| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| 2311 | 55 | 120 | 43 |
| 2211 E-2RS1KTN9 | 55 | 100 | 25 |
| 2211 EKTN9 | 55 | 100 | 25 |
| 1211 EKTN9 | 55 | 100 | 21 |
| 2311 KM | 55 | 120 | 43 |
| 1311 EKTN9 | 50 | 120 | 29 |
| 2310 M | 50 | 110 | 40 |
| 2310 K | 50 | 110 | 40 |
| 2211 EKTN9 | 50 | 100 | 25 |
| 11210 TN9 | 50 | 90 | 58 |
| 2210 E-2RS1KTN9 | 50 | 90 | 23 |
| 2310 E-2RS1KTN9 | 50 | 110 | 40 |
| 1211 EKTN9 | 50 | 100 | 21 |
| 1210 EKTN9 | 50 | 90 | 20 |
| 2311 K | 50 | 120 | 43 |
| 2211 E-2RS1KTN9 | 50 | 100 | 25 |
| 1210 ETN9 | 50 | 90 | 20 |
| 2310 E-2RS1TN9 | 50 | 110 | 40 |
| 2210 E-2RS1TN9 | 50 | 90 | 23 |
| 1310 ETN9 | 50 | 110 | 27 |
| 2310 | 50 | 110 | 40 |
| 2210 ETN9 | 50 | 90 | 23 |
| 1310 EKTN9 | 50 | 110 | 27 |
| 2210 EKTN9 | 50 | 90 | 23 |
| 1309 ETN9 | 45 | 100 | 25 |
| 1209 EKTN9 | 45 | 85 | 19 |
| 2309 EKTN9 | 45 | 100 | 36 |
| 2310 E-2RS1KTN9 | 45 | 110 | 40 |
| 2210 EKTN9 | 45 | 90 | 23 |
| 2310 K | 45 | 110 | 40 |
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