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| Parameter | TIMKEN26131 / 2627433.337 × 69.723 × 19.05 mm | KOYO26131/28333.338 × 72 × 18.923 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 26131 / 26274 | 26131/283 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 26000 | — |
| Bore diameterd | 33.337 mm | 33.338 mm |
| Outside diameterD | 69.723 mm | 72 mm |
| WidthB | 19.05 mm | 18.923 mm |
| Basic dynamic load ratingC | 69.6 kN | 69.8 kN |
| Basic static load ratingC0 | 60.1 kN | 60 kN |
| Fatigue load limitPu | — | 8.85 kN |
| Limiting speednG | — | 5900 r/min |
| Mass≈m | 0.33 kg | 0.363 kg |
| Calculation Factors | ||
| K Factor | 1.62 | — |
| Y1 Factor | 1.67 | — |
| Y2 Factor | -1.00 | — |
| Y0 Factor | 0.92 | — |
| E Factor | 0.36 | — |
| Cg Factor | 0.0630 | — |
| 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 | 100083908100096502 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | 26131 / 26274 | — |
| Inner Ring Part Number | 26131 | — |
| Outer Ring Part Number | 26274 | — |
| 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 | — | 72.000 mm |
| Overall Width | 21.223 mm | — |
| T | — | 19.000 mm |
| Radial Rating | 18,100 N | — |
| B | — | 18.923 mm |
| Axial Rating | 11,100 N | — |
| C | — | 15.875 mm |
| Dynamic Rating C1 | 69,600 N | — |
| R(Min.) | — | 3.6 mm |
| Dynamic Rating C90 | 18,100 N | — |
| R1(Min.) | — | 1.6 mm |
| Dynamic Axial Rating Ca90 | 11,100 N | — |
| Basic Load Ratings : Cr | — | 69.8 kN |
| Dynamic Axial Rating Ca1 | 42,900 N | — |
| Basic Load Ratings : C0R | — | 60.0 kN |
| Static Radial Rating C0 | 60,100 N | — |
| Fatigue Load Limit : Cu | — | 8.85 kN |
| Extended Dynamic Rating Ce | 0 N | — |
| Limiting Speeds(Grease Lub.) | — | 5900 min-1 |
| Static Axial Rating C0A | 63,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 7800 min-1 |
| Load Center Spread : A | — | 14.3 mm |
| Constant :E | — | 0.36 |
| Axial Load Factors : Y1 | — | 1.67 |
| Axial Load Factors : Y0 | — | 0.92 |
| Da | — | 62.0 mm |
| Db | — | 65.0 mm |
| Ra(Max.) | — | 3.6 mm |
| Rb(Max.) | — | 1.6 mm |
| Mass(Refer.) | — | 0.363 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.