SKF radial spherical plain bearings are produced with Normal radial internal clearance as standard. Prior to ordering, check availability of bearings with a smaller (C2) or larger (C3) radial internal clearance than Normal.
Radial internal clearance for steel/steel and SKF Explorer steel/steel radial spherical plain bearings, metric sizes
| Bore diameter | Radial internal clearance | ||||||
| d | C2 | Normal | C3 | ||||
| over | incl. | min. | max. | min. | max. | min. | max. |
| mm | μm | μm | μm | ||||
| 2.5 | 12 | 8 | 32 | 32 | 68 | 68 | 104 |
| 12 | 20 | 10 | 40 | 40 | 82 | 82 | 124 |
| 20 | 35 | 12 | 50 | 50 | 100 | 100 | 150 |
| 35 | 60 | 15 | 60 | 60 | 120 | 120 | 180 |
| 60 | 90 | 18 | 72 | 72 | 142 | 142 | 212 |
| 90 | 140 | 18 | 85 | 85 | 165 | 165 | 245 |
| 140 | 200 | 18 | 100 | 100 | 192 | 192 | 284 |
| 200 | 240 | 18 | 110 | 110 | 214 | 214 | 318 |
| 240 | 300 | 18 | 125 | 125 | 239 | 239 | 353 |
Bearings in the GEH series, with a bore diameter d = 20, 35, 60 and 90 mm, have a radial internal clearance range corresponding to the next larger diameter range.
Radial internal clearance for steel/steel and SKF Explorer steel/steel radial spherical plain bearings, inch sizes
| Bore diameter | Radial internal clearance | ||||||
| d | C2 | Normal | C3 | ||||
| over | incl. | min. | max. | min. | max. | min. | max. |
| mm | μm | μm | μm | ||||
| 2,540 | 15,875 | 15 | 75 | 50 | 150 | 150 | 200 |
| 15,875 | 50,800 | 25 | 105 | 80 | 180 | 180 | 260 |
| 50,800 | 76,200 | 30 | 130 | 100 | 200 | 200 | 300 |
| 76,200 | 152,400 | 40 | 160 | 130 | 230 | 230 | 350 |
