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| Parameter | TIMKEN65237A / 6550060.325 × 127 × 44.45 mm | KOYO65237A/50060.325 × 127 × 44.45 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 65237A / 65500 | 65237A/500 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 65000 | — |
| Bore diameterd | 60.325 mm | 60.325 mm |
| Outside diameterD | 127 mm | 127 mm |
| WidthB | 44.45 mm | 44.45 mm |
| Basic dynamic load ratingC | 243 kN | 259 kN |
| Basic static load ratingC0 | 297 kN | 269 kN |
| Fatigue load limitPu | — | 41 kN |
| Limiting speednG | — | 3300 r/min |
| Mass≈m | 2.6 kg | 2.61 kg |
| Calculation Factors | ||
| K Factor | 1.20 | — |
| Y1 Factor | 1.23 | — |
| Y2 Factor | -1.00 | — |
| Y0 Factor | 0.68 | — |
| E Factor | 0.49 | — |
| Cg Factor | 0.0827 | — |
| 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 | 100043444100049268 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | 65237A / 65500 | — |
| Inner Ring Part Number | 65237A | — |
| Outer Ring Part Number | 65500 | — |
| 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 | — | 127.000 mm |
| Overall Width | 46.450 mm | — |
| T | — | 44.450 mm |
| Radial Rating | 63,100 N | — |
| B | — | 44.450 mm |
| Axial Rating | 52,700 N | — |
| C | — | 34.925 mm |
| Dynamic Rating C1 | 243,000 N | — |
| R(Min.) | — | 1.6 mm |
| Dynamic Rating C90 | 63,100 N | — |
| R1(Min.) | — | 3.2 mm |
| Dynamic Axial Rating Ca90 | 52,700 N | — |
| Basic Load Ratings : Cr | — | 259 kN |
| Dynamic Axial Rating Ca1 | 203,000 N | — |
| Basic Load Ratings : C0R | — | 269 kN |
| Static Radial Rating C0 | 297,000 N | — |
| Fatigue Load Limit : Cu | — | 41.0 kN |
| Extended Dynamic Rating Ce | 0 N | — |
| Limiting Speeds(Grease Lub.) | — | 3300 min-1 |
| Static Axial Rating C0A | 421,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 4400 min-1 |
| Load Center Spread : A | — | 35.2 mm |
| Constant :E | — | 0.49 |
| Axial Load Factors : Y1 | — | 1.23 |
| Axial Load Factors : Y0 | — | 0.68 |
| Da | — | 107.0 mm |
| Db | — | 119.0 mm |
| Ra(Max.) | — | 1.6 mm |
| Rb(Max.) | — | 3.2 mm |
| Mass(Refer.) | — | 2.61 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.