53 models with a 20 mm bore in this type, with outer diameter and width. Outer diameters on this page run from 37 mm to 62 mm.
| Model | Brand | Type | OD D (mm) | Width B (mm) | |
|---|---|---|---|---|---|
| 2904 | NACHI | Self-Aligning Roller Bearings | 37 | 12 | Cross-ref → |
| 20204T | ANDGE | Self-Aligning Roller Bearings | 47 | 14 | — |
| 2204 | NTN | Self-Aligning Roller Bearings | 47 | 18 | Cross-ref → |
| 2204 | KOYO | Self-Aligning Roller Bearings | 47 | 18 | Cross-ref → |
| 2204AKTN | ANDGE | Self-Aligning Roller Bearings | 47 | 18 | — |
| 2204ATN | ANDGE | Self-Aligning Roller Bearings | 47 | 18 | — |
| 2204E | SKF | Self-Aligning Roller Bearings | 47 | 18 | — |
| 2204K | KOYO | Self-Aligning Roller Bearings | 47 | 18 | Cross-ref → |
| 2204K | NTN | Self-Aligning Roller Bearings | 47 | 18 | Cross-ref → |
| 2204TV | FAG | Self-Aligning Roller Bearings | 47 | 18 | — |
| 20304T | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304-E1-TVPB | FAG | Self-Aligning Roller Bearings | 52 | 15 | Cross-ref → |
| 21304-E1-TVPB | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | Cross-ref → |
| 21304CA | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | Cross-ref → |
| 21304CA/CC | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CA/CC/W33 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CA/W33 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CA/W33C3 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CA/W33K | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CA/W33P6 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CA/W33S1 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CAK+H304 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CAK/CCK | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CAK/W33 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CC | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | Cross-ref → |
| 21304CC | SKF | Self-Aligning Roller Bearings | 52 | 15 | Cross-ref → |
| 21304CC/W33 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CC/W33C3 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CC/W33K | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CC/W33P6 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CC/W33S1 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CCK | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | Cross-ref → |
| 21304CCK | SKF | Self-Aligning Roller Bearings | 52 | 15 | Cross-ref → |
| 21304CCK/W33 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CDE4 | NSK | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304CDKE4 | NSK | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304E.TVPB | FAG | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304ED | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304KTN1 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304TN1 | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 21304TNI | ANDGE | Self-Aligning Roller Bearings | 52 | 15 | — |
| 22205 EK + H 305 * | SKF | Self-Aligning Roller Bearings | 52 | 18 | — |
| 22205/20 E * | SKF | Self-Aligning Roller Bearings | 52 | 18 | — |
| 22205/20E | ANDGE | Self-Aligning Roller Bearings | 52 | 18 | — |
| 2304 | SKF | Self-Aligning Roller Bearings | 52 | 21 | Cross-ref → |
| 2304 | FAG | Self-Aligning Roller Bearings | 52 | 21 | Cross-ref → |
| 2304 | NTN | Self-Aligning Roller Bearings | 52 | 21 | Cross-ref → |
| 2304 | KOYO | Self-Aligning Roller Bearings | 52 | 21 | Cross-ref → |
| 2304ATN | ANDGE | Self-Aligning Roller Bearings | 52 | 21 | — |
| 2304K | KOYO | Self-Aligning Roller Bearings | 52 | 21 | Cross-ref → |
| 2304K | NTN | Self-Aligning Roller Bearings | 52 | 21 | Cross-ref → |
| 2304TNI | ANDGE | Self-Aligning Roller Bearings | 52 | 21 | — |
| 21305CDK+H305X | NSK | Self-Aligning Roller Bearings | 62 | 17 | — |
The bore is the shaft diameter, so it is the one dimension you cannot change: pick the bore first, then decide the type from the load and speed, then the outer diameter from the housing you have. If the housing is fixed, filter by outer diameter in the product center. For fits and shaft tolerances see the fit recommendations.