160 | - | 55 | 450 | 4300 | 5.18 |
| 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 |
