8 models in the 678 series, 8–8 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) | |
|---|---|---|---|---|---|
| 678 | ANDGE | 8 | 12 | 2.5 | — |
| 678-Z | ANDGE | 8 | 12 | 3.5 | — |
| 678-ZC3 | ANDGE | 8 | 12 | 3.5 | — |
| 678-ZZ | ANDGE | 8 | 12 | 3.5 | — |
| 678-ZZC3 | ANDGE | 8 | 12 | 3.5 | — |
| 678-ZZC3P6QE6 | ANDGE | 8 | 12 | 3.5 | — |
| 678A | NTN | 8 | 12 | 2.5 | — |
| 678C3 | ANDGE | 8 | 12 | 2.5 | — |
678 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 Deep Groove Ball Bearings series: 62 · 60 · 63 · 618 · 619 · 69 · 68 · 160