SKF NF18/500ECM single-row cylindrical roller bearing (nu / n / nj / nup). Single-row cylindrical roller bearing. Design executions NU / N / NJ / NUP set the axial-guidance capability by rib configuration on inner and outer ring. Standard cage ECP (glass-fibre-reinforced polyamide 6.6) for bores up to 100 mm; ECM (machined brass) above. Precision to ISO 492 Class Normal / P6 / P5. Very heavy radial-load capacity at moderate speed. Suitable for reduction-gear input shafts, marine deck-machinery drives, paper-mill dryer sections.
| Type | Single-row cylindrical roller bearing (NU / N / NJ / NUP) |
| Designation | SKF NF18/500ECM |
| Bore d | 500 mm |
| HS code | 8482.20 |
| Bore diameter | 500 mm |
| Outside diameter | 620 mm |
| Width | 56 mm |
| Basic dynamic load rating | 792 kN |
| Basic static load rating | 1660 kN |
| Reference speed | 950 r/min |
| Limiting speed | 950 r/min |
| Bearing part | Complete bearing |
| Axial displacement capability | In one direction |
| Number of rows | 1 |
| Locating feature, bearing outer ring | Without |
| Bore type | Cylindrical |
| Cage | Machined brass |
| Number of flanges, outer ring | 1 |
| Number of flanges, inner ring | 2 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Candidate for remanufacturing | Yes |
| Indicative carbon footprint for new product | 146 kg CO2e |
| Indicative carbon footprint for remanufactured product | 48.6 kg CO2e |
| Product net weight | 39.5 kg |
| eClass code | 23-05-09-01 |
| UNSPSC code | 31171505 |
| 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.