1919 models with a 12 mm bore in this type, with outer diameter and width. Outer diameters on this page run from 12 mm to 102 mm.
| Model | Brand | Type | OD D (mm) | Width B (mm) | |
|---|---|---|---|---|---|
| 6301T1XZZ | NSK | Custom & Special Bearings | 37 | 12 | — |
| 6301ZE | NACHI | Custom & Special Bearings | 37 | 12 | — |
| 6301ZEN | NACHI | Custom & Special Bearings | 37 | 12 | — |
| 6301ZENR | NACHI | Custom & Special Bearings | 37 | 12 | — |
| 6301ZN | NTN | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 6301ZZ | KOYO | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 6301ZZE | NACHI | Custom & Special Bearings | 37 | 12 | — |
| 7301 | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301AC/P4 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 7301AC/P5 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 7301AC/P6 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 7301B | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301BDB | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301BDF | NSK | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301BDF | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301BDT | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301BTN/P5 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 7301BTN/P6 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 7301C | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301C/P4 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 7301C/P5 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 7301C/P6 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 7301CDB | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301CDF | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301CDT | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301DB | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301DF | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| 7301DT | NACHI | Custom & Special Bearings | 37 | 12 | Cross-ref → |
| C6301 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| C6301-2RS | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| C6301-RS | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| C6301-Z | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| C6301-ZZ | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| CS6301 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| CS6301-2RS | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| CS6301-RS | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| CS6301-Z | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| CS6301-ZZ | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| EC-6301-2RS1 | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| S6301-2RSR | FAG | Custom & Special Bearings | 37 | 12 | — |
| U6301-2RS | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| U6301-2RZ | ANDGE | Custom & Special Bearings | 37 | 12 | — |
| 6203-12 | ANDGE | Custom & Special Bearings | 40 | 12 | — |
| 6203-12-2RS | ANDGE | Custom & Special Bearings | 40 | 12 | — |
| 6203-12-2Z | ANDGE | Custom & Special Bearings | 40 | 12 | — |
| 6203-12-RS | ANDGE | Custom & Special Bearings | 40 | 12 | — |
| 6203-12-Z | ANDGE | Custom & Special Bearings | 40 | 12 | — |
| AEL201 | NTN | Custom & Special Bearings | 40 | 28.6 | — |
| AY12-NPP-B | INA | Custom & Special Bearings | 40 | 22 | — |
| B1 | NACHI | Custom & Special Bearings | 40 | 22 | Cross-ref → |
| B12-40D | ANDGE | Custom & Special Bearings | 40 | 12 | — |
| B12-53D | ANDGE | Custom & Special Bearings | 40 | 10 | — |
| B12-79D | ANDGE | Custom & Special Bearings | 40 | 14 | — |
| BF12040 | ANDGE | Custom & Special Bearings | 40 | 1000 | — |
| EN201 | NSK | Custom & Special Bearings | 40 | 28.6 | — |
| GAY12-NPP-B | INA | Custom & Special Bearings | 40 | 22 | — |
| GAY12-NPP-B-FA164 | INA | Custom & Special Bearings | 40 | 22 | — |
| GRAE12-NPP-B | INA | Custom & Special Bearings | 40 | 19 | — |
| GYE12-KRR-B | INA | Custom & Special Bearings | 40 | 27.4 | — |
| GYE12-KRR-B-VA | INA | Custom & Special Bearings | 40 | 25 | — |
