25 models in the 452 series, 44.45–57.15 mm bore. Every row links to the full specification page and to the cross-reference page of that model.
| Model | Brand | Bore d (mm) | OD D (mm) | Width B (mm) | |
|---|---|---|---|---|---|
| 45280 - 45220 | TIMKEN | Cross-ref → | |||
| 45280 - 45221 | TIMKEN | — | |||
| 45280 - 45222 | TIMKEN | — | |||
| 45282 - 45222 | TIMKEN | — | |||
| 45284 - 45220 | TIMKEN | Cross-ref → | |||
| 45284 - 45221 | TIMKEN | — | |||
| 45284 - 45222 | TIMKEN | — | |||
| 45285 - 45220 | TIMKEN | — | |||
| 45285 - 45221 | TIMKEN | — | |||
| 45285 - 45222 | TIMKEN | — | |||
| 45287 - 45220 | TIMKEN | — | |||
| 45287 - 45221 | TIMKEN | — | |||
| 45287 - 45222 | TIMKEN | — | |||
| 45289 - 45222 | TIMKEN | — | |||
| 45290 - 45222 | TIMKEN | — | |||
| 45291 - 45220 | TIMKEN | — | |||
| 45291 - 45221 | TIMKEN | — | |||
| 45291 - 45222 | TIMKEN | — | |||
| 45280/45220 | NACHI | 44.45 | 104.775 | 30.958 | Cross-ref → |
| 45282/20 | KOYO | 47.625 | 104.775 | 30.958 | — |
| 45284/20 | KOYO | 50.8 | 104.775 | 30.958 | — |
| 45284/45220 | NACHI | 50.8 | 104.775 | 30.163 | Cross-ref → |
| 45291/45220-B | TIMKEN | 57.15 | 30.957 | — | |
| 45289/45220 | NACHI | 57.15 | 104.775 | 30.958 | Cross-ref → |
| 45291/21 | KOYO | 57.15 | 104.775 | 30.958 | — |
452 series bearings follow the ISO dimension plan for this family, so a given number is dimensionally interchangeable between brands - see the cross-reference to confirm. Choose the suffix for your duty: shields for dry, clean positions, contact seals for wet or dusty ones, and a larger clearance class where the fit or temperature demands it.
Other Custom & Special Bearings series: 62 · 685 · 63 · 60 · SNV · K · BND · 697