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| Parameter | TIMKEN48685 / 48620142.875 × 200.025 × 41.275 mm | KOYO48685/20142.875 × 200.025 × 39.688 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 48685 / 48620 | 48685/20 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 48600 | — |
| Bore diameterd | 142.875 mm | 142.875 mm |
| Outside diameterD | 200.025 mm | 200.025 mm |
| WidthB | 41.275 mm | 39.688 mm |
| Basic dynamic load ratingC | 286 kN | 307 kN |
| Basic static load ratingC0 | 560 kN | 491 kN |
| Fatigue load limitPu | — | 66.5 kN |
| Limiting speednG | — | 1700 r/min |
| Mass≈m | 3.87 kg | 3.84 kg |
| Precision class | ABMA Class 2 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.74 | — |
| Y1 Factor | 1.78 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.98 | — |
| E Factor | 0.34 | — |
| Cg Factor | 0.1261 | — |
| 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 | 000000000100041350 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | 48685_48620 | — |
| Inner Ring Part Number | 48685 | — |
| Outer Ring Part Number | 48620 | — |
| Drawing Number | B-68657 | — |
| Upc | 0053893657769 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:46.32 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 5.6250 in Bore | 7.8750 in OD | 1.6250 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 200.025 mm |
| T | — | 41.275 mm |
| B | — | 39.688 mm |
| C | — | 34.130 mm |
| Overall Width | 45.188 mm | — |
| R(Min.) | — | 3.6 mm |
| Radial Rating | 74,300 N | — |
| R1(Min.) | — | 3.3 mm |
| Axial Rating | 42,800 N | — |
| Basic Load Ratings : Cr | — | 307 kN |
| Dynamic Rating C1 | 286,000 N | — |
| Basic Load Ratings : C0R | — | 491 kN |
| Dynamic Rating C90 | 74,300 N | — |
| Fatigue Load Limit : Cu | — | 66.5 kN |
| Dynamic Axial Rating Ca90 | 42,800 N | — |
| Limiting Speeds(Grease Lub.) | — | 1700 min-1 |
| Dynamic Axial Rating Ca1 | 165,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 2200 min-1 |
| Static Radial Rating C0 | 560,000 N | — |
| Load Center Spread : A | — | 38.4 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Constant :E | — | 0.34 |
| Static Axial Rating C0A | 549,000 N | — |
| Axial Load Factors : Y1 | — | 1.78 |
| Axial Load Factors : Y0 | — | 0.98 |
| Da | — | 182.0 mm |
| Db | — | 192.0 mm |
| Ra(Max.) | — | 3.6 mm |
| Rb(Max.) | — | 3.3 mm |
| Mass(Refer.) | — | 3.84 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.