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| Parameter | TIMKEN18200 / 1833750.8 × 85.725 × 19.05 mm | KOYO18200/33750.8 × 85.725 × 18.263 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 18200 / 18337 | 18200/337 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 18000 | — |
| Bore diameterd | 50.8 mm | 50.8 mm |
| Outside diameterD | 85.725 mm | 85.725 mm |
| WidthB | 19.05 mm | 18.263 mm |
| Basic dynamic load ratingC | 61.1 kN | 63.8 kN |
| Basic static load ratingC0 | 63.9 kN | 66.4 kN |
| Fatigue load limitPu | — | 9.55 kN |
| Limiting speednG | — | 4400 r/min |
| Mass≈m | 0.4 kg | 0.402 kg |
| Precision class | ABMA Class 2 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.03 | — |
| Y1 Factor | 1.06 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.58 | — |
| E Factor | 0.57 | — |
| Cg Factor | 0.0852 | — |
| 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 | 000000000100050667 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | 18200_18337 | — |
| Inner Ring Part Number | 18200 | — |
| Outer Ring Part Number | 18337 | — |
| Drawing Number | A-3504 | — |
| Upc | 0053893755250 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.157 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 2.0000 in Bore | 3.3750 in OD | 0.7500 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 85.725 mm |
| T | — | 19.050 mm |
| B | — | 18.263 mm |
| C | — | 12.700 mm |
| Overall Width | 22.363 mm | — |
| R(Min.) | — | 1.6 mm |
| Radial Rating | 15,800 N | — |
| R1(Min.) | — | 1.6 mm |
| Axial Rating | 15,400 N | — |
| Basic Load Ratings : Cr | — | 63.8 kN |
| Dynamic Rating C1 | 61,100 N | — |
| Basic Load Ratings : C0R | — | 66.4 kN |
| Dynamic Rating C90 | 15,800 N | — |
| Fatigue Load Limit : Cu | — | 9.55 kN |
| Dynamic Axial Rating Ca90 | 15,400 N | — |
| Limiting Speeds(Grease Lub.) | — | 4400 min-1 |
| Dynamic Axial Rating Ca1 | 59,500 N | — |
| Limiting Speeds(Oil Lub.) | — | 5900 min-1 |
| Static Radial Rating C0 | 63,900 N | — |
| Load Center Spread : A | — | 22.7 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Constant :E | — | 0.57 |
| Static Axial Rating C0A | 106,000 N | — |
| Axial Load Factors : Y1 | — | 1.06 |
| Axial Load Factors : Y0 | — | 0.58 |
| Da | — | 76.0 mm |
| Db | — | 81.0 mm |
| Ra(Max.) | — | 1.6 mm |
| Rb(Max.) | — | 1.6 mm |
| Mass(Refer.) | — | 0.402 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.