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| Parameter | TIMKEN477 / 47263.5 × 120 × 29.795 mm | KOYO477/47263.5 × 120 × 29.007 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 477 / 472 | 477/472 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 475 | — |
| Bore diameterd | 63.5 mm | 63.5 mm |
| Outside diameterD | 120 mm | 120 mm |
| WidthB | 29.795 mm | 29.007 mm |
| Basic dynamic load ratingC | 143 kN | 148 kN |
| Basic static load ratingC0 | 186 kN | 161 kN |
| Fatigue load limitPu | — | 25 kN |
| Limiting speednG | — | 3200 r/min |
| Mass≈m | 1.46 kg | 1.46 kg |
| Calculation Factors | ||
| K Factor | 1.52 | — |
| Y1 Factor | 1.56 | — |
| Y2 Factor | -1.00 | — |
| Y0 Factor | 0.86 | — |
| E Factor | 0.38 | — |
| Cg Factor | 0.1083 | — |
| Classification | ||
| Official Category Path | — | Tapered roller bearings - Single-row - Inch series |
| Official Classification 1 | — | Tapered roller bearings / Single-row / Inch series |
| Manufacturer Identity | ||
| Material Number | 100056247100054801 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | 477 / 472 | — |
| Inner Ring Part Number | 477 | — |
| Outer Ring Part Number | 472 | — |
| Official Source System | TS_PREPAIR | — |
| Official Last Run | 2026-08-23T00:00:00 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 120.000 mm |
| Overall Width | 32.007 mm | — |
| T | — | 29.794 mm |
| Radial Rating | 37,200 N | — |
| B | — | 29.007 mm |
| Axial Rating | 24,500 N | — |
| C | — | 24.237 mm |
| Dynamic Rating C1 | 143,000 N | — |
| R(Min.) | — | 0.8 mm |
| Dynamic Rating C90 | 37,200 N | — |
| R1(Min.) | — | 2.0 mm |
| Dynamic Axial Rating Ca90 | 24,500 N | — |
| Basic Load Ratings : Cr | — | 148 kN |
| Dynamic Axial Rating Ca1 | 94,500 N | — |
| Basic Load Ratings : C0R | — | 161 kN |
| Static Radial Rating C0 | 186,000 N | — |
| Fatigue Load Limit : Cu | — | 25.0 kN |
| Extended Dynamic Rating Ce | 0 N | — |
| Limiting Speeds(Grease Lub.) | — | 3200 min-1 |
| Static Axial Rating C0A | 209,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 4200 min-1 |
| Load Center Spread : A | — | 25.7 mm |
| Constant :E | — | 0.38 |
| Axial Load Factors : Y1 | — | 1.56 |
| Axial Load Factors : Y0 | — | 0.86 |
| Da | — | 108.0 mm |
| Db | — | 113.0 mm |
| Ra(Max.) | — | 0.8 mm |
| Rb(Max.) | — | 2.0 mm |
| Mass(Refer.) | — | 1.46 kg |
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.