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| Parameter | FAG32028-X-H140 × 210 × 45 mm | TIMKEN32028X140 × 210 × 45 mm | KOYO32028JR140 × 210 × 45 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | FAG | TIMKEN | KOYO |
| Designation | 32028-X-H | 32028X | 32028JR |
| Product family | — | TS - Tapered Single | Single-row / Metric series |
| Detailed type | Tapered roller bearings | Tapered roller bearings | Tapered roller bearings |
| Series | 32028 | 32028X | — |
| Bore diameterd | 140 mm | 140 mm | 140 mm |
| Outside diameterD | 210 mm | 210 mm | 210 mm |
| WidthB | 45 mm | 45 mm | 45 mm |
| Basic dynamic load ratingC | 323 kN | 466 kN | 435 kN |
| Basic static load ratingC0 | 590 kN | 644 kN | 585 kN |
| Fatigue load limitPu | 45 kN | — | 79.2 kN |
| Reference speednref | 2180 r/min | — | — |
| Limiting speednG | 2520 r/min | — | 1700 r/min |
| Mass≈m | 5.4 kg | 5.25 kg | 5.28 kg |
| Precision class | P6X — Class 6X (ISO 492:2023) | ABMA Class N | — |
| Sealing | — | Open | — |
| Cage | Standard — Sheet steel cage, window cage, roller-guided | Steel cage | — |
| Minimum operating temperatureTmin | -30 °C | — | — |
| Maximum operating temperatureTmax | 120 °C | — | — |
| Additional information | |||
| Comparative designation to ISO 10317 and ISO 355 | T4DC140 | — | — |
| Calculation Factors | |||
| K Factor | — | 1.27 | — |
| Y1 Factor | — | 1.31 | — |
| Y2 Factor | — | 0.00 | — |
| Y0 Factor | — | 0.72 | — |
| E Factor | — | 0.46 | — |
| Cg Factor | — | 0.1249 | — |
| Calculation factors | |||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | 0.46 | — | — |
| Dynamic axial load factorY | 1.31 | — | — |
| Static axial load factorY0 | 0.72 | — | — |
| 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 | — | — |
| 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 | 2.5 mm | — | — |
| Minimum chamfer dimension of inner ring back facer1, 2 min | 0.098 in | — | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 2 mm | — | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 0.079 in | — | — |
| Distance between the apexes of the pressure conesa | 46 mm | — | — |
| Distance between the apexes of the pressure conesa | 1.811 in | — | — |
| Maximum guidance rib diameter of inner ringd1 max | 180.2 mm | — | — |
| Maximum guidance rib diameter of inner ringd1 max | 7.094 in | — | — |
| Main Dimensions & Performance Data | |||
| Width, inner ringB | 45 mm | — | — |
| Width, inner ringB | 1.772 in | — | — |
| Width, outer ringC | 34 mm | — | — |
| Width, outer ringC | 1.339 in | — | — |
| Width, totalT | 45 mm | — | — |
| Width, totalT | 1.772 in | — | — |
| Basic dynamic load rating, radialCr | 323,000 N | — | — |
| Basic dynamic load rating, radialCr | 72,616.906 lbf | — | — |
| Basic static load rating, radialC0r | 590,000 N | — | — |
| Basic static load rating, radialC0r | 132,643.885 lbf | — | — |
| Fatigue load limit, radialCur | 45,000 N | — | — |
| Fatigue load limit, radialCur | 10,116.906 lbf | — | — |
| Thermal speed ratingnϑr | 2,180 1/min | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | 1896773 | — | — |
| Material Number | — | 000000000101752491 | — |
| Official Class Key | — | — | 050-010-010 |
| Base Type | 32028 | — | — |
| World Assembly Part Number | — | X32028XG_Y32028XG | — |
| Gpsd Group | F05 | — | — |
| Inner Ring Part Number | — | X32028XG | — |
| Product Line Id | 64 | — | — |
| Outer Ring Part Number | — | Y32028XG | — |
| Drawing Number | — | C-102252 | — |
| Upc | — | 0053893310794 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:47.67 | — |
| SAP material number | 0957417800000 | — | — |
| Base product | 2305091001 | — | — |
| Mounting dimensions | |||
| Maximum diameter of shaft shoulderda max | 153 mm | — | — |
| Maximum diameter of shaft shoulderda max | 6.024 in | — | — |
| Minimum diameter of shaft shoulderdb min | 150 mm | — | — |
| Minimum diameter of shaft shoulderdb min | 5.906 in | — | — |
| Minimum diameter of housing shoulderDa min | 187 mm | — | — |
| Minimum diameter of housing shoulderDa min | 7.362 in | — | — |
| Maximum diameter of housing shoulderDa max | 200 mm | — | — |
| Maximum diameter of housing shoulderDa max | 7.874 in | — | — |
