8 models in the 637 series, 7–161.93 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) | |
|---|---|---|---|---|---|
| 63796 | SKF | 206.25 | 15.19 | — | |
| 637 | KOYO | 7 | 26 | 9 | Cross-ref → |
| 637ZZ | KOYO | 7 | 26 | 9 | Cross-ref → |
| 637/632-B | TIMKEN | 60.325 | 136.652 | 16.662 | — |
| 63700 | SKF | 161.93 | — | ||
| 63717 | SKF | 161.93 | — | ||
| 63733 | SKF | 161.93 | — | ||
| 63734 | SKF | 161.93 | — |
637 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 Custom & Special Bearings series: 62 · 685 · 63 · 60 · SNV · K · BND · 697