8 models in the 50 series, 50–127 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) | |
|---|---|---|---|---|---|
| 50NQ7217 | ANDGE | 50 | 72 | 17 | Cross-ref → |
| 50FSF75 | NSK | 50 | 75 | 35 | — |
| 50FSF80 | NSK | 50 | 80 | 42 | — |
| 50KBE02 | NACHI | 50 | 90 | 49 | — |
| 50KBE22 | NACHI | 50 | 90 | 55 | — |
| 50KBE03 | NACHI | 50 | 110 | 64 | — |
| 50KDE13 | NACHI | 50 | 110 | 64 | — |
| 50SF80 | NSK | 127 | 196.85 | 111.12 | — |
50 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 Needle Roller Bearings series: K · RNA · NA · HK · NK · BK · KT · IR