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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Designation candidates
“21304” across 2 loaded brands
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Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | FAG21304-E1-XL-TVPB20 × 52 × 15 mm | NSK21304CDE420 × 52 × 15 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | NSK |
| Designation | 21304-E1-XL-TVPB | 21304CDE4 |
| Product family | — | Spherical roller bearing |
| Detailed type | Spherical roller bearings | Spherical roller bearings |
| Series | 21304 | — |
| Bore diameterd | 20 mm | 20 mm |
| Outside diameterD | 52 mm | 52 mm |
| WidthB | 15 mm | 15 mm |
| Basic dynamic load ratingC | 41 kN | 29.3 kN |
| Basic static load ratingC0 | 33 kN | 26.9 kN |
| Fatigue load limitPu | 3.8 kN | — |
| Reference speednref | 9700 r/min | — |
| Limiting speednG | 16000 r/min | — |
| Mass≈m | 0.158 kg | 0.17 kg |
| Internal clearance | CN (Group N) — Normal internal clearance | CN |
| Cage | TVPB — Plastic cage | Pressed steel |
| Minimum operating temperatureTmin | -30 °C | — |
| Maximum operating temperatureTmax | 120 °C | — |
| Boundary dimensions | ||
| Bearing widthB | — | 15 mm |
| Minimum bearing chamferr min. | — | 1.1 mm |
| Calculation factors | ||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | 0.3 | — |
| Dynamic axial load factorY1 | 2.25 | — |
| Dynamic axial load factorY2 | 3.34 | — |
| Static axial load factorY0 | 2.2 | 2.1 |
| Construction | ||
| Bore construction | — | Cylindrical bore |
| Cage material and manufacture | — | Pressed steel |
| Outer-ring lubrication features | — | E4: oil groove and oil holes |
| Internal clearance — catalogue omission rule | — | CN (normal), where no clearance suffix is specified |
| Precision — catalogue omission rule | — | ISO Normal, where no precision suffix is specified |
| Catalogue NSK HPS marking | — | No HPS asterisk in this row |
| Dimensions | ||
| Minimum chamfer dimensionrmin | 1.1 mm | — |
| Minimum chamfer dimensionrmin | 0.043 in | — |
| Bore diameter outer ringD1 | 43 mm | — |
| Bore diameter outer ringD1 | 1.693 in | — |
| Raceway diameter of the inner ringd2 | 28.9 mm | — |
| Raceway diameter of the inner ringd2 | 1.138 in | — |
| Equivalent-load factors | ||
| Dynamic load ratio thresholde | — | 0.31 |
| Dynamic axial factor above thresholdY2 | — | 3.2 |
| Dynamic axial factor at or below thresholdY3 | — | 2.1 |
| Load ratings | ||
| Basic dynamic radial load ratingCr | — | 29300 N |
| Basic static radial load ratingC0r | — | 26900 N |
| Lubrication-qualified speed | ||
| Thermal speed rating — oil bath | — | 10000 r/min |
| Mechanical limiting speed — forced oil circulation | — | Not stated in this catalogue row |
| Limiting speed — grease | — | 6300 r/min |
| Limiting speed — oil bath | — | 8200 r/min |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | 41,000 N | — |
| Basic dynamic load rating, radialCr | 9,217.626 lbf | — |
| Basic static load rating, radialC0r | 33,000 N | — |
| Basic static load rating, radialC0r | 7,419.065 lbf | — |
| Fatigue load limit, radialCur | 3,800 N | — |
| Fatigue load limit, radialCur | 854.317 lbf | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 386651 | — |
| Base Type | 21304 | — |
| Old Designation | ["21304-E1-TVPB","21304E1TVPB"] | — |
| Gpsd Group | F02 | — |
| Product Line Id | 37 | — |
| X Life Marking | XL | — |
| SAP material number | 0167022040000 | — |
| Base product | 2305091101 | — |
| Bearing X designation | 21304-E1-XL-TVPB | — |
| Mounting Manager ID | 21304-E1-XL-TVPB | — |
| Grease application ID | 21304-E1-XL-TVPB | — |
| Mounting dimensions | ||
| Minimum shaft shoulder diameterda min. | — | 27 mm |
| Maximum shaft shoulder diameterda max. | — | 28 mm |
| Maximum housing shoulder diameterDa max. | — | 45 mm |
| Minimum housing shoulder diameterDa min. | — | 42 mm |
| Maximum adjacent fillet radiusra max. | — | 1 mm |
| Minimum diameter shaft shoulderda min | 27 mm | — |
| Minimum diameter shaft shoulderda min | 1.063 in | — |
| Maximum diameter of housing shoulderDa max | 45 mm | — |
| Maximum diameter of housing shoulderDa max | 1.772 in | — |
| Maximum recess radiusra max | 1 mm | — |
| Maximum recess radiusra max | 0.039 in | — |
| Product characteristics | ||
| Radial internal clearanceCN (Group N) | Normal internal clearance | — |
| Product Identity | ||
| Short Description | Spherical Roller Bearing | — |
| Reference mass | ||
| Approximate catalogue mass | — | 0.17 kg |
| Technical Data | ||
| Bore Diameter (D) | 20 mm | — |
| Outside Diamater (D) | 52 mm | — |
| Total Width (B) | 15 mm | — |
| Basic Dynamic Load Rating, Radial (Cr) | 41,000 N | — |
| Basic Static Load Rating, Radial (C0R) | 33,000 N | — |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Minimum Diameter Shaft Shoulder (Da) | 27 mm | — |
| Operating Temperature Max. (Tmax) | 120 °C | — |
| Limiting Speed (Limiting Spe) | 16,000 1/min | — |
| Reference Speed (Nϑr) | 9,700 1/min | — |
| Maximum Recess Radius (Ra Max) | 1 mm | — |
| Maximum Diameter Of Housing Shoulder (Da) | 45 mm | — |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.3 | — |
| Dynamic Axial Load Factor (Y1) | 2.25 | — |
| Bore Diameter Outer Ring (D1) | 43 mm | — |
| Raceway Diameter Of The Inner Ring (D2) | 28.9 mm | — |
| Minimum Chamfer Dimension (Rmin) | 1.1 mm | — |
| Static Axial Load Factor (Y0) | 2.2 | — |
| Dynamic Axial Load Factor (Y2) | 3.34 | — |
| Fatigue Load Limit, Radial (Cur) | 3,800 N | — |
| Temperature range | ||
| Operating temperature min.Tmin | -30 °C | — |
| Operating temperature min.Tmin | -22 °F | — |
| Operating temperature max.Tmax | 120 °C | — |
| Operating temperature max.Tmax | 248 °F | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.