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| Parameter | SKFNJ 252 MA260 × 480 × 80 mm | FAGNJ252-E-TB-M1260 × 480 × 80 mm | NSKNJ252M260 × 480 × 80 mm | KOYONJ252260 × 480 × 80 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | FAG | NSK | KOYO |
| Designation | NJ 252 MA | NJ252-E-TB-M1 | NJ252M | NJ252 |
| Product family | Cylindrical roller bearings | — | Cylindrical roller bearing | Single-row / NJ |
| Detailed type | Single row cylindrical roller bearing, nj design | Cylindrical roller bearings | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | — | NJ252 | — | — |
| Bore diameterd | 260 mm | 260 mm | 260 mm | 260 mm |
| Outside diameterD | 480 mm | 480 mm | 480 mm | 480 mm |
| WidthB | 80 mm | 80 mm | 80 mm | 80 mm |
| Basic dynamic load ratingC | 1170 kN | 1350 kN | 1360 kN | 1380 kN |
| Basic static load ratingC0 | 1700 kN | 1890 kN | 1580 kN | 1580 kN |
| Fatigue load limitPu | — | 195 kN | — | 171 kN |
| Reference speednref | 1400 r/min | 1110 r/min | — | — |
| Limiting speednG | 2000 r/min | 2100 r/min | — | 1100 r/min |
| Mass≈m | 69 kg | 68.2 kg | — | 71 kg |
| Precision class | — | PN — Normal (ISO 492:2023) | — | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — | — |
| Sealing | Without | — | — | — |
| Cage | Machined brass | M1 — Two Piece Brass Cage Roller Guided | Machined brass | — |
| Lubricant | None | — | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — |
| Maximum operating temperatureTmax | — | 150 °C | — | — |
| Additional information | ||||
| L-washer | — | HJ252-E | — | — |
| Boundary dimensions | ||||
| Bearing widthB | — | — | 80 mm | — |
| Minimum bearing chamferr min. | — | — | 5 mm | — |
| Minimum secondary bearing chamferr1 min. | — | — | 5 mm | — |
| Roller inscribed circle diameterFw | — | — | 320 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 | — | — |
| Largebearing | — | Yes | — | — |
| Catalogue reference mass | ||||
| Approximate shared-row mass — not separately stated for each rib arrangement | — | — | 67.1 kg | — |
| Classification | ||||
| Official Category Path | — | — | — | Cylindrical roller bearings - Single-row - NJ |
| Official Classification 1 | — | — | — | Cylindrical roller bearings / Single-row / NJ |
| 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 | — |
| 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 | — | 5 mm | — | — |
| Minimum chamfer dimensionrmin | — | 0.197 in | — | — |
| Minimum chamfer dimensionr1 min | — | 5 mm | — | — |
| Minimum chamfer dimensionr1 min | — | 0.197 in | — | — |
| Axial displacements | — | 6.2 mm | — | — |
| Axial displacements | — | 0.244 in | — | — |
| Raceway diameter outer ringE | — | 429 mm | — | — |
| Raceway diameter outer ringE | — | 16.89 in | — | — |
| Raceway diameter inner ringF | — | 317 mm | — | — |
| Raceway diameter inner ringF | — | 12.48 in | — | — |
| Minimum rib diameter outer ringD1 min | — | 406.6 mm | — | — |
| Minimum rib diameter outer ringD1 min | — | 16.008 in | — | — |
| Maximum rib diameter inner ringd1 | — | 339.7 mm | — | — |
| Maximum rib diameter inner ringd1 | — | 13.374 in | — | — |
| Load ratings — standard cage | ||||
| Basic dynamic radial load ratingCr | — | — | 1360000 N | — |
| Basic static radial load ratingC0r | — | — | 1580000 N | — |
| Logistics | ||||
| Product net weight | 69.0 kg | — | — | — |
| eClass code | 23-05-09-01 | — | — | — |
| UNSPSC code | 31171505 | — | — | — |
| Lubrication-qualified speed — standard cage | ||||
| Thermal speed rating — oil bath | — | — | 1500 r/min | — |
| Mechanical limiting speed — forced oil circulation | — | — | Not stated in this catalogue row | — |
| Limiting speed — grease | — | — | 1200 r/min | — |
| Limiting speed — oil bath | — | — | 1500 r/min | — |
| Main Dimensions & Performance Data | ||||
| Basic dynamic load rating, radialCr | — | 1,350,000 N | — | — |
| Basic dynamic load rating, radialCr | — | 303,507.194 lbf | — | — |
| Basic static load rating, radialC0r | — | 1,890,000 N | — | — |
| Basic static load rating, radialC0r | — | 424,910.072 lbf | — | — |
| Fatigue load limit, radialCur | — | 195,000 N | — | — |
| Fatigue load limit, radialCur | — | 43,839.928 lbf | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | — | 372850 | — | — |
| Official Class Key | — | — | — | 040-010-000 |
| Base Type | — | NJ252 | — | — |
