18 models in the 378 series, 49.212–300 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) | |
|---|---|---|---|---|---|
| 378A | TIMKEN | — | |||
| 378A - 372 | TIMKEN | — | |||
| 378A - 372A | TIMKEN | — | |||
| 378A - 374 | TIMKEN | — | |||
| 378DE | TIMKEN | — | |||
| 378DE - 372 | TIMKEN | — | |||
| 378DE - 372A | TIMKEN | — | |||
| 378DE - 374 | TIMKEN | — | |||
| 378DW | TIMKEN | — | |||
| 378DW - 372 | TIMKEN | — | |||
| 378DW - 372A | TIMKEN | — | |||
| 378DW - 374 | TIMKEN | — | |||
| 378DE/374 | TIMKEN | 49.212 | 93.264 | 53.188 | — |
| 378DE/372A | TIMKEN | 49.212 | 96.838 | 53.188 | — |
| 378DE/372 | TIMKEN | 49.212 | 100 | 53.188 | — |
| 37825 | ANDGE | 260 | 400 | 150 | Cross-ref → |
| 37852 | ANDGE | 260 | 400 | — | |
| 37860 | ANDGE | 300 | 340 | — |
378 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