8 models in the 321 series, 50–510 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) | |
|---|---|---|---|---|---|
| 321 | TIMKEN | — | |||
| 321 - 312 | TIMKEN | — | |||
| 321 - 313 | TIMKEN | — | |||
| 321240 | TIMKEN | — | |||
| 321245 | TIMKEN | — | |||
| 32110X | ANDGE | 50 | 80 | 20 | — |
| 32109 | ANDGE | 95 | 145 | 32 | — |
| 321/510X3DF | ANDGE | 510 | 880 | 350 | — |
321 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