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| Parameter | SKFQJ 326 N2MA130 × 280 × 58 mm | FAGQJ326-N2-MPA130 × 280 × 58 mm | NSKQJ326130 × 280 × 58 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | NSK |
| Designation | QJ 326 N2MA | QJ326-N2-MPA | QJ326 |
| Product family | Angular contact ball bearings | — | Four point contact ball bearing |
| Detailed type | Four-point contact ball bearing with locating slots | Four-point contact bearing | Four point contact ball bearing |
| Series | — | QJ326 | — |
| Bore diameterd | 130 mm | 130 mm | 130 mm |
| Outside diameterD | 280 mm | 280 mm | 280 mm |
| WidthB | 58 mm | 58 mm | 58 mm |
| Basic dynamic load ratingC | 455 kN | 425 kN | — |
| Basic static load ratingC0 | 610 kN | 570 kN | — |
| Fatigue load limitPu | 18 kN | 22.2 kN | — |
| Reference speednref | — | 2220 r/min | — |
| Limiting speednG | 4000 r/min | 4200 r/min | — |
| Mass≈m | 18.4 kg | 19.2 kg | 19 kg |
| Precision class | — | PN — Normal (ISO 492:2023) | — |
| Sealing | Without | — | — |
| Cage | Machined brass | MPA — Solid brass cage, outer ring guided | Machined brass |
| Bearing material | Bearing steel | — | — |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 200 °C | — |
| Axial load ratings | |||
| Basic dynamic axial load ratingCa | — | — | 440000 N |
| Basic static axial load ratingC0a | — | — | 970000 N |
| Boundary dimensions | |||
| Individual bearing widthB | — | — | 58 mm |
| Minimum bearing chamferr min. | — | — | 4 mm |
| Capabilities & suitability | |||
| Radial load capacity | — | Yes | — |
| Axial load capacity in one direction | — | Yes | — |
| Axial load capacity in both directions | — | Yes | — |
| Suitable for grease lubrication | — | Yes | — |
| Suitable for oil lubrication | — | Yes | — |
| Unsealed design | — | Yes | — |
| Construction | |||
| Nominal contact angleα | — | — | 35 ° |
| Cage material and construction | — | — | Machined brass |
| Construction / arrangement | — | — | Four-point contact bearing, split inner ring |
| Dimensions | |||
| Contact angle | 35.0 ° | — | — |
| Minimum chamfer dimensionrmin | — | 4 mm | — |
| Minimum chamfer dimensionrmin | — | 0.157 in | — |
| Shoulder diameter outer ringD1 | — | 228 mm | — |
| Shoulder diameter outer ringD1 | — | 8.976 in | — |
| Shoulder diameter inner ringd1 | — | 184.12 mm | — |
| Shoulder diameter inner ringd1 | — | 7.249 in | — |
| Distance between the apexes of the pressure conesa | — | 143.5 mm | — |
| Distance between the apexes of the pressure conesa | — | 5.65 in | — |
| Hight retaining slotan | — | 12.7 mm | — |
| Hight retaining slotan | — | 0.5 in | — |
| Width retaining slotbn | — | 10.5 mm | — |
| Width retaining slotbn | — | 0.413 in | — |
| Radius retaining slotrn | — | 2 mm | — |
| Radius retaining slotrn | — | 0.079 in | — |
| Angle retaining slot | — | 45 ° | — |
| Contact angleα | — | 35 ° | — |
| Engineering — Abutment dimensions | |||
| Abutment diameter shaftd a | min. 147 mm | — | — |
| Abutment diameter housingD a | max. 263 mm | — | — |
| Fillet radiusr a | max. 3 mm | — | — |
| Engineering — Calculation data | |||
| SKF performance class | SKF Explorer | — | — |
| Calculation factorA | 1.1 | — | — |
| Limiting valuee | 0.95 | — | — |
| Calculation factorX | 0.6 | — | — |
| Calculation factorY 0 | 0.58 | — | — |
| Calculation factorY 1 | 0.66 | — | — |
| Calculation factorY 2 | 1.1 | — | — |
| Engineering — Dimensions | |||
| Shoulder diameter inner ringd 1 | ≈ 182 mm | — | — |
| Shoulder diameter outer ring/ inner diameter housing washerD 1 | ≈ 227 mm | — | — |
| Distance pressure point(s)a | 144 mm | — | — |
| Locating slot depth outer ringh | 12.7 mm | — | — |
| Locating slot width outer ringb | 10.5 mm | — | — |
| Corner radius locating slotr 0 | 2 mm | — | — |
| Chamfer dimension inner ringr 1,2 | min. 4 mm | — | — |
| Load-centre geometry | |||
| Load-centre spacinga0 | — | — | 143.5 mm |
| Logistics | |||
| Product net weight | 18.4 kg | — | — |
| eClass code | 23-05-08-05 | — | — |
| UNSPSC code | 31171538 | — | — |
| Lubrication-qualified speed | |||
| Limiting speed — grease | — | — | 1900 r/min |
