19 models in the 278 series, 38.1–38.1 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) | |
|---|---|---|---|---|---|
| 27820 | TIMKEN | — | |||
| 27820D | TIMKEN | — | |||
| 27821 | TIMKEN | — | |||
| 27875 | TIMKEN | — | |||
| 27875 - 27820D | TIMKEN | — | |||
| 27879 | TIMKEN | — | |||
| 27880 | TIMKEN | Cross-ref → | |||
| 27880 | ANDGE | Cross-ref → | |||
| 27880 - 27820 | TIMKEN | — | |||
| 27880 - 27820D | TIMKEN | — | |||
| 27880/20 | ANDGE | 24.608 | Cross-ref → | ||
| 27881 | TIMKEN | — | |||
| 27881 - 27820 | TIMKEN | — | |||
| 27881 - 27820D | TIMKEN | — | |||
| 27880/27820 | ANDGE | 38.1 | 80.035 | — | |
| 27880/27820D | ANDGE | 38.1 | 80.035 | — | |
| 27880/27880-2 | ANDGE | 38.1 | 80.035 | — | |
| 27881/27820 | ANDGE | 38.1 | 80.035 | — | |
| 27881/27881-2 | ANDGE | 38.1 | 80.035 | — |
278 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 Tapered Roller Bearings series: EE · HM · LM · M · 320 · BT · 322 · L