| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| NKI 45/35 TN | 45 | 62 | 35 |
| NA 4909.2RS | 45 | 68 | 23 |
| NA 4909 RS | 45 | 68 | 22 |
| NKI 45/25 TN | 45 | 62 | 25 |
| NA 6909 | 45 | 68 | 40 |
| NA 4909 | 45 | 68 | 22 |
| NKIS 45 | 45 | 72 | 22 |
| NKI 42/30 | 42 | 57 | 30 |
| NKI 42/20 | 42 | 57 | 20 |
| NAO 40x55x17 | 40 | 55 | 17 |
| NKI 40/20 TN | 40 | 55 | 20 |
| NKI 40/30 TN | 40 | 55 | 30 |
| NA 6908 | 40 | 62 | 40 |
| NA 4908 | 40 | 62 | 22 |
| NKIS 40 | 40 | 65 | 22 |
| NA 4908 RS | 40 | 62 | 23 |
| NA 4908.2RS | 40 | 62 | 23 |
| NKI 38/30 | 38 | 53 | 30 |
| NKI 38/20 | 38 | 53 | 20 |
| NKIS 35 | 35 | 58 | 22 |
| NA 4907 RS | 35 | 55 | 21 |
| NAO 35x55x20 | 35 | 55 | 20 |
| NA 6907 | 35 | 55 | 36 |
| NAO 35x50x17 | 35 | 50 | 17 |
| NKI 35/30 | 35 | 50 | 30 |
| NA 4907 | 35 | 55 | 20 |
| NA 4907.2RS | 35 | 55 | 21 |
| NKI 35/20 TN | 35 | 50 | 20 |
| NA 49/32 | 32 | 52 | 20 |
| NA 69/32 | 32 | 52 | 36 |
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