Cross-brand designation analysis
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“QJ1021” across 2 loaded brands
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Technical comparison
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| Parameter | FAGQJ1021-XL-N2-MPA105 × 160 × 26 mm | NSKQJ1021105 × 160 × 26 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | NSK |
| Designation | QJ1021-XL-N2-MPA | QJ1021 |
| Product family | — | Four point contact ball bearing |
| Detailed type | Four-point contact bearing | Four point contact ball bearing |
| Series | QJ1021 | — |
| Bore diameterd | 105 mm | 105 mm |
| Outside diameterD | 160 mm | 160 mm |
| WidthB | 26 mm | 26 mm |
| Basic dynamic load ratingC | 126 kN | — |
| Basic static load ratingC0 | 145 kN | — |
| Fatigue load limitPu | 8.7 kN | — |
| Reference speednref | 3550 r/min | — |
| Limiting speednG | 8100 r/min | — |
| Mass≈m | 2.04 kg | 2 kg |
| Precision class | PN — Normal (ISO 492:2023) | — |
| Cage | MPA — Solid brass cage, outer ring guided | Machined brass |
| Minimum operating temperatureTmin | -30 °C | — |
| Maximum operating temperatureTmax | 150 °C | — |
| Axial load ratings | ||
| Basic dynamic axial load ratingCa | — | 127000 N |
| Basic static axial load ratingC0a | — | 269000 N |
| Boundary dimensions | ||
| Individual bearing widthB | — | 26 mm |
| Minimum bearing chamferr min. | — | 2 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 | ||
| Minimum chamfer dimensionrmin | 2 mm | — |
| Minimum chamfer dimensionrmin | 0.079 in | — |
| Shoulder diameter outer ringD1 | 141.45 mm | — |
| Shoulder diameter outer ringD1 | 5.569 in | — |
| Shoulder diameter inner ringd1 | 124.6 mm | — |
| Shoulder diameter inner ringd1 | 4.906 in | — |
| Distance between the apexes of the pressure conesa | 92.8 mm | — |
| Distance between the apexes of the pressure conesa | 3.654 in | — |
| Hight retaining slotan | 6.5 mm | — |
| Hight retaining slotan | 0.256 in | — |
| Width retaining slotbn | 6.5 mm | — |
| Width retaining slotbn | 0.256 in | — |
| Radius retaining slotrn | 0.5 mm | — |
| Radius retaining slotrn | 0.02 in | — |
| Angle retaining slot | 45 ° | — |
| Contact angleα | 35 ° | — |
| Load-centre geometry | ||
| Load-centre spacinga0 | — | 92.8 mm |
| Lubrication-qualified speed | ||
| Limiting speed — grease | — | 3000 r/min |
| Limiting speed — oil | — | 4000 r/min |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | 126,000 N | — |
| Basic dynamic load rating, radialCr | 28,327.338 lbf | — |
| Basic static load rating, radialC0r | 145,000 N | — |
| Basic static load rating, radialC0r | 32,598.921 lbf | — |
| Fatigue load limit, radialCur | 8,700 N | — |
| Fatigue load limit, radialCur | 1,955.935 lbf | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 1794540 | — |
| Base Type | QJ1021 | — |
| Product Line Id | 14 | — |
| Base product | 230508AD41 | — |
| Bearing X designation | QJ1021-XL-N2-MPA | — |
| Mounting Manager ID | QJ1021-XL-N2-MPA | — |
| Grease application ID | QJ1021-XL-N2-MPA | — |
| Mass reference | ||
| Approximate mass | — | 2 kg |
| Mounting dimensions | ||
| Minimum diameter shaft shoulderda min | 114 mm | — |
| Minimum diameter shaft shoulderda min | 4.488 in | — |
| Maximum diameter of housing shoulderDa max | 151 mm | — |
| Maximum diameter of housing shoulderDa max | 5.945 in | — |
| Maximum fillet radiusra max | 2 mm | — |
| Maximum fillet radiusra max | 0.079 in | — |
| Mounting dimensions — shown arrangement | ||
| Minimum shaft shoulder diameterda min. | — | 115 mm |
| Maximum housing shoulder diameterDa max. | — | 150 mm |
| Maximum adjacent fillet radiusra max. | — | 2 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 stabilizationS0 | Rings dimensional stabilized up to 150° | — |
| Axial internal clearanceCN | Group N (CN) | — |
| Product Identity | ||
| Construction | Four point contact ball bearing QJ10..-XL-N2-MPA, X-life, holding grooves, solid brass cage | — |
| Short Description | Four-point contact bearing | — |
| Technical Data | ||
| Bore Diameter (D) | 105 mm | — |
| Outside Diameter (D) | 160 mm | — |
| Width (B) | 26 mm | — |
| Basic Dynamic Load Rating, Radial (Cr) | 126,000 N | — |
| Basic Static Load Rating, Radial (C0R) | 145,000 N | — |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Limiting Speed (Ng) | 8,100 1/min | — |
| Operating Temperature Max. (Tmax) | 150 °C | — |
| Reference Speed (Nϑr) | 3,550 1/min | — |
| Angle Retaining Slot (Angle Retain) | 45 ° | — |
| Hight Retaining Slot (An) | 6.5 mm | — |
| Radius Retaining Slot (Rn) | 0.5 mm | — |
| Fatigue Load Limit, Radial (Cur) | 8,700 N | — |
| Minimum Diameter Shaft Shoulder (Da Min) | 114 mm | — |
| Shoulder Diameter Inner Ring (D1) | 124.6 mm | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | 151 mm | — |
| Minimum Chamfer Dimension (Rmin) | 2 mm | — |
| Maximum Fillet Radius (Ra Max) | 2 mm | — |
| Shoulder Diameter Outer Ring (D1) | 141.45 mm | — |
| Contact Angle (Α) | 35 ° | — |
| Distance Between The Apexes Of The Pressure Cones (A) | 92.8 mm | — |
| Width Retaining Slot (Bn) | 6.5 mm | — |
| 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 | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.