Cross-brand designation analysis
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Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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One base designation across loaded brands
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“QJ203” across 2 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKFQJ 203 N2MA17 × 40 × 12 mm | FAGQJ203-MPA17 × 40 × 12 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | FAG |
| Designation | QJ 203 N2MA | QJ203-MPA |
| Product family | Angular contact ball bearings | — |
| Detailed type | Four-point contact ball bearing with locating slots | Four-point contact bearing |
| Series | — | QJ203 |
| Bore diameterd | 17 mm | 17 mm |
| Outside diameterD | 40 mm | 40 mm |
| WidthB | 12 mm | 12 mm |
| Basic dynamic load ratingC | 17 kN | 15.9 kN |
| Basic static load ratingC0 | 11.4 kN | 10.5 kN |
| Fatigue load limitPu | 0.48 kN | 0.55 kN |
| Reference speednref | — | 15800 r/min |
| Limiting speednG | 30000 r/min | 34500 r/min |
| Mass≈m | 0.0794 kg | 0.083 kg |
| Precision class | — | PN — Normal (ISO 492:2023) |
| Sealing | Without | — |
| Cage | Machined brass | MPA — Solid brass cage, outer ring guided |
| Bearing material | Bearing steel | — |
| Lubricant | None | — |
| Minimum operating temperatureTmin | — | -30 °C |
| Maximum operating temperatureTmax | — | 150 °C |
| 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 |
| Dimensions | ||
| Contact angle | 35.0 ° | — |
| Minimum chamfer dimensionrmin | — | 0.6 mm |
| Minimum chamfer dimensionrmin | — | 0.024 in |
| Shoulder diameter outer ringD1 | — | 31.9 mm |
| Shoulder diameter outer ringD1 | — | 1.256 in |
| Shoulder diameter inner ringd1 | — | 24.8 mm |
| Shoulder diameter inner ringd1 | — | 0.976 in |
| Distance between the apexes of the pressure conesa | — | 20 mm |
| Distance between the apexes of the pressure conesa | — | 0.787 in |
| Contact angleα | — | 35 ° |
| Engineering — Abutment dimensions | ||
| Abutment diameter shaftd a | min. 21.2 mm | — |
| Abutment diameter housingD a | max. 35.8 mm | — |
| Fillet radiusr a | max. 0.6 mm | — |
| Engineering — Calculation data | ||
| SKF performance class | SKF Explorer | — |
| Calculation factorA | 0.0004 | — |
| 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 | ≈ 23.5 mm | — |
| Shoulder diameter outer ring/ inner diameter housing washerD 1 | ≈ 32.5 mm | — |
| Distance pressure point(s)a | 20 mm | — |
| Locating slot depth outer ringh | 2.5 mm | — |
| Locating slot width outer ringb | 3.5 mm | — |
| Corner radius locating slotr 0 | 0.5 mm | — |
| Chamfer dimension inner ringr 1,2 | min. 0.6 mm | — |
| Logistics | ||
| Product net weight | 0.0794 kg | — |
| eClass code | 23-05-08-05 | — |
| UNSPSC code | 31171538 | — |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | — | 15,900 N |
| Basic dynamic load rating, radialCr | — | 3,574.64 lbf |
| Basic static load rating, radialC0r | — | 10,500 N |
| Basic static load rating, radialC0r | — | 2,360.612 lbf |
| Fatigue load limit, radialCur | — | 550 N |
| Fatigue load limit, radialCur | — | 123.651 lbf |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 366506 |
| Base Type | — | QJ203 |
| Old Designation | — | ["QJ203MPA"] |
| Gpsd Group | — | S03 |
| Product Line Id | — | 14 |
| SAP material number | — | 0392893460000 |
| Base product | — | 230508AD41 |
| Bearing X designation | — | QJ203-MPA |
| Mounting Manager ID | — | QJ203-MPA |
| Grease application ID | — | QJ203-MPA |
| Mounting dimensions | ||
| Minimum diameter shaft shoulderda min | — | 21 mm |
| Minimum diameter shaft shoulderda min | — | 0.827 in |
| Maximum diameter of housing shoulderDa max | — | 36 mm |
| Maximum diameter of housing shoulderDa max | — | 1.417 in |
| Maximum fillet radiusra max | — | 0.6 mm |
| Maximum fillet radiusra max | — | 0.024 in |
| Product characteristics | ||
| Tolerance classPN | — | Normal (ISO 492:2023) |
| Dimensional / heat stabilizationS0 | — | Rings dimensional stabilized up to 150° |
| Axial internal clearanceCN | — | Group N (CN) |
| 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 QJ2..-MPA, 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 | 0.29 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 17 mm |
| Outside Diameter (D) | — | 40 mm |
| Width (B) | — | 12 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 15,900 N |
| Basic Static Load Rating, Radial (C0R) | — | 10,500 N |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Limiting Speed (Ng) | — | 34,500 1/min |
| Operating Temperature Max. (Tmax) | — | 150 °C |
| Reference Speed (Nϑr) | — | 15,800 1/min |
| Fatigue Load Limit, Radial (Cur) | — | 550 N |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 21 mm |
| Shoulder Diameter Inner Ring (D1) | — | 24.8 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 36 mm |
| Minimum Chamfer Dimension (Rmin) | — | 0.6 mm |
| Maximum Fillet Radius (Ra Max) | — | 0.6 mm |
| Shoulder Diameter Outer Ring (D1) | — | 31.9 mm |
| Contact Angle (Α) | — | 35 ° |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 20 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.