CA-type self-aligning roller bearings feature a double-row, barrel-shaped roller design and utilise a solid brass cage. They operate smoothly, offer excellent heat dissipation, possess outstanding self-aligning capabilities and a high load-carrying capacity. They are primarily designed to withstand substantial radial loads whilst also being capable of withstanding axial loads in both directions; they are impact- and vibration-resistant, making them suitable for heavy-duty applications. The bearings are not self-sealing and have an open design; external sealing devices may be fitted according to operating conditions. They are widely used in heavy-duty industrial equipment such as metallurgical rolling mills, mining equipment, cement machinery, large fans, paper-making equipment and conveyors.
| 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 | |
| 21312 CA/W33 | 21312 CAK/W33 | 60 | 130 | 31 | 217 | 239 | 5600 | 2.1 |
| 22212 CA/W33 | 22212 CAK/W33 | 60 | 110 | 28 | 162 | 164 | 6500 | 1.15 |
| 22311 CA/W33 | 22311 CAK/W33 | 55 | 120 | 43 | 279 | 279 | 4900 | 2.45 |
| 21311 CA/W33 | 21311 CAK/W33 | 55 | 120 | 29 | 159 | 163 | 6700 | 1.7 |
| 22211 CA/W33 | 22211 CAK/W33 | 55 | 100 | 25 | 131 | 127 | 7400 | 0.84 |
| 22310 CA/W33 | 22310 CAK/W33 | 50 | 110 | 40 | 225 | 224 | 5400 | 1.9 |
| 21310 CA/W33 | 21310 CAK/W33 | 50 | 110 | 27 | 159 | 163 | 6600 | 1.35 |
| 22210 CA/W33 | 22210 CAK/W33 | 50 | 90 | 23 | 109 | 107 | 8100 | 0.63 |
| 22309 CA/W33 | 22309 CAK/W33 | 45 | 100 | 36 | 187 | 183 | 6000 | 1.4 |
| 21309 CA/W33 | 21309 CAK/W33 | 45 | 100 | 25 | 127 | 125 | 7300 | 0.99 |
| 22209 CA/W33 | 22209 CAK/W33 | 45 | 85 | 23 | 103.5 | 97.9 | 8800 | 0.58 |
| 22308 CA/W33 | 22308 CAK/W33 | 40 | 90 | 33 | 153 | 140 | 6900 | 1.05 |
| 21308 CA/W33 | 21308 CAK/W33 | 40 | 90 | 23 | 109 | 108 | 8200 | 0.75 |
| 22208 CA/W33 | 22208 CAK/W33 | 40 | 80 | 23 | 97.2 | 88.2 | 9500 | 0.53 |
| 21307 CA/W33 | 21307 CAK/W33 | 35 | 80 | 21 | 79 | 70.9 | 8400 | 0.55 |
| 22207 CA/W33 | 22207 CAK/W33 | 35 | 72 | 23 | 87.9 | 83.4 | 10200 | 0.45 |
| 21306 CA/W33 | 21306 CAK/W33 | 30 | 72 | 19 | 64.5 | 60.8 | 8900 | 0.41 |
| 22206 CA/W33 | 22206 CAK/W33 | 30 | 62 | 20 | 65.6 | 59.6 | 12400 | 0.29 |
| 21305 CA/W33 | 21305 CAK/W33 | 25 | 62 | 17 | 48.8 | 41.2 | 10500 | 0.28 |
| 22205 CA/W33 | 22205 CAK/W33 | 25 | 52 | 18 | 49.1 | 43.8 | 15100 | 0.26 |
