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| Parameter | TIMKENL217849 / L21781088.9 × 123.825 × 20.638 mm | KOYOL217849/1088.9 × 123.825 × 20.638 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | L217849 / L217810 | L217849/10 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | L217800 | — |
| Bore diameterd | 88.9 mm | 88.9 mm |
| Outside diameterD | 123.825 mm | 123.825 mm |
| WidthB | 20.638 mm | 20.638 mm |
| Basic dynamic load ratingC | 92.6 kN | 102 kN |
| Basic static load ratingC0 | 156 kN | 145 kN |
| Fatigue load limitPu | — | 21.5 kN |
| Limiting speednG | — | 2800 r/min |
| Mass≈m | 0.74 kg | 0.742 kg |
| Precision class | ABMA Class 2 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.77 | — |
| Y1 Factor | 1.82 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 1.00 | — |
| E Factor | 0.33 | — |
| Cg Factor | 0.1152 | — |
| 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 | 000000000100192819 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | L217849_L217810 | — |
| Inner Ring Part Number | L217849 | — |
| Outer Ring Part Number | L217810 | — |
| Drawing Number | A-14909 | — |
| Upc | 0053893715902 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.5 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 3.5000 in Bore | 4.8750 in OD | 0.8125 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 123.825 mm |
| T | — | 20.638 mm |
| B | — | 20.638 mm |
| C | — | 16.670 mm |
| Overall Width | 23.438 mm | — |
| R(Min.) | — | 1.6 mm |
| Radial Rating | 24,000 N | — |
| R1(Min.) | — | 1.6 mm |
| Axial Rating | 13,600 N | — |
| Basic Load Ratings : Cr | — | 102 kN |
| Dynamic Rating C1 | 92,600 N | — |
| Basic Load Ratings : C0R | — | 145 kN |
| Dynamic Rating C90 | 24,000 N | — |
| Fatigue Load Limit : Cu | — | 21.5 kN |
| Dynamic Axial Rating Ca90 | 13,600 N | — |
| Limiting Speeds(Grease Lub.) | — | 2800 min-1 |
| Dynamic Axial Rating Ca1 | 52,300 N | — |
| Limiting Speeds(Oil Lub.) | — | 3700 min-1 |
| Static Radial Rating C0 | 156,000 N | — |
| Load Center Spread : A | — | 20.7 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Constant :E | — | 0.33 |
| Static Axial Rating C0A | 150,000 N | — |
| Axial Load Factors : Y1 | — | 1.82 |
| Axial Load Factors : Y0 | — | 1.00 |
| Da | — | 116.0 mm |
| Db | — | 119.0 mm |
| Ra(Max.) | — | 1.6 mm |
| Rb(Max.) | — | 1.6 mm |
| Mass(Refer.) | — | 0.742 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.