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| Parameter | FAG30248240 × 440 × 79 mm | KOYO30248R240 × 440 × 72 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | KOYO |
| Designation | 30248 | 30248R |
| Product family | — | Single-row / Metric series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Bore diameterd | 240 mm | 240 mm |
| Outside diameterD | 440 mm | 440 mm |
| WidthB | 79 mm | 72 mm |
| Basic dynamic load ratingC | 870 kN | 1540 kN |
| Basic static load ratingC0 | 1260 kN | 1790 kN |
| Fatigue load limitPu | 129 kN | 191 kN |
| Reference speednref | 1130 r/min | — |
| Limiting speednG | 1640 r/min | 730 r/min |
| Mass≈m | 45 kg | 49.5 kg |
| Precision class | PN — Normal (ISO 492:2023) | — |
| Cage | Standard — Sheet steel cage, window cage, roller-guided | — |
| Minimum operating temperatureTmin | -30 °C | — |
| Maximum operating temperatureTmax | 200 °C | — |
| Calculation factors | ||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | 0.36 | — |
| Dynamic axial load factorY | 1.68 | — |
| Static axial load factorY0 | 0.92 | — |
| Capabilities & suitability | ||
| Radial load capacity | Yes | — |
| Axial load capacity in one direction | Yes | — |
| Suitable for grease lubrication | Yes | — |
| Suitable for oil lubrication | Yes | — |
| Unsealed design | Yes | — |
| Largebearing | Yes | — |
| Classification | ||
| Official Category Path | — | Tapered roller bearings - Single-row - Metric series |
| Official Classification 1 | — | Tapered roller bearings / Single-row / Metric series |
| Dimensions | ||
| Minimum chamfer dimension of inner ring back facer1, 2 min | 5 mm | — |
| Minimum chamfer dimension of inner ring back facer1, 2 min | 0.197 in | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 4 mm | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 0.157 in | — |
| Distance between the apexes of the pressure conesa | 76 mm | — |
| Distance between the apexes of the pressure conesa | 2.992 in | — |
| Guidance rib diameter of inner ringd1 | 325 mm | — |
| Guidance rib diameter of inner ringd1 | 12.795 in | — |
| Main Dimensions & Performance Data | ||
| Width, inner ringB | 72 mm | — |
| Width, inner ringB | 2.835 in | — |
| Width, outer ringC | 60 mm | — |
| Width, outer ringC | 2.362 in | — |
| Width, totalT | 79 mm | — |
| Width, totalT | 3.11 in | — |
| Basic dynamic load rating, radialCr | 870,000 N | — |
| Basic dynamic load rating, radialCr | 195,593.525 lbf | — |
| Basic static load rating, radialC0r | 1,260,000 N | — |
| Basic static load rating, radialC0r | 283,273.381 lbf | — |
| Fatigue load limit, radialCur | 129,000 N | — |
| Fatigue load limit, radialCur | 29,001.799 lbf | — |
| Thermal speed ratingnϑr | 1,130 1/min | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 383358 | — |
| Official Class Key | — | 050-010-010 |
| Base Type | 30248 | — |
| Gpsd Group | F04 | — |
| Product Line Id | 70 | — |
| X Life Marking | n.r. | — |
| SAP material number | 0382062340000 | — |
| Base product | 2305091001 | — |
| Bearing X designation | 30248 | — |
| Mounting Manager ID | 30248 | — |
| Grease application ID | 30248 | — |
| Mounting dimensions | ||
| Maximum diameter of shaft shoulderda max | 285 mm | — |
| Maximum diameter of shaft shoulderda max | 11.22 in | — |
| Minimum diameter of shaft shoulderdb min | 257 mm | — |
| Minimum diameter of shaft shoulderdb min | 10.118 in | — |
