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| Parameter | FAGNJ1048-M1240 × 360 × 56 mm | NSKNJ1048240 × 360 × 56 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | NSK |
| Designation | NJ1048-M1 | NJ1048 |
| Product family | — | Cylindrical roller bearing |
| Detailed type | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | NJ1048 | — |
| Bore diameterd | 240 mm | 240 mm |
| Outside diameterD | 360 mm | 360 mm |
| WidthB | 56 mm | 56 mm |
| Basic dynamic load ratingC | 540 kN | 650 kN |
| Basic static load ratingC0 | 840 kN | 820 kN |
| Fatigue load limitPu | 95 kN | — |
| Reference speednref | 1850 r/min | — |
| Limiting speednG | 3000 r/min | — |
| Mass≈m | 20.3 kg | — |
| Precision class | PN — Normal (ISO 492:2023) | — |
| Internal clearance | CN (Group N) — Normal internal clearance | — |
| Cage | M1 — Two Piece Brass Cage Roller Guided | Machined brass |
| Minimum operating temperatureTmin | -30 °C | — |
| Maximum operating temperatureTmax | 150 °C | — |
| Boundary dimensions | ||
| Bearing widthB | — | 56 mm |
| Minimum bearing chamferr min. | — | 3 mm |
| Minimum secondary bearing chamferr1 min. | — | 3 mm |
| Roller inscribed circle diameterFw | — | 270 mm |
| Capabilities & suitability | ||
| Radial load capacity | Yes | — |
| Axial load capacity in one direction | Yes | — |
| Suitable for grease lubrication | Yes | — |
| Suitable for oil lubrication | Yes | — |
| Unsealed design | Yes | — |
| Catalogue reference mass | ||
| Approximate shared-row mass — not separately stated for each rib arrangement | — | 19.5 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 |
| Dimensions | ||
| Minimum chamfer dimensionrmin | 3 mm | — |
| Minimum chamfer dimensionrmin | 0.118 in | — |
| Minimum chamfer dimensionr1 min | 3 mm | — |
| Minimum chamfer dimensionr1 min | 0.118 in | — |
| Axial displacements | 6.4 mm | — |
| Axial displacements | 0.252 in | — |
| Raceway diameter outer ringE | 330 mm | — |
| Raceway diameter outer ringE | 12.992 in | — |
| Raceway diameter inner ringF | 270 mm | — |
| Raceway diameter inner ringF | 10.63 in | — |
| Minimum rib diameter outer ringD1 min | 318.9 mm | — |
| Minimum rib diameter outer ringD1 min | 12.555 in | — |
| Maximum rib diameter inner ringd1 | 281.6 mm | — |
| Maximum rib diameter inner ringd1 | 11.087 in | — |
| Load ratings — standard cage | ||
| Basic dynamic radial load ratingCr | — | 650000 N |
| Basic static radial load ratingC0r | — | 820000 N |
| Lubrication-qualified speed — standard cage | ||
| Thermal speed rating — oil bath | — | 2200 r/min |
| Mechanical limiting speed — forced oil circulation | — | Not stated in this catalogue row |
| Limiting speed — grease | — | 1600 r/min |
| Limiting speed — oil bath | — | 2000 r/min |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | 540,000 N | — |
| Basic dynamic load rating, radialCr | 121,402.878 lbf | — |
| Basic static load rating, radialC0r | 840,000 N | — |
| Basic static load rating, radialC0r | 188,848.921 lbf | — |
| Fatigue load limit, radialCur | 95,000 N | — |
| Fatigue load limit, radialCur | 21,357.914 lbf | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 372131 | — |
| Base Type | NJ1048 | — |
| Gpsd Group | F01 | — |
| Product Line Id | 75 | — |
| SAP material number | 0390479620000 | — |
| Base product | 2305090111 | — |
| Mounting dimensions | ||
| Minimum diameter shaft shoulderda min | 252 mm | — |
| Minimum diameter shaft shoulderda min | 9.921 in | — |
| Maximum diameter of shaft shoulderda max | 268 mm | — |
| Maximum diameter of shaft shoulderda max | 10.551 in | — |
| Maximum diameter of housing shoulderDa max | 348 mm | — |
| Maximum diameter of housing shoulderDa max | 13.701 in | — |
| Minimum shaft shoulderdc min | 285 mm | — |
| Minimum shaft shoulderdc min | 11.22 in | — |
| Maximum recess radiusra max | 2.5 mm | — |
| Maximum recess radiusra max | 0.098 in | — |
| Mounting dimensions — shown arrangement | ||
| Minimum shaft shoulder diameterdb min. | — | 253 mm |
| Maximum housing shoulder diameterDa max. | — | 347 mm |
| Maximum adjusting-ring diameter (NU/NJ arrangement)db max. | — | 266 mm |
| Maximum adjacent fillet radiusra max. | — | 2.5 mm |
| Maximum secondary adjacent fillet radiusrb max. | — | 2.5 mm |
| Product characteristics | ||
| Design | Standard | — |
| Radial internal clearanceCN (Group N) | Normal internal clearance | — |
| Tolerance classPN | Normal (ISO 492:2023) | — |
| Number of rows1 | Single-row design | — |
| Product Identity | ||
| Construction | Cylindrical roller bearing NJ..-M1, with cage, single row, semi-locating bearing, 2 ribs on outer ring, 1 rib on inner ring, type NJ | — |
| Short Description | Cylindrical roller bearing | — |
| Technical Data | ||
| Bore Diameter (D) | 240 mm | — |
| Outside Diamater (D) | 360 mm | — |
| Total Width (B) | 56 mm | — |
| Basic Dynamic Load Rating, Radial (Cr) | 540,000 N | — |
| Basic Static Load Rating, Radial (C0R) | 840,000 N | — |
| Raceway Diameter Inner Ring (F) | 270 mm | — |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Minimum Diameter Shaft Shoulder (Da) | 252 mm | — |
| Operating Temperature Max. (Tmax) | 150 °C | — |
| Limiting Speed (Limiting Spe) | 3,000 1/min | — |
| Minimum Shaft Shoulder (Dc Min) | 285 mm | — |
| Reference Speed (Nϑr) | 1,850 1/min | — |
| Maximum Recess Radius (Ra Max) | 2.5 mm | — |
| Maximum Diameter Of Housing Shoulder (Da) | 348 mm | — |
| Maximum Rib Diameter Inner Ring (D1) | 281.6 mm | — |
| Minimum Chamfer Dimension (R1 Min) | 3 mm | — |
| Axial Displacement (S) | 6.4 mm | — |
| Minimum Rib Diameter Outer Ring (D1 Min) | 318.9 mm | — |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 268 mm | — |
| Minimum Chamfer Dimension (Rmin) | 3 mm | — |
| Raceway Diameter Outer Ring (E) | 330 mm | — |
| Fatigue Load Limit, Radial (Cur) | 95,000 N | — |
| Temperature range | ||
| Operating temperature min.Tmin | -30 °C | — |
| Operating temperature min.Tmin | -22 °F | — |
| Operating temperature max.Tmax | 150 °C | — |
| Operating temperature max.Tmax | 302 °F | — |
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.