| Minimum diameter of housing shoulderDb min | 202 mm | — | — |
| Minimum diameter of housing shoulderDb min | 7.953 in | — | — |
| Minimum axial spaceCa min | 8 mm | — | — |
| Minimum axial spaceCa min | 0.315 in | — | — |
| Minimum axial spaceCb min | 11 mm | — | — |
| Minimum axial spaceCb min | 0.433 in | — | — |
| Maximum fillet radius of shaftra max | 2.5 mm | — | — |
| Maximum fillet radius of shaftra max | 0.098 in | — | — |
| Maximum fillet radius of housingrb max | 2 mm | — | — |
| Maximum fillet radius of housingrb max | 0.079 in | — | — |
| Product characteristics | |||
| Tolerance classP6X | Class 6X (ISO 492:2023) | — | — |
| Heat treatment | Standard | — | — |
| Quality level | H | — | — |
| Number of rows1 | Single-row design | — | — |
| Product Identity | |||
| Construction | Tapered roller bearings 320, main dimensions acc. to DIN 720, separable | Single Row Tapered Roller Bearing Assembly | Imperial Series | 5.5118 in Bore | 8.2677 in OD | 1.7717 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class N | — |
| Short Description | Tapered roller bearing | — | — |
| Type Description | — | TS - Tapered Single | — |
| Number Of Rows | — | 1 | — |
| Tapered Bore | — | N | — |
| Technical Data | |||
| d | — | — | 210 mm |
| T | — | — | 45 mm |
| Bore Diameter (D) | 140 mm | — | — |
| B | — | — | 45 mm |
| Outside Diameter (D) | 210 mm | — | — |
| C | — | — | 34 mm |
| Width (B) | 45 mm | — | — |
| Overall Width | — | 51.600 mm | — |
| R(Min.) | — | — | 2.5 mm |
| Basic Dynamic Load Rating, Radial (Cr) | 323,000 N | — | — |
| Radial Rating | — | 121,000 N | — |
| R1(Min.) | — | — | 2 mm |
| Basic Static Load Rating, Radial (C0R) | 590,000 N | — | — |
| Axial Rating | — | 94,800 N | — |
| Basic Load Ratings : Cr | — | — | 435 kN |
| Operating Temperature Min. (Tmin) | -30 °C | — | — |
| Dynamic Rating C1 | — | 466,000 N | — |
| Basic Load Ratings : C0R | — | — | 585 kN |
| Limiting Speed (Ng) | 2,520 1/min | — | — |
| Dynamic Rating C90 | — | 121,000 N | — |
| Fatigue Load Limit : Cu | — | — | 79.2 kN |
| Operating Temperature Max. (Tmax) | 120 °C | — | — |
| Dynamic Axial Rating Ca90 | — | 94,800 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 1700 min-1 |
| Reference Speed (Nϑr) | 2,180 1/min | — | — |
| Dynamic Axial Rating Ca1 | — | 366,000 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 2200 min-1 |
| Maximum Fillet Radius Of Housing (Rb Max) | 2 mm | — | — |
| Static Radial Rating C0 | — | 644,000 N | — |
| Load Center Spread : A | — | — | 45.6 mm |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 2 mm | — | — |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Constant E | — | — | 0.46 |
| Minimum Diameter Of Housing Shoulder (Da Min) | 187 mm | — | — |
| Static Axial Rating C0A | — | 860,000 N | — |
| Axial Load Factors : Y1 | — | — | 1.31 |
| Minimum Diameter Of Housing Shoulder (Db Min) | 202 mm | — | — |
| Axial Load Factors : Y0 | — | — | 0.72 |
| Width, Outer Ring (C) | 34 mm | — | — |
| Da(Min.) | — | — | 187 mm |
| Maximum Guidance Rib Diameter Of Inner Ring (D1 Max) | 180.2 mm | — | — |
| Db(Max.) | — | — | 153 mm |
| Fatigue Load Limit, Radial (Cur) | 45,000 N | — | — |
| Da(Max.) | — | — | 200 mm |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.46 | — | — |
| Db(Min.) | — | — | 202 mm |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 153 mm | — | — |
| Sa(Min.) | — | — | 8 mm |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 150 mm | — | — |
| Sb(Min.) | — | — | 11 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | 200 mm | — | — |
| Ra(Max.) | — | — | 2 mm |
| Dynamic Axial Load Factor (Y) | 1.31 | — | — |
| Rb(Max.) | — | — | 2 mm |
| Maximum Fillet Radius (Ra Max) | 2.5 mm | — | — |
| Mass(Refer.) | — | — | 5.28 kg |
| Minimum Axial Space (Cb Min) | 11 mm | — | — |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | 2.5 mm | — | — |
| Minimum Axial Space (Ca Min) | 8 mm | — | — |
| Width, Inner Ring (B) | 45 mm | — | — |
| Static Axial Load Factor (Y0) | 0.72 | — | — |
| Distance Between The Apexes Of The Pressure Cones (A) | 46 mm | — | — |
| 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 | — | — |
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.