| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| NX 30 Z | 42 | ||
| NKX 30 | 42 | ||
| NKXR 30 Z | 42 | ||
| NKXR 30 | 42 | ||
| NX 30 | 42 | ||
| NKX 30 Z | 42 | ||
| NKXR 25 Z | 37 | ||
| NKXR 25 | 37 | ||
| NKX 25 | 37 | ||
| NX 25 | 37 | ||
| NKX 25 Z | 37 | ||
| NX 25 Z | 37 | ||
| NKXR 20 | 30 | ||
| NKXR 20 Z | 30 | ||
| NKX 20 | 30 | ||
| NKX 20 Z | 30 | ||
| NX 20 Z | 30 | ||
| NX 20 | 30 | ||
| NKX 17 Z | 26 | ||
| NX 17 | 26 | ||
| NKXR 17 Z | 26 | ||
| NX 17 Z | 26 | ||
| NKX 17 | 26 | ||
| NKXR 17 | 26 | ||
| NX 15 | 24 | ||
| NKX 15 | 24 | ||
| NX 15 Z | 24 | ||
| NKXR 15 Z | 24 | ||
| NKXR 15 | 24 | ||
| NKX 15 Z | 24 | ||
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