81 models with a 40 mm bore in this type, with outer diameter and width. Outer diameters on this page run from 23 mm to 100 mm.
| Model | Brand | Type | OD D (mm) | Width B (mm) | |
|---|---|---|---|---|---|
| 2208-2RS | ANDGE | Self-Aligning Ball Bearings | 23 | 80 | — |
| 2308-2RS | ANDGE | Self-Aligning Ball Bearings | 33 | 90 | — |
| 1209K;H209X | NTN | Self-Aligning Ball Bearings | 65 | 33 | Cross-ref → |
| 1309K;H309X | NTN | Self-Aligning Ball Bearings | 65 | 39 | Cross-ref → |
| 2209K;H309X | NTN | Self-Aligning Ball Bearings | 65 | 39 | Cross-ref → |
| 2309K;H2309X | NTN | Self-Aligning Ball Bearings | 65 | 50 | Cross-ref → |
| 11208 TN9 | SKF | Self-Aligning Ball Bearings | 80 | 56 | — |
| 11208-TVH | FAG | Self-Aligning Ball Bearings | 80 | 18 | — |
| 11208E | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208 | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | Cross-ref → |
| 1208 | NSK | Self-Aligning Ball Bearings | 80 | 18 | Cross-ref → |
| 1208 EKTN9 | SKF | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208 ETN9 | SKF | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208-K-TVH-C3 | FAG | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208-K-TVH-C3 + H208 | FAG | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208-TVH | FAG | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208A | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208AK | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208AKTN | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208ATN | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208K | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | Cross-ref → |
| 1208K | NSK | Self-Aligning Ball Bearings | 80 | 18 | Cross-ref → |
| 1208KTN | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | Cross-ref → |
| 1208KTN1 | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | Cross-ref → |
| 1208S | NTN | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208SK | NTN | Self-Aligning Ball Bearings | 80 | 18 | — |
| 1208TN | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | Cross-ref → |
| 1208TN1 | ANDGE | Self-Aligning Ball Bearings | 80 | 18 | Cross-ref → |
| 2208 | NSK | Self-Aligning Ball Bearings | 80 | 23 | Cross-ref → |
| 2208 | ANDGE | Self-Aligning Ball Bearings | 80 | 23 | Cross-ref → |
| 2208 E-2RS1KTN9 | SKF | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208 E-2RS1TN9 | SKF | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208 EKTN9 | SKF | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208 ETN9 | SKF | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208-2RS-TVH | FAG | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208-K-2RS-TVH-C3 | FAG | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208-K-2RS-TVH-C3 + H308 | FAG | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208-K-TVH-C3 | FAG | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208-K-TVH-C3 + H308 | FAG | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208-TVH | FAG | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208AK | ANDGE | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208K | ANDGE | Self-Aligning Ball Bearings | 80 | 23 | Cross-ref → |
| 2208K | NSK | Self-Aligning Ball Bearings | 80 | 23 | Cross-ref → |
| 2208KTN1 | ANDGE | Self-Aligning Ball Bearings | 80 | 23 | Cross-ref → |
| 2208S | NTN | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208SK | NTN | Self-Aligning Ball Bearings | 80 | 23 | — |
| 2208TN1 | ANDGE | Self-Aligning Ball Bearings | 80 | 23 | Cross-ref → |
| 1209 EKTN9 + H 209 | SKF | Self-Aligning Ball Bearings | 85 | 19 | — |
| 2209 E-2RS1 KTN9 + H 309 C | SKF | Self-Aligning Ball Bearings | 85 | 23 | — |
| 2209 EKTN9 + H 309 | SKF | Self-Aligning Ball Bearings | 85 | 23 | — |
| 1308 | ANDGE | Self-Aligning Ball Bearings | 90 | 23 | Cross-ref → |
| 1308 | NSK | Self-Aligning Ball Bearings | 90 | 23 | Cross-ref → |
| 1308 ETN9 | SKF | Self-Aligning Ball Bearings | 90 | 23 | — |
| 1308-K-TVH-C3 | FAG | Self-Aligning Ball Bearings | 90 | 23 | — |
| 1308-K-TVH-C3 + H308 | FAG | Self-Aligning Ball Bearings | 90 | 23 | — |
| 1308-TVH | FAG | Self-Aligning Ball Bearings | 90 | 23 | — |
| 1308AK | ANDGE | Self-Aligning Ball Bearings | 90 | 23 | — |
| 1308K | ANDGE | Self-Aligning Ball Bearings | 90 | 23 | Cross-ref → |
| 1308K | NSK | Self-Aligning Ball Bearings | 90 | 23 | Cross-ref → |
| 1308KTN | ANDGE | Self-Aligning Ball Bearings | 90 | 23 | Cross-ref → |
| 1308KTN1 | ANDGE | Self-Aligning Ball Bearings | 90 | 23 | Cross-ref → |
| 1308S | NTN | Self-Aligning Ball Bearings | 90 | 23 | — |
| 1308SK | NTN | Self-Aligning Ball Bearings | 90 | 23 | — |
| 1308TN | ANDGE | Self-Aligning Ball Bearings | 90 | 23 | Cross-ref → |
| 1308TN1 | ANDGE | Self-Aligning Ball Bearings | 90 | 23 | Cross-ref → |
| 2308 | ANDGE | Self-Aligning Ball Bearings | 90 | 33 | Cross-ref → |
| 2308 | NSK | Self-Aligning Ball Bearings | 90 | 33 | Cross-ref → |
| 2308 E-2RS1TN9 | SKF | Self-Aligning Ball Bearings | 90 | 33 | — |
| 2308-2RS-TVH | FAG | Self-Aligning Ball Bearings | 90 | 33 | — |
| 2308-K-TVH-C3 | FAG | Self-Aligning Ball Bearings | 90 | 33 | — |
| 2308-K-TVH-C3 + H2308 | FAG | Self-Aligning Ball Bearings | 90 | 33 | — |
| 2308-TVH | FAG | Self-Aligning Ball Bearings | 90 | 33 | — |
| 2308AK | ANDGE | Self-Aligning Ball Bearings | 90 | 33 | — |
| 2308K | ANDGE | Self-Aligning Ball Bearings | 90 | 33 | Cross-ref → |
| 2308K | NSK | Self-Aligning Ball Bearings | 90 | 33 | Cross-ref → |
| 2308KTN1 | ANDGE | Self-Aligning Ball Bearings | 90 | 33 | Cross-ref → |
| 2308S | NTN | Self-Aligning Ball Bearings | 90 | 33 | — |
| 2308SK | NTN | Self-Aligning Ball Bearings | 90 | 33 | — |
| 2308TN1 | ANDGE | Self-Aligning Ball Bearings | 90 | 33 | Cross-ref → |
| 1309 EKTN9 + H 309 | SKF | Self-Aligning Ball Bearings | 100 | 25 | — |
| 2309 EKTN9 + H 2309 | SKF | Self-Aligning Ball Bearings | 100 | 36 | — |
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.