25 models with a 12 mm bore in this type, with outer diameter and width. Outer diameters on this page run from 24 mm to 37 mm.
| Model | Brand | Type | OD D (mm) | Width B (mm) | |
|---|---|---|---|---|---|
| NAG 4901UU | IKO | Cylindrical Roller Bearings | 24 | 13 | — |
| NAU 4901 | IKO | Cylindrical Roller Bearings | 24 | 13 | — |
| RNAST 8 | IKO | Cylindrical Roller Bearings | 24 | 9.8 | — |
| RNAST 8R | IKO | Cylindrical Roller Bearings | 24 | 9.8 | — |
| AS 1226 | SKF | Cylindrical Roller Bearings | 26 | 1 | Cross-ref → |
| LS 1226 | SKF | Cylindrical Roller Bearings | 26 | 2.75 | — |
| Series LS 1226 | SKF | Cylindrical Roller Bearings | 26 | 2.75 | — |
| NUCF 12 BR | IKO | Cylindrical Roller Bearings | 30 | 15.2 | — |
| NUCF 12R | IKO | Cylindrical Roller Bearings | 30 | 15.2 | — |
| 1201 | NACHI | Cylindrical Roller Bearings | 32 | 10 | Cross-ref → |
| 2201 | NACHI | Cylindrical Roller Bearings | 32 | 14 | Cross-ref → |
| NART 12R | IKO | Cylindrical Roller Bearings | 32 | 15 | — |
| NART 12UUR | IKO | Cylindrical Roller Bearings | 32 | 15 | — |
| NART 12VR | IKO | Cylindrical Roller Bearings | 32 | 15 | — |
| NART 12VUUR | IKO | Cylindrical Roller Bearings | 32 | 15 | — |
| NAST 12 | IKO | Cylindrical Roller Bearings | 32 | 12 | — |
| NAST 12R | IKO | Cylindrical Roller Bearings | 32 | 12 | — |
| NAST 12ZZ | IKO | Cylindrical Roller Bearings | 32 | 16 | — |
| NAST 12ZZR | IKO | Cylindrical Roller Bearings | 32 | 16 | — |
| NAST 12ZZUU | IKO | Cylindrical Roller Bearings | 32 | 16 | — |
| NAST 12ZZUUR | IKO | Cylindrical Roller Bearings | 32 | 16 | — |
| NUCF 12-1 BR | IKO | Cylindrical Roller Bearings | 32 | 15.2 | — |
| NUCF 12-1R | IKO | Cylindrical Roller Bearings | 32 | 15.2 | — |
| 1301 | NACHI | Cylindrical Roller Bearings | 37 | 12 | Cross-ref → |
| 2301 | NACHI | Cylindrical Roller Bearings | 37 | 17 | Cross-ref → |
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.