| Distance to lubrication hole | Ca | 40 | mm |
| Minimum rib diameter outer ring | D1 min | 292.30 | mm |
| Minimum chamfer dimension | rmin | 2.10 | mm |
| Minimum shaft shoulder | dc min | 270.50 | mm |
| Maximum rib diameter inner ring | d1 | 270.60 | mm |
| Maximum diameter of housing shoulder | Da max | 292.50 | mm |
| Maximum recess radius | ra max | 2.10 | mm |
| Minimum diameter shaft shoulder | da min | 270.60 | mm |
| Reference speed | nϑr | 660 | 1/min |
| Fatigue load limit, radial | Cur | 198,000 | |
| Basic dynamic load rating, radial | Cr | 740,000 | |
| Outside diameter | D | 320 | mm |
| Limiting speed | nG | 1,110 | |
| Basic static load rating, radial | C0r | 1,700,000 | |
| Width | B | 80 | mm |
| Bore diameter | d | 240 | mm |
| Manufacturer | Part Number |
|---|---|
| KOYO | DC4948AVW |
| NTN | SL01-4948 (NTN) |
| SKF | NNC4948V |
