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| Parameter | TIMKEN56418 / 56650106.362 × 165.1 × 36.512 mm | KOYO56418R/650106.362 × 165.1 × 36.512 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 56418 / 56650 | 56418R/650 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 56000 | — |
| Bore diameterd | 106.362 mm | 106.362 mm |
| Outside diameterD | 165.1 mm | 165.1 mm |
| WidthB | 36.512 mm | 36.512 mm |
| Basic dynamic load ratingC | 226 kN | 245 kN |
| Basic static load ratingC0 | 355 kN | 325 kN |
| Fatigue load limitPu | — | 46.3 kN |
| Limiting speednG | — | 2200 r/min |
| Mass≈m | 2.71 kg | 2.692 kg |
| Precision class | ABMA Class 2 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.18 | — |
| Y1 Factor | 1.21 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.66 | — |
| E Factor | 0.50 | — |
| Cg Factor | 0.1584 | — |
| 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 | 000000000100049366 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | 56418_56650 | — |
| Inner Ring Part Number | 56418 | — |
| Outer Ring Part Number | 56650 | — |
| Drawing Number | A-6796 | — |
| Upc | 0053893780023 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.273 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 4.1875 in Bore | 6.5000 in OD | 1.4375 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 165.100 mm |
| T | — | 36.512 mm |
| B | — | 36.512 mm |
| C | — | 26.988 mm |
| Overall Width | 42.112 mm | — |
| R(Min.) | — | 3.6 mm |
| Radial Rating | 58,700 N | — |
| R1(Min.) | — | 3.2 mm |
| Axial Rating | 50,000 N | — |
| Basic Load Ratings : Cr | — | 245 kN |
| Dynamic Rating C1 | 226,000 N | — |
| Basic Load Ratings : C0R | — | 325 kN |
| Dynamic Rating C90 | 58,700 N | — |
| Fatigue Load Limit : Cu | — | 46.3 kN |
| Dynamic Axial Rating Ca90 | 50,000 N | — |
| Limiting Speeds(Grease Lub.) | — | 2200 min-1 |
| Dynamic Axial Rating Ca1 | 193,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 2900 min-1 |
| Static Radial Rating C0 | 355,000 N | — |
| Load Center Spread : A | — | 38.6 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Constant :E | — | 0.50 |
| Static Axial Rating C0A | 513,000 N | — |
| Axial Load Factors : Y1 | — | 1.21 |
| Axial Load Factors : Y0 | — | 0.66 |
| Da | — | 149.0 mm |
| Db | — | 159.0 mm |
| Ra(Max.) | — | 3.6 mm |
| Rb(Max.) | — | 3.2 mm |
| Mass(Refer.) | — | 2.692 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.