10 models in the UCFK series, 12–50 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) | |
|---|---|---|---|---|---|
| UCFK201 | NACHI | 12 | 31 | — | |
| UCFK202 | NACHI | 15 | 31 | — | |
| UCFK203 | NACHI | 17 | 31 | — | |
| UCFK204 | NACHI | 20 | 31 | Cross-ref → | |
| UCFK205 | NACHI | 25 | 34 | Cross-ref → | |
| UCFK206 | NACHI | 30 | 38.1 | Cross-ref → | |
| UCFK207 | NACHI | 35 | 42.9 | Cross-ref → | |
| UCFK208 | NACHI | 40 | 49.2 | Cross-ref → | |
| UCFK209 | NACHI | 45 | 49.2 | Cross-ref → | |
| UCFK210 | NACHI | 50 | 51.6 | Cross-ref → |
UCFK 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