18 models in the 311 series, 40–380 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) | |
|---|---|---|---|---|---|
| 31144A | ANDGE | 40 | 71.8 | 37 | — |
| 311443 | ANDGE | 40 | 72 | 37 | Cross-ref → |
| 311443B | ANDGE | 40 | 72 | 37 | — |
| 311443C | ANDGE | 40 | 72 | 37 | — |
| 311KG | ANDGE | 55 | 120 | 29 | — |
| 311SFG | ANDGE | 55 | 120 | 29 | — |
| 311SG | ANDGE | 55 | 120 | 29 | — |
| 31114X2B | ANDGE | 70 | 120 | 45 | — |
| 31135 | SKF | 79.38 | — | ||
| 31144 | SKF | 79.38 | — | ||
| 31147 | SKF | 79.38 | — | ||
| 31148 | SKF | 79.38 | — | ||
| 31152 | SKF | 79.38 | — | ||
| 31179 | SKF | 79.38 | — | ||
| 31185 | SKF | 79.38 | — | ||
| 31189 | SKF | 79.38 | — | ||
| 31160X2/P5 | ANDGE | 300 | 500 | 95 | — |
| 31176X2 | ANDGE | 380 | 620 | 112 | — |
311 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