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| Parameter | SKFNU 12/500 MA500 × 920 × 185 mm | FAGNU12/500-M1A500 × 920 × 185 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | FAG |
| Designation | NU 12/500 MA | NU12/500-M1A |
| Product family | Cylindrical roller bearings | — |
| Detailed type | Single row cylindrical roller bearing, nu design | Cylindrical roller bearings |
| Series | — | NU12/500 |
| Bore diameterd | 500 mm | 500 mm |
| Outside diameterD | 920 mm | 920 mm |
| WidthB | 185 mm | 185 mm |
| Basic dynamic load ratingC | 5280 kN | 5700 kN |
| Basic static load ratingC0 | 8500 kN | 8600 kN |
| Fatigue load limitPu | 620 kN | 690 kN |
| Reference speednref | 670 r/min | 435 r/min |
| Limiting speednG | 950 r/min | 1000 r/min |
| Mass≈m | 585 kg | 573 kg |
| Precision class | — | PN — Normal (ISO 492:2023) |
| Internal clearance | CN | CN (Group N) — Normal internal clearance |
| Sealing | Without | — |
| Cage | Machined brass | M1A — Two Piece Brass Cage Lip guided |
| Lubricant | None | — |
| Minimum operating temperatureTmin | — | -30 °C |
| Maximum operating temperatureTmax | — | 150 °C |
| Capabilities & suitability | ||
| Radial load capacity | — | Yes |
| Suitable for grease lubrication | — | Yes |
| Suitable for oil lubrication | — | Yes |
| Unsealed design | — | Yes |
| Largebearing | — | Yes |
| Dimensions | ||
| Minimum chamfer dimensionrmin | — | 7.5 mm |
| Minimum chamfer dimensionrmin | — | 0.295 in |
| Minimum chamfer dimensionr1 min | — | 7.5 mm |
| Minimum chamfer dimensionr1 min | — | 0.295 in |
| Axial displacements | — | 16 mm |
| Axial displacements | — | 0.63 in |
| Raceway diameter outer ringE | — | 839 mm |
| Raceway diameter outer ringE | — | 33.031 in |
| Raceway diameter inner ringF | — | 589 mm |
| Raceway diameter inner ringF | — | 23.189 in |
| Minimum rib diameter outer ringD1 min | — | 799 mm |
| Minimum rib diameter outer ringD1 min | — | 31.457 in |
| Engineering — Abutment dimensions | ||
| Diameter of spacer sleeved a | max. 593 mm | — |
| Diameter of shaft abutmentd b | min. 610 mm | — |
| Diameter of housing abutmentD a | max. 888 mm | — |
| Radius of filletr a | max. 6 mm | — |
| Engineering — Calculation data | ||
| Minimum load factork r | 0.17 | — |
| Limiting valuee | 0.3 | — |
| Calculation factorY | 0 | — |
| Engineering — Dimensions | ||
| Shoulder diameter of outer ringD 1 | ≈ 780 mm | — |
| Raceway diameter of inner ringF | 603.1 mm | — |
| Chamfer dimensionr 1,2 | min. 7.5 mm | — |
| Permissible axial displacements | max. 13.9 mm | — |
| Logistics | ||
| Product net weight | 585.0 kg | — |
| eClass code | 23-05-09-01 | — |
| UNSPSC code | 31171505 | — |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | — | 5,700,000 N |
| Basic dynamic load rating, radialCr | — | 1,281,474.82 lbf |
| Basic static load rating, radialC0r | — | 8,600,000 N |
| Basic static load rating, radialC0r | — | 1,933,453.237 lbf |
| Fatigue load limit, radialCur | — | 690,000 N |
| Fatigue load limit, radialCur | — | 155,125.899 lbf |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 369834 |
| Base Type | — | NU12/500 |
| Gpsd Group | — | F01 |
| Product Line Id | — | 75 |
| SAP material number | — | 0192367510000 |
| Base product | — | 2305090102 |
| Mounting dimensions | ||
| Minimum diameter shaft shoulderda min | — | 532 mm |
| Minimum diameter shaft shoulderda min | — | 20.945 in |
| Maximum diameter of shaft shoulderda max | — | 584 mm |
| Maximum diameter of shaft shoulderda max | — | 22.992 in |
| Minimum shaft shoulderdb min | — | 638 mm |
| Minimum shaft shoulderdb min | — | 25.118 in |
| Maximum diameter of housing shoulderDa max | — | 888 mm |
| Maximum diameter of housing shoulderDa max | — | 34.961 in |
| Maximum recess radiusra max | — | 6 mm |
| Maximum recess radiusra max | — | 0.236 in |
| Maximum recess radiusra1 max | — | 6 mm |
| Maximum recess radiusra1 max | — | 0.236 in |
| 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 | ||
| 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 NU..-M1A, with cage, single row, non-locating bearing, 2 ribs on outer ring, 0 ribs on inner ring (smooth), type NU, Running accuracy in P6 |
| Short Description | — | Cylindrical roller bearing |
| Properties | ||
| Bearing part | Complete bearing | — |
| Axial displacement capability | In both directions | — |
| Number of rows | 1 | — |
| Locating feature, bearing outer ring | Without | — |
| Bore type | Cylindrical | — |
| Number of flanges, outer ring | 2 | — |
| Number of flanges, inner ring | 0 | — |
| 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 | 2164.0 kg CO 2 e | — |
| Indicative carbon footprint for remanufactured product | 719.0 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 500 mm |
| Outside Diamater (D) | — | 920 mm |
| Total Width (B) | — | 185 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 5,700,000 N |
| Basic Static Load Rating, Radial (C0R) | — | 8,600,000 N |
| Raceway Diameter Inner Ring (F) | — | 589 mm |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Minimum Diameter Shaft Shoulder (Da) | — | 532 mm |
| Operating Temperature Max. (Tmax) | — | 150 °C |
| Limiting Speed (Limiting Spe) | — | 1,000 1/min |
| Reference Speed (Nϑr) | — | 435 1/min |
| Maximum Recess Radius (Ra Max) | — | 6 mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 888 mm |
| Minimum Chamfer Dimension (R1 Min) | — | 7.5 mm |
| Axial Displacement (S) | — | 16 mm |
| Minimum Rib Diameter Outer Ring (D1 Min) | — | 799 mm |
| Maximum Diameter Of Shaft Shoulder (Da Max) | — | 584 mm |
| Maximum Recess Radius (Ra1 Max) | — | 6 mm |
| Minimum Chamfer Dimension (Rmin) | — | 7.5 mm |
| Raceway Diameter Outer Ring (E) | — | 839 mm |
| Minimum Shaft Shoulder (Db Min) | — | 638 mm |
| Fatigue Load Limit, Radial (Cur) | — | 690,000 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.