| Limiting speed — oil | — | — | 2600 r/min |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | — | 425,000 N | — |
| Basic dynamic load rating, radialCr | — | 95,548.561 lbf | — |
| Basic static load rating, radialC0r | — | 570,000 N | — |
| Basic static load rating, radialC0r | — | 128,147.482 lbf | — |
| Fatigue load limit, radialCur | — | 22,200 N | — |
| Fatigue load limit, radialCur | — | 4,991.007 lbf | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 366757 | — |
| Base Type | — | QJ326 | — |
| Old Designation | — | ["QJ326N2MPA"] | — |
| Gpsd Group | — | S03 | — |
| Product Line Id | — | 14 | — |
| SAP material number | — | 0192625070000 | — |
| Base product | — | 230508AD41 | — |
| Bearing X designation | — | QJ326-N2-MPA | — |
| Mounting Manager ID | — | QJ326-N2-MPA | — |
| Grease application ID | — | QJ326-N2-MPA | — |
| Mass reference | |||
| Approximate mass | — | — | 19 kg |
| Mounting dimensions | |||
| Minimum diameter shaft shoulderda min | — | 147 mm | — |
| Minimum diameter shaft shoulderda min | — | 5.787 in | — |
| Maximum diameter of housing shoulderDa max | — | 263 mm | — |
| Maximum diameter of housing shoulderDa max | — | 10.354 in | — |
| Maximum fillet radiusra max | — | 3 mm | — |
| Maximum fillet radiusra max | — | 0.118 in | — |
| Mounting dimensions — shown arrangement | |||
| Minimum shaft shoulder diameterda min. | — | — | 148 mm |
| Maximum housing shoulder diameterDa max. | — | — | 262 mm |
| Maximum adjacent fillet radiusra max. | — | — | 3 mm |
| Product characteristics | |||
| Design, bearing outer ringN2 | — | Two retaining grooves in the outer ring on one side | — |
| Tolerance classPN | — | Normal (ISO 492:2023) | — |
| Dimensional / heat stabilizationS1 | — | Rings dimensional stabilized up to 200° | — |
| Axial internal clearanceT42A | — | Special axial clearance T42A, smaller than T42B | — |
| Product identity | |||
| Official product category | Angular contact ball bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/angular-contact-ball-bearings/four-point-contact-ball-bearings | — | — |
| Structure group ID | BAQ_001 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Construction | — | Four point contact bearing QJ3..-N2-MPA, holding grooves, solid brass cage | — |
| Short Description | — | Four-point contact bearing | — |
| Properties | |||
| Contact type | Four-point contact | — | — |
| Number of rows | 1 | — | — |
| Locating feature, bearing outer ring | Locating slot | — | — |
| Ring type | Two-piece inner ring and one-piece outer ring | — | — |
| Matched arrangement | No | — | — |
| Universal matching bearing | No | — | — |
| Axial internal clearance | CN | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Indicative carbon footprint for new product | 67.9 kg CO 2 e | — | — |
| Technical Data | |||
| Bore Diameter (D) | — | 130 mm | — |
| Outside Diameter (D) | — | 280 mm | — |
| Width (B) | — | 58 mm | — |
| Basic Dynamic Load Rating, Radial (Cr) | — | 425,000 N | — |
| Basic Static Load Rating, Radial (C0R) | — | 570,000 N | — |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Limiting Speed (Ng) | — | 4,200 1/min | — |
| Operating Temperature Max. (Tmax) | — | 200 °C | — |
| Reference Speed (Nϑr) | — | 2,220 1/min | — |
| Angle Retaining Slot (Angle Retain) | — | 45 ° | — |
| Hight Retaining Slot (An) | — | 12.7 mm | — |
| Radius Retaining Slot (Rn) | — | 2 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 22,200 N | — |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 147 mm | — |
| Shoulder Diameter Inner Ring (D1) | — | 184.12 mm | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 263 mm | — |
| Minimum Chamfer Dimension (Rmin) | — | 4 mm | — |
| Maximum Fillet Radius (Ra Max) | — | 3 mm | — |
| Shoulder Diameter Outer Ring (D1) | — | 228 mm | — |
| Contact Angle (Α) | — | 35 ° | — |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 143.5 mm | — |
| Width Retaining Slot (Bn) | — | 10.5 mm | — |
| Temperature range | |||
| Operating temperature min.Tmin | — | -30 °C | — |
| Operating temperature min.Tmin | — | -22 °F | — |
| Operating temperature max.Tmax | — | 200 °C | — |
| Operating temperature max.Tmax | — | 392 °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.