| Gpsd Group | — | F01 | — | — |
| Product Line Id | — | 75 | — | — |
| SAP material number | — | 0792370370000 | — | — |
| Base product | — | 2305090111 | — | — |
| Bearing X designation | — | NJ252-E-TB-M1 | — | — |
| Mounting Manager ID | — | NJ252-E-TB-M1 | — | — |
| Grease application ID | — | NJ252-E-TB-M1 | — | — |
| Mounting dimensions | ||||
| Minimum diameter shaft shoulderda min | — | 280 mm | — | — |
| Minimum diameter shaft shoulderda min | — | 11.024 in | — | — |
| Maximum diameter of shaft shoulderda max | — | 314 mm | — | — |
| Maximum diameter of shaft shoulderda max | — | 12.362 in | — | — |
| Maximum diameter of housing shoulderDa max | — | 460 mm | — | — |
| Maximum diameter of housing shoulderDa max | — | 18.11 in | — | — |
| Minimum shaft shoulderdc min | — | 341 mm | — | — |
| Minimum shaft shoulderdc min | — | 13.425 in | — | — |
| Maximum recess radiusra max | — | 4 mm | — | — |
| Maximum recess radiusra max | — | 0.157 in | — | — |
| Mounting dimensions — shown arrangement | ||||
| Minimum shaft shoulder diameterdb min. | — | — | 280 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | 460 mm | — |
| Maximum adjusting-ring diameter (NU/NJ arrangement)db max. | — | — | 314 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | 4 mm | — |
| Maximum secondary adjacent fillet radiusrb max. | — | — | 4 mm | — |
| Product characteristics | ||||
| DesignTB | — | Bearings with increased axial load capacity | — | — |
| Radial internal clearanceCN (Group N) | — | Normal internal clearance | — | — |
| Tolerance classPN | — | Normal (ISO 492:2023) | — | — |
| Number of rows1 | — | Single-row design | — | — |
| 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 | Yes | — | — | — |
| Product Identity | ||||
| Construction | — | Cylindrical roller bearing NJ..-E-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 | — | — |
| 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 | — | — | — |
| Candidate for remanufacturing | Yes | — | — | — |
| Indicative carbon footprint for new product | 255.0 kg CO 2 e | — | — | — |
| Indicative carbon footprint for remanufactured product | 84.9 kg CO 2 e | — | — | — |
| Technical Data | ||||
| d | — | — | — | 480 mm |
| B | — | — | — | 80 mm |
| Bore Diameter (D) | — | 260 mm | — | — |
| R(Min.) | — | — | — | 5 mm |
| Outside Diamater (D) | — | 480 mm | — | — |
| R1(Min.) | — | — | — | 5 mm |
| Total Width (B) | — | 80 mm | — | — |
| Fw | — | — | — | 320 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 1,350,000 N | — | — |
| Ew | — | — | — | - mm |
| Basic Static Load Rating, Radial (C0R) | — | 1,890,000 N | — | — |
| Basic Load Ratings : Cr | — | — | — | 1380 kN |
| Raceway Diameter Inner Ring (F) | — | 317 mm | — | — |
| Basic Load Ratings : C0R | — | — | — | 1580 kN |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — |
| Fatigue Load Limit : Cu | — | — | — | 171 kN |
| Minimum Diameter Shaft Shoulder (Da) | — | 280 mm | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | 1100 min-1 |
| Operating Temperature Max. (Tmax) | — | 150 °C | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | 1300 min-1 |
| Limiting Speed (Limiting Spe) | — | 2,100 1/min | — | — |
| Sd1 | — | — | — | - mm |
| Minimum Shaft Shoulder (Dc Min) | — | 341 mm | — | — |
| B1 | — | — | — | - mm |
| Reference Speed (Nϑr) | — | 1,110 1/min | — | — |
| B2 | — | — | — | - mm |
| Maximum Recess Radius (Ra Max) | — | 4 mm | — | — |
| Da(Min.) | — | — | — | - mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 460 mm | — | — |
| Db(Min.) | — | — | — | - mm |
| Maximum Rib Diameter Inner Ring (D1) | — | 339.7 mm | — | — |
| Db(Max.) | — | — | — | - mm |
| Minimum Chamfer Dimension (R1 Min) | — | 5 mm | — | — |
| Dc(Min.) | — | — | — | - mm |
| Axial Displacement (S) | — | 6.2 mm | — | — |
| Dd(Min.) | — | — | — | - mm |
| Minimum Rib Diameter Outer Ring (D1 Min) | — | 406.6 mm | — | — |
| Da(Max.) | — | — | — | 460 mm |
| Maximum Diameter Of Shaft Shoulder (Da Max) | — | 314 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 5 mm | — | — |
| Raceway Diameter Outer Ring (E) | — | 429 mm | — | — |
| Ra(Max.) | — | — | — | 4 mm |
| Fatigue Load Limit, Radial (Cur) | — | 195,000 N | — | — |
| Rb(Max.) | — | — | — | 4 mm |
| Mass(Refer.) | — | — | — | 71.0 kg |
| 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.