| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| KR 52 PPXA | 20 | 52 | 66 |
| KR 52 XB | 20 | 52 | 66 |
| NUKR 52 A | 20 | 52 | 66 |
| KRV 47 PPXA | 20 | 47 | 66 |
| NUKR 47 XA | 20 | 47 | 66 |
| KR 47 B | 20 | 47 | 66 |
| KRV 47 PPA | 20 | 47 | 66 |
| KRVE 47 PPA | 24 | 47 | 66 |
| NUKRE 47 A | 24 | 47 | 66 |
| NUKR 47 A | 20 | 47 | 66 |
| KRE 47 PPA | 24 | 47 | 66 |
| KR 47 PPA | 20 | 47 | 66 |
| PWKRE 47.2RS | 24 | 47 | 66 |
| KR 47 XB | 20 | 47 | 66 |
| KR 47 PPXA | 20 | 47 | 66 |
| PWKR 47.2RS | 20 | 47 | 66 |
| NUKR 40 A | 18 | 40 | 58 |
| PWKRE 40.2RS | 22 | 40 | 58 |
| NUKRE 40 A | 22 | 40 | 58 |
| KR 40 PPXA | 18 | 40 | 58 |
| KRVE 40 PPA | 22 | 40 | 58 |
| KR 40 B | 18 | 40 | 58 |
| KR 40 PPA | 18 | 40 | 58 |
| KRV 40 PPA | 18 | 40 | 58 |
| NUKR 40 XA | 18 | 40 | 58 |
| KRV 40 PPXA | 18 | 40 | 58 |
| KRE 40 PPA | 22 | 40 | 58 |
| PWKR 40.2RS | 18 | 40 | 58 |
| KR 40 XB | 18 | 40 | 58 |
| NUKR 35 XA | 16 | 35 | 52 |
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