15 models in the 81 series, 47.5–73 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) | |
|---|---|---|---|---|---|
| 81CT4846F2 | ANDGE | 47.5 | 46 | — | |
| 81CT4846F2A | ANDGE | 47.5 | 46 | — | |
| 81CT4847F0 | ANDGE | 47.5 | 47 | — | |
| 81CTS4851F2 | ANDGE | 47.5 | 50.8 | — | |
| 81CT4854F2 | ANDGE | 47.5 | 54 | — | |
| 81CT4857F2 | ANDGE | 47.5 | 56.5 | — | |
| 81CT4859F0 | ANDGE | 47.5 | 59 | — | |
| 81CT4859F2 | ANDGE | 47.5 | 59 | — | |
| 81CT4821 | ANDGE | 47.5 | 59.5 | — | |
| 81CT4868F2 | ANDGE | 47.5 | 68 | — | |
| 81NZ4821 | ANDGE | 47.5 | 125.5 | Cross-ref → | |
| 81TKL4801（70CT4845F0） | ANDGE | 48 | 44.7 | — | |
| 81CT5153F0 | ANDGE | 50.5 | 52.5 | — | |
| 81NZ5521 | ANDGE | 55 | 59 | Cross-ref → | |
| 81TKB7013 | ANDGE | 73 | 110 | — |
81 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