The main dimensions of the bearings conform to DIN 630. The dimensional and geometrical tolerances of the bearings correspond to tolerance class PN to DIN 620-2.
In FAG self aligning ball bearings series 112, the bearing bore has a J7 tolerance.
Radial internal clearance of bearings with cylindrical bore
The radial internal clearance is CN in accordance with DIN 620-4.
| Bore | Radial internal clearance | ||||
|---|---|---|---|---|---|
|
d mm |
CN μm |
C3 μm |
|||
| over | incl. | min. | max. | min. | max. |
| - | 6 | 5 | 15 | 10 | 20 |
| 6 | 10 | 6 | 17 | 12 | 25 |
| 10 | 14 | 6 | 19 | 13 | 26 |
| 14 | 18 | 8 | 21 | 15 | 28 |
| 18 | 24 | 10 | 23 | 17 | 30 |
| 24 | 30 | 11 | 24 | 19 | 35 |
| 30 | 40 | 13 | 29 | 23 | 40 |
| 40 | 50 | 14 | 31 | 25 | 44 |
| 50 | 65 | 16 | 36 | 30 | 50 |
| 65 | 80 | 18 | 40 | 35 | 60 |
| 80 | 100 | 22 | 48 | 42 | 70 |
| 100 | 120 | 25 | 56 | 50 | 83 |
| 120 | 140 | 30 | 68 | 60 | 100 |
| 140 | 160 | 35 | 80 | 70 | 120 |
Radial internal clearance of bearings with tapered bore
Bearings with a tapered bore have the internal clearance group C3 in accordance with DIN 620-4.
| Bore | Radial internal clearance | ||||
|---|---|---|---|---|---|
|
d mm |
CN μm |
C3 μm |
|||
| over | incl. | min. | max. | min. | max. |
| 18 | 24 | 13 | 26 | 20 | 33 |
| 24 | 30 | 15 | 28 | 23 | 39 |
| 30 | 40 | 19 | 35 | 29 | 46 |
| 40 | 50 | 22 | 39 | 33 | 52 |
| 50 | 65 | 27 | 47 | 41 | 61 |
| 65 | 80 | 35 | 57 | 50 | 75 |
| 80 | 100 | 42 | 68 | 62 | 90 |
| 100 | 120 | 50 | 81 | 75 | 108 |
| 120 | 140 | 60 | 98 | 90 | 130 |
| 140 | 160 | 65 | 110 | 100 | 150 |