| Minimum diameter of housing shoulderDa min | 383 mm | — |
| Minimum diameter of housing shoulderDa min | 15.079 in | — |
| Maximum diameter of housing shoulderDa max | 420 mm | — |
| Maximum diameter of housing shoulderDa max | 16.535 in | — |
| Minimum diameter of housing shoulderDb min | 410 mm | — |
| Minimum diameter of housing shoulderDb min | 16.142 in | — |
| Minimum axial spaceCa min | 10 mm | — |
| Minimum axial spaceCa min | 0.394 in | — |
| Minimum axial spaceCb min | 19 mm | — |
| Minimum axial spaceCb min | 0.748 in | — |
| Maximum fillet radius of shaftra max | 5 mm | — |
| Maximum fillet radius of shaftra max | 0.197 in | — |
| Maximum fillet radius of housingrb max | 4 mm | — |
| Maximum fillet radius of housingrb max | 0.157 in | — |
| Product characteristics | ||
| Tolerance classPN | Normal (ISO 492:2023) | — |
| Heat treatment | Standard | — |
| Internal design | Standard | — |
| Quality level | Standard | — |
| Number of rows1 | Single-row design | — |
| Product Identity | ||
| Construction | Tapered roller bearings 302, main dimensions acc. to DIN 720, separable | — |
| Short Description | Tapered roller bearing | — |
| Technical Data | ||
| d | — | 440 mm |
| T | — | 79 mm |
| B | — | 72 mm |
| Bore Diameter (D) | 240 mm | — |
| C | — | 60 mm |
| Outside Diameter (D) | 440 mm | — |
| R(Min.) | — | 5 mm |
| Width (B) | 79 mm | — |
| R1(Min.) | — | 4 mm |
| Basic Dynamic Load Rating, Radial (Cr) | 870,000 N | — |
| Basic Load Ratings : Cr | — | 1540 kN |
| Basic Static Load Rating, Radial (C0R) | 1,260,000 N | — |
| Basic Load Ratings : C0R | — | 1790 kN |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Fatigue Load Limit : Cu | — | 191 kN |
| Limiting Speed (Ng) | 1,640 1/min | — |
| Limiting Speeds(Grease Lub.) | — | 730 min-1 |
| Operating Temperature Max. (Tmax) | 200 °C | — |
| Limiting Speeds(Oil Lub.) | — | 980 min-1 |
| Reference Speed (Nϑr) | 1,130 1/min | — |
| Load Center Spread : A | — | 82.7 mm |
| Maximum Fillet Radius Of Housing (Rb Max) | 4 mm | — |
| Constant E | — | 0.42 |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 4 mm | — |
| Axial Load Factors : Y1 | — | 1.43 |
| Minimum Diameter Of Housing Shoulder (Da Min) | 383 mm | — |
| Axial Load Factors : Y0 | — | 0.79 |
| Minimum Diameter Of Housing Shoulder (Db Min) | 410 mm | — |
| Da(Min.) | — | 377 mm |
| Width, Outer Ring (C) | 60 mm | — |
| Db(Max.) | — | 287 mm |
| Fatigue Load Limit, Radial (Cur) | 129,000 N | — |
| Da(Max.) | — | 422 mm |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.36 | — |
| Db(Min.) | — | 409 mm |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 285 mm | — |
| Sa(Min.) | — | 14 mm |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 257 mm | — |
| Sb(Min.) | — | 18 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | 420 mm | — |
| Ra(Max.) | — | 4 mm |
| Dynamic Axial Load Factor (Y) | 1.68 | — |
| Rb(Max.) | — | 3 mm |
| Maximum Fillet Radius (Ra Max) | 5 mm | — |
| Mass(Refer.) | — | 49.5 kg |
| Minimum Axial Space (Cb Min) | 19 mm | — |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | 5 mm | — |
| Guidance Rib Diameter Of Inner Ring (D1) | 325 mm | — |
| Minimum Axial Space (Ca Min) | 10 mm | — |
| Width, Inner Ring (B) | 72 mm | — |
| Static Axial Load Factor (Y0) | 0.92 | — |
| Distance Between The Apexes Of The Pressure Cones (A) | 76 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.