| KH201+ER | ANDGE | Custom & Special Bearings | 40 | 28.6 | — |
| KH201AE | NACHI | Custom & Special Bearings | 40 | 19.1 | — |
| RAE12-NPP-B | INA | Custom & Special Bearings | 40 | 19 | — |
| RAE12-NPP-FA106 | INA | Custom & Special Bearings | 40 | 28.6 | — |
| SB201 | FYH | Custom & Special Bearings | 40 | 22 | Cross-ref → |
| UB201 | NSK | Custom & Special Bearings | 40 | 22 | Cross-ref → |
| UC201* | ANDGE | Custom & Special Bearings | 40 | 27.4 | Cross-ref → |
| UG201 | ANDGE | Custom & Special Bearings | 40 | 37.4 | — |
| YET203/12 | SKF | Custom & Special Bearings | 40 | 28.6 | — |
| LY-7001 | ANDGE | Custom & Special Bearings | 41.8 | 31 | — |
| 12BC04S3 | ANDGE | Custom & Special Bearings | 42 | 10 | Cross-ref → |
| BEAS 012042-2RS | SKF | Custom & Special Bearings | 42 | 25 | — |
| BEAS 012042-2RZ | SKF | Custom & Special Bearings | 42 | 25 | — |
| LFR5301 | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LFR5301-10-2Z | INA | Custom & Special Bearings | 42 | 19 | — |
| LFR5301-2RS | ANDGE | Custom & Special Bearings | 42 | 19 | Cross-ref → |
| LFR5301-2RZ | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LFR5301-KDD | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LFR5301-NR | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LFR5301-RS | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LFR5301-RZ | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LFR5301-Z | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LFR5301-ZZ | ANDGE | Custom & Special Bearings | 42 | 19 | Cross-ref → |
| LFR5301N | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LR5301 | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LR5301-2RS | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LR5301-R400 | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LR5301-R500 | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LR5301-ZZ | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| LR5301A-2RS | ANDGE | Custom & Special Bearings | 42 | 19 | — |
| SQ12C-RS | ANDGE | Custom & Special Bearings | 42 | 57.5 | — |
| ZKLFA1263-2RS | INA | Custom & Special Bearings | 42 | 25 | — |
| ZKLFA1263-2Z | INA | Custom & Special Bearings | 42 | 25 | — |
| ZKLN1242-2RS | INA | Custom & Special Bearings | 42 | 25 | — |
| ZKLN1242-2RS-PE | INA | Custom & Special Bearings | 42 | 25 | — |
| ZKLN1242-2Z | INA | Custom & Special Bearings | 42 | 25 | — |
| ER201 | ANDGE | Custom & Special Bearings | 47 | 31 | Cross-ref → |
| NA201* | ANDGE | Custom & Special Bearings | 47 | 43.5 | Cross-ref → |
| UC201 | NACHI | Custom & Special Bearings | 47 | 31 | Cross-ref → |
| RABRB12/47-FA106 | INA | Custom & Special Bearings | 47.3 | 30.9 | — |
| BEAM 012055-2RS | SKF | Custom & Special Bearings | 55 | 25 | — |
| BEAM 012055-2RZ | SKF | Custom & Special Bearings | 55 | 25 | — |
| ZAXFM1255 | INA | Custom & Special Bearings | 55 | 20 | — |
| ZKLF1255-2RS | INA | Custom & Special Bearings | 55 | 25 | — |
| ZKLF1255-2RS-PE | INA | Custom & Special Bearings | 55 | 25 | — |
| ZKLF1255-2Z | INA | Custom & Special Bearings | 55 | 25 | — |
| UC WFB201 | ANDGE | Custom & Special Bearings | 62 | 32 | — |
| UCC201* | ANDGE | Custom & Special Bearings | 67 | 27.4 | Cross-ref → |
| UC C201 | ANDGE | Custom & Special Bearings | 72 | 31 | Cross-ref → |
| UCFU201* | ANDGE | Custom & Special Bearings | 76 | 54 | — |
| UCT201* | ANDGE | Custom & Special Bearings | 78 | 62 | Cross-ref → |
| SALF201 | ANDGE | Custom & Special Bearings | 81 | 63.5 | — |
| NAFU201 | ANDGE | Custom & Special Bearings | 86 | 63.5 | — |
| UCFU201 | ANDGE | Custom & Special Bearings | 86 | 64 | — |
| UC T201 | ANDGE | Custom & Special Bearings | 94 | 89 | Cross-ref → |
| UCFC201* | ANDGE | Custom & Special Bearings | 97 | 75 | Cross-ref → |
| UCFLU201 | ANDGE | Custom & Special Bearings | 99 | 76.5 | — |
| UCFLU201* | ANDGE | Custom & Special Bearings | 99 | 76.5 | — |
| UC WFA201 | ANDGE | Custom & Special Bearings | 102 | 78 | — |
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.