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| Parameter | TIMKENH715343 / H71531168.262 × 136.525 × 46.038 mm | KOYOH715343/1168.262 × 136.525 × 46.038 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | H715343 / H715311 | H715343/11 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | H715300 | — |
| Bore diameterd | 68.262 mm | 68.262 mm |
| Outside diameterD | 136.525 mm | 136.525 mm |
| WidthB | 46.038 mm | 46.038 mm |
| Basic dynamic load ratingC | 319 kN | 290 kN |
| Basic static load ratingC0 | 405 kN | 369 kN |
| Fatigue load limitPu | — | 49.6 kN |
| Limiting speednG | — | 2800 r/min |
| Mass≈m | 3.23 kg | 3.22 kg |
| Precision class | ABMA Class 7 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.24 | — |
| Y1 Factor | 1.27 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.70 | — |
| E Factor | 0.47 | — |
| Cg Factor | 0.0993 | — |
| 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 | 000000000100086950 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | H715343_H715311 | — |
| Inner Ring Part Number | H715343 | — |
| Outer Ring Part Number | H715311 | — |
| Drawing Number | A-27331 | — |
| Upc | 0053893662329 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.15 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 2.6875 in Bore | 5.3750 in OD | 1.8125 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 7 | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 136.525 mm |
| T | — | 46.038 mm |
| B | — | 46.038 mm |
| C | — | 36.512 mm |
| Overall Width | 52.438 mm | — |
| R(Min.) | — | 3.6 mm |
| Radial Rating | 82,700 N | — |
| R1(Min.) | — | 3.2 mm |
| Axial Rating | 67,000 N | — |
| Basic Load Ratings : Cr | — | 290 kN |
| Dynamic Rating C1 | 319,000 N | — |
| Basic Load Ratings : C0R | — | 369 kN |
| Dynamic Rating C90 | 82,700 N | — |
| Fatigue Load Limit : Cu | — | 49.6 kN |
| Dynamic Axial Rating Ca90 | 67,000 N | — |
| Limiting Speeds(Grease Lub.) | — | 2800 min-1 |
| Dynamic Axial Rating Ca1 | 258,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 3700 min-1 |
| Static Radial Rating C0 | 405,000 N | — |
| Load Center Spread : A | — | 37.0 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Constant :E | — | 0.47 |
| Static Axial Rating C0A | 558,000 N | — |
| Axial Load Factors : Y1 | — | 1.27 |
| Axial Load Factors : Y0 | — | 0.70 |
| Da | — | 118.0 mm |
| Db | — | 132.0 mm |
| Ra(Max.) | — | 3.6 mm |
| Rb(Max.) | — | 3.2 mm |
| Mass(Refer.) | — | 3.22 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.