| Bearing model | Boundary Dimensions（mm） | Speed Rating(ipm) | Load Rating （kn） | Bearing type | ||||
|---|---|---|---|---|---|---|---|---|
| d | D | B | Grease lubrication | Oil lubrication | Dynamic Cr | Static Cor | ||
| 21305 CC | 25 | 62 | 17 | 49.1 | 41.5 | 9300 | 12000 | Spherical Roller Bearings |
| 21306 CC | 30 | 72 | 19 | 65.7 | 61 | 8200 | 10000 | Spherical Roller Bearings |
| 21306 CCK | 25 | 72 | 19 | 65.7 | 61 | 8200 | 10000 | Spherical Roller Bearings |
| 21306 CCK | 30 | 72 | 19 | 65.7 | 61 | 8200 | 10000 | Spherical Roller Bearings |
| 21307 CC | 35 | 80 | 21 | 79.2 | 72 | 7300 | 9500 | Spherical Roller Bearings |
| 21307 CCK | 30 | 80 | 21 | 79.2 | 72 | 7300 | 9500 | Spherical Roller Bearings |
| 21307 CCK | 35 | 80 | 21 | 79.2 | 72 | 7300 | 9500 | Spherical Roller Bearings |
| 21308 CCKW33 | 35 | 90 | 23 | 107 | 108 | 7000 | 9500 | Spherical Roller Bearings |
| 21308 CCKW33 | 35 | 90 | 23 | 107 | 108 | 7000 | 9500 | Spherical Roller Bearings |
| 21308 CCKW33 | 40 | 90 | 23 | 107 | 108 | 7000 | 9500 | Spherical Roller Bearings |
| 21308 CCW33 | 40 | 90 | 23 | 107 | 108 | 7000 | 9500 | Spherical Roller Bearings |
| 21309 CCKW33 | 40 | 100 | 25 | 129 | 127 | 6300 | 8500 | Spherical Roller Bearings |
| 21309 CCKW33 | 40 | 100 | 25 | 129 | 127 | 6300 | 8500 | Spherical Roller Bearings |
| 21309 CCKW33 | 45 | 100 | 25 | 129 | 127 | 6300 | 8500 | Spherical Roller Bearings |
| 21309 CCW33 | 45 | 100 | 25 | 129 | 127 | 6300 | 8500 | Spherical Roller Bearings |
| 21310 CCKW33 | 45 | 110 | 27 | 159 | 163 | 5600 | 7500 | Spherical Roller Bearings |
| 21310 CCKW33 | 45 | 110 | 27 | 159 | 163 | 5600 | 7500 | Spherical Roller Bearings |
| 21310 CCKW33 | 50 | 110 | 27 | 159 | 163 | 5600 | 7500 | Spherical Roller Bearings |
| 21310 CCW33 | 50 | 110 | 27 | 159 | 163 | 5600 | 7500 | Spherical Roller Bearings |
| 21311 CCKW33 | 50 | 120 | 29 | 159 | 163 | 5600 | 7500 | Spherical Roller Bearings |
| 21311 CCKW33 | 50 | 120 | 29 | 159 | 163 | 5600 | 7500 | Spherical Roller Bearings |
| 21311 CCKW33 | 55 | 120 | 29 | 159 | 163 | 5600 | 7500 | Spherical Roller Bearings |
| 21311 CCW33 | 55 | 120 | 29 | 159 | 163 | 5600 | 7500 | Spherical Roller Bearings |
| 21312 CCKW33 | 55 | 130 | 31 | 217 | 240 | 4800 | 6300 | Spherical Roller Bearings |
| 21312 CCKW33 | 55 | 130 | 31 | 217 | 240 | 4800 | 6300 | Spherical Roller Bearings |
| 21312 CCKW33 | 60 | 130 | 31 | 217 | 240 | 4800 | 6300 | Spherical Roller Bearings |
| 21312 CCW33 | 60 | 130 | 31 | 217 | 240 | 4800 | 6300 | Spherical Roller Bearings |
| 21313 CCKW33 | 60 | 140 | 33 | 243 | 270 | 4300 | 6000 | Spherical Roller Bearings |
| 21313 CCKW33 | 60 | 140 | 33 | 243 | 270 | 4300 | 6000 | Spherical Roller Bearings |
| 21313 CCKW33 | 65 | 140 | 33 | 243 | 270 | 4300 | 6000 | Spherical Roller Bearings |
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