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| Parameter | SKFNJ 1011 ECP55 × 90 × 18 mm | NSKNJ101155 × 90 × 18 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | NSK |
| Designation | NJ 1011 ECP | NJ1011 |
| Product family | Cylindrical roller bearings | Cylindrical roller bearing |
| Detailed type | Single row cylindrical roller bearing, nj design | Cylindrical roller bearings |
| Bore diameterd | 55 mm | 55 mm |
| Outside diameterD | 90 mm | 90 mm |
| WidthB | 18 mm | 18 mm |
| Basic dynamic load ratingC | 65.5 kN | 46.5 kN |
| Basic static load ratingC0 | 69.5 kN | 44 kN |
| Fatigue load limitPu | 8.3 kN | — |
| Reference speednref | 8500 r/min | — |
| Limiting speednG | 8500 r/min | — |
| Mass≈m | 0.416 kg | — |
| Internal clearance | CN | — |
| Sealing | Without | — |
| Cage | Non-metallic | Machined brass |
| Lubricant | None | — |
| Boundary dimensions | ||
| Bearing widthB | — | 18 mm |
| Minimum bearing chamferr min. | — | 1.1 mm |
| Minimum secondary bearing chamferr1 min. | — | 1 mm |
| Roller inscribed circle diameterFw | — | 64.5 mm |
| Catalogue reference mass | ||
| Approximate shared-row mass — not separately stated for each rib arrangement | — | 0.445 kg |
| Construction | ||
| Single-row construction type | — | NJ |
| Rib arrangement | — | Two outer-ring ribs; one inner-ring rib |
| Standard cage material | — | Machined brass |
| Standard cage marking | — | M is usually omitted for this series |
| Other cage codes listed for this catalogue row | — | None listed in this row |
| Precision — designation omission rule | — | ISO Normal when no precision suffix is specified |
| Clearance identification — verify interchangeability | — | No clearance suffix shown. CN omission applies to interchangeable designs; do not infer a numerical clearance. |
| Optimized crowning note | — | No optimized-crowning asterisk on this row |
| Engineering — Abutment dimensions | ||
| Diameter of spacer sleeved a | max. 63 mm | — |
| Diameter of shaft abutmentd b | min. 70 mm | — |
| Diameter of housing abutmentD a | max. 83 mm | — |
| Radius of filletr a | max. 2 mm | — |
| Engineering — Calculation data | ||
| SKF performance class | SKF Explorer | — |
| Minimum load factork r | 0.1 | — |
| Limiting valuee | 0.2 | — |
| Calculation factorY | 0.6 | — |
| Engineering — Dimensions | ||
| Shoulder diameter of inner ringd 1 | ≈ 68 mm | — |
| Shoulder diameter of outer ringD 1 | ≈ 79.19 mm | — |
| Raceway diameter of inner ringF | 64.5 mm | — |
| Chamfer dimensionr 1,2 | min. 1.1 mm | — |
| Chamfer dimensionr 3,4 | min. 1 mm | — |
| Permissible axial displacements | max. 0.5 mm | — |
| Load ratings — standard cage | ||
| Basic dynamic radial load ratingCr | — | 46500 N |
| Basic static radial load ratingC0r | — | 44000 N |
| Logistics | ||
| Product net weight | 0.416 kg | — |
| eClass code | 23-05-09-01 | — |
| UNSPSC code | 31171505 | — |
| Lubrication-qualified speed — standard cage | ||
| Thermal speed rating — oil bath | — | 8000 r/min |
| Mechanical limiting speed — forced oil circulation | — | Not stated in this catalogue row |
| Limiting speed — grease | — | 7500 r/min |
| Limiting speed — oil bath | — | 9000 r/min |
| Mounting dimensions — shown arrangement | ||
| Minimum shaft shoulder diameterdb min. | — | 60 mm |
| Maximum housing shoulder diameterDa max. | — | 83.5 mm |
| Maximum adjusting-ring diameter (NU/NJ arrangement)db max. | — | 63 mm |
| Maximum adjacent fillet radiusra max. | — | 1 mm |
| Maximum secondary adjacent fillet radiusrb max. | — | 1 mm |
| Product identity | ||
| Official product category | Cylindrical roller bearings | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/cylindrical-roller-bearings/single-row-cylindrical-roller-bearings | — |
| Structure group ID | BC1_001_101 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Properties | ||
| Bearing part | Complete bearing | — |
| Axial displacement capability | In one direction | — |
| Number of rows | 1 | — |
| Locating feature, bearing outer ring | Without | — |
| Bore type | Cylindrical | — |
| Number of flanges, outer ring | 2 | — |
| Number of flanges, inner ring | 1 | — |
| Loose flange | None | — |
| Radial internal clearance | CN | — |
| Tolerance class | Normal | — |
| Coating | Without | — |
| Relubrication feature | Without | — |
| Indicative carbon footprint for new product | 1.5 kg CO 2 e | — |
Independent reference comparison based on the manufacturer data currently loaded. Always verify current limits, tolerances and suffix definitions with the official source before engineering selection.