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| Parameter | TIMKENM249732 / M249710228.6 × 358.775 × 71.438 mm | KOYOM249732/10228.6 × 358.775 × 71.438 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | M249732 / M249710 | M249732/10 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | M249700 | — |
| Bore diameterd | 228.6 mm | 228.6 mm |
| Outside diameterD | 358.775 mm | 358.775 mm |
| WidthB | 71.438 mm | 71.438 mm |
| Basic dynamic load ratingC | 914 kN | 968 kN |
| Basic static load ratingC0 | 1850 kN | 1590 kN |
| Fatigue load limitPu | — | 166 kN |
| Limiting speednG | — | 840 r/min |
| Mass≈m | 26.77 kg | 26.54 kg |
| Precision class | ABMA Class 2 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.76 | — |
| Y1 Factor | 1.80 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.99 | — |
| E Factor | 0.33 | — |
| Cg Factor | 0.1526 | — |
| 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 | 000000000100375505 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | M249732_M249710 | — |
| Inner Ring Part Number | M249732 | — |
| Outer Ring Part Number | M249710 | — |
| Drawing Number | C-29352 | — |
| Upc | 0053893120898 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.393 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 9.0000 in Bore | 14.1250 in OD | 2.8125 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 358.775 mm |
| T | — | 71.438 mm |
| B | — | 71.438 mm |
| C | — | 53.975 mm |
| Overall Width | 82.838 mm | — |
| R(Min.) | — | 3.6 mm |
| Radial Rating | 237,000 N | — |
| R1(Min.) | — | 3.2 mm |
| Axial Rating | 135,000 N | — |
| Basic Load Ratings : Cr | — | 968 kN |
| Dynamic Rating C1 | 914,000 N | — |
| Basic Load Ratings : C0R | — | 1590 kN |
| Dynamic Rating C90 | 237,000 N | — |
| Fatigue Load Limit : Cu | — | 166 kN |
| Dynamic Axial Rating Ca90 | 135,000 N | — |
| Limiting Speeds(Grease Lub.) | — | 840 min-1 |
| Dynamic Axial Rating Ca1 | 521,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 1100 min-1 |
| Static Radial Rating C0 | 1,850,000 N | — |
| Load Center Spread : A | — | 64.4 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Constant :E | — | 0.33 |
| Static Axial Rating C0A | 1,790,000 N | — |
| Axial Load Factors : Y1 | — | 1.80 |
| Axial Load Factors : Y0 | — | 0.99 |
| Da | — | 330.0 mm |
| Db | — | 343.0 mm |
| Ra(Max.) | — | 3.6 mm |
| Rb(Max.) | — | 3.2 mm |
| Mass(Refer.) | — | 26.54 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.