| Internal design Suffixes |
| N.a. |
| External design Suffixes |
| N2 | Two locating slots (notches) in one outer ring side face, 180° apart |
| Cage design Suffixes |
| FA | Machined steel cage, outer ring centred |
| MA | Machined brass cage, outer ring centred. |
| PHAS | Glass fibre reinforced PEEK cage, with lubrication grooves in the guiding surface, outer ring centred |
| Materials, heat treatment Suffixes |
| N.a. |
| Accuracy, clearance, preload, quiet running Suffixes |
| P6 | Dimensional and geometrical tolerances to class P6 |
| P62 | P6 + C2 |
| P63 | P6 + C3 |
| P64 | P6 + C4 |
| P6CNL | P6 + CNL |
| CNL | Axial internal clearance in the lower half of the Normal range |
| C2 | Axial internal clearance smaller than Normal |
| C2H | Axial internal clearance in the upper half of the C2 range |
| C2L | Axial internal clearance in the lower half of the C2 range |
| C3 | Axial internal clearance greater than Normal |
| C4 | Axial internal clearance greater than C3 |
| 344524 | C2H + CNL |
| Bearing sets, matched bearings Suffixes |
| N.a. |
| Stabilization Suffixes |
| S1 | Bearing rings heat stabilized for operating temperatures ≤ 200 °C (390 °F) |
| Lubrication Suffixes |
| N.a. |
| Other variants Suffixes |
| 309829 | Larger balls |
suffix for Four-Point Contact Ball Bearings
