8 models in the 123 series, 31.75–31.75 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) | |
|---|---|---|---|---|---|
| 12329 | SKF | 31.75 | — | ||
| 12343 | SKF | 31.75 | — | ||
| 12363 | SKF | 31.75 | — | ||
| 12371 | SKF | 31.75 | — | ||
| 12383 | SKF | 31.75 | — | ||
| 12384 | SKF | 31.75 | — | ||
| 12386 | SKF | 31.75 | — | ||
| 12391 | SKF | 31.75 | — |
123 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 Bearing Accessories series: H · AH · 710 · FIR · 72 · SNW · 73 · C