SKF HM259048/010/HA4 single-row tapered roller bearing. Single-row tapered roller bearing designed to take combined heavy radial and one-direction axial load. Cone (inner ring), cup (outer ring) and rollers converge at a common apex on the bearing axis. Two bearings are always mounted in opposition. Metric dimensions per ISO 355; imperial to ANSI/ABMA 19.1.
| Type | Single-row tapered roller bearing |
| Designation | SKF HM259048/010/HA4 |
| HS code | 8482.20 |
| Bore diameter | 317.5 mm |
| Outside diameter | 447.675 mm |
| Width, total | 85.725 mm |
| Width, inner ring | 85.725 mm |
| Width, outer ring | 68.262 mm |
| Contact angle | 12.6 ° |
| Basic dynamic load rating | 1363 kN |
| Basic static load rating | 2700 kN |
| Reference speed | 900 r/min |
| Limiting speed | 1200 r/min |
| Bearing part | Complete bearing |
| Number of rows | 1 |
| Locating feature, bearing outer ring | Without |
| Bore type | Cylindrical |
| Cage | Sheet metal |
| Arrangement of contact angle (double-row bearing) | Not applicable |
| Matched arrangement | No |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Unit system | Inch |
| Candidate for remanufacturing | Yes |
| Indicative carbon footprint for new product | 152 kg CO2e |
| Indicative carbon footprint for remanufactured product | 50.7 kg CO2e |
| Product net weight | 41.2 kg |
| eClass code | 23-05-09-10 |
| UNSPSC code | 31171516 |
| Material | As declared by SKF designation suffix |
| Temperature range | Per SKF product data |
| Primary standard | SKF designation convention |
| MOQ | 1 |
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.