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| Parameter | TIMKENM224749D-90041120.65 × 174.625 × 66.678 mm | KOYOM224749D/710/710D120.65 × 174.625 × 139.703 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | M224749D-90041 | M224749D/710/710D |
| Product family | TDI - Tapered Double Inner | Four-row tapered roller bearings |
| Detailed type | Tapered roller bearings | Rolling mill roll neck bearings |
| Series | M224700 | — |
| Bore diameterd | 120.65 mm | 120.65 mm |
| Outside diameterD | 174.625 mm | 174.625 mm |
| WidthB | 66.678 mm | 139.703 mm |
| Basic dynamic load ratingC | 426 kN | 765 kN |
| Basic static load ratingC0 | 845 kN | 1450 kN |
| Fatigue load limitPu | — | 205 kN |
| Mass≈m | 5.83 kg | 11.1 kg |
| Precision class | ABMA Class 2 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.76 | — |
| Y1 Factor | 2.03 | — |
| Y2 Factor | 3.02 | — |
| Y0 Factor | 1.98 | — |
| E Factor | 0.33 | — |
| Cg Factor | 0.1575 | — |
| Classification | ||
| Official Category Path | — | Rolling mill roll neck bearings - Four-row tapered roller bearings |
| Official Classification 1 | — | Rolling mill roll neck bearings / Four-row tapered roller bearings |
| Manufacturer Identity | ||
| Material Number | 000000000100190212 | — |
| Official Class Key | — | 140-020-000 |
| World Assembly Part Number | M224749D_M224710 | — |
| Inner Ring Part Number | M224749D | — |
| Outer Ring Part Number | M224710 | — |
| Drawing Number | A-30611 | — |
| Upc | 0053893520858 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.577 | — |
| Product Identity | ||
| Type Description | TDI - Tapered Double Inner | — |
| Construction | Double Row Tapered Roller Bearing Assembly | Imperial Series | 4.7500 in Bore | 6.8750 in OD | 2.6251 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | 2 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 174.625 mm |
| T | — | 139.703 mm |
| W | — | 141.288 mm |
| R(Min.) | — | 1.6 mm |
| R1(Min.) | — | 0.8 mm |
| Overall Width | 0.000 mm | — |
| Basic Load Ratings : Cr | — | 765 kN |
| Radial Rating | 110,000 N | — |
| Basic Load Ratings : C0R | — | 1450 kN |
| Axial Rating | 36,100 N | — |
| Fatigue Load Limit : Cu | — | 205 kN |
| Dynamic Rating C1 | 426,000 N | — |
| Axial Load Factors : Y2 | — | 2.03 mm |
| Dynamic Rating C90 | 110,000 N | — |
| Axial Load Factors : Y3 | — | 3.02 |
| Dynamic Axial Rating Ca90 | 36,100 N | — |
| Axial Load Factors : Y0 | — | 1.98 |
| Dynamic Axial Rating Ca1 | 139,000 N | — |
| Constant E | — | 0.33 |
| Static Radial Rating C0 | 845,000 N | — |
| Da(Min.) | — | 133 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Da(Max.) | — | 159 mm |
| Static Axial Rating C0A | 409,000 N | — |
| S(Min.) | — | 4.9 mm |
| Ra(Max.) | — | 1.6 mm |
| Rb(Max.) | — | 0.8 mm |
| Mass(Refer.) | — | 11.1 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.