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| Parameter | TIMKENJHM516849 / JHM51681085 × 140 × 39 mm | KOYOJHM516849/1085 × 140 × 38 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | JHM516849 / JHM516810 | JHM516849/10 |
| Product family | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | HM516800 | — |
| Bore diameterd | 85 mm | 85 mm |
| Outside diameterD | 140 mm | 140 mm |
| WidthB | 39 mm | 38 mm |
| Basic dynamic load ratingC | 282 kN | 254 kN |
| Basic static load ratingC0 | 339 kN | 308 kN |
| Fatigue load limitPu | — | 46.4 kN |
| Limiting speednG | — | 2700 r/min |
| Mass≈m | 2.26 kg | 2.299 kg |
| Precision class | ABMA Class N | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.43 | — |
| Y1 Factor | 1.47 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.81 | — |
| E Factor | 0.41 | — |
| Cg Factor | 0.0929 | — |
| 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 | 000000000100132552 | — |
| Official Class Key | — | 050-010-020 |
| World Assembly Part Number | JHM516849_JHM516810 | — |
| Inner Ring Part Number | JHM516849 | — |
| Outer Ring Part Number | JHM516810 | — |
| Drawing Number | A-35537 | — |
| Upc | 0053893665177 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:46.313 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 3.3465 in Bore | 5.5118 in OD | 1.5354 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class N | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 140.000 mm |
| T | — | 39.000 mm |
| B | — | 38.000 mm |
| C | — | 31.500 mm |
| Overall Width | 43.100 mm | — |
| R(Min.) | — | 3.0 mm |
| Radial Rating | 73,000 N | — |
| R1(Min.) | — | 2.5 mm |
| Axial Rating | 50,900 N | — |
| Basic Load Ratings : Cr | — | 254 kN |
| Dynamic Rating C1 | 282,000 N | — |
| Basic Load Ratings : C0R | — | 308 kN |
| Dynamic Rating C90 | 73,000 N | — |
| Fatigue Load Limit : Cu | — | 46.4 kN |
| Dynamic Axial Rating Ca90 | 50,900 N | — |
| Limiting Speeds(Grease Lub.) | — | 2700 min-1 |
| Dynamic Axial Rating Ca1 | 196,000 N | — |
| Limiting Speeds(Oil Lub.) | — | 3500 min-1 |
| Static Radial Rating C0 | 339,000 N | — |
| Load Center Spread : A | — | 32.8 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Constant :E | — | 0.41 |
| Static Axial Rating C0A | 403,000 N | — |
| Axial Load Factors : Y1 | — | 1.47 |
| Axial Load Factors : Y0 | — | 0.81 |
| Da | — | 125.0 mm |
| Db | — | 134.0 mm |
| Ra(Max.) | — | 3.0 mm |
| Rb(Max.) | — | 2.5 mm |
| Mass(Refer.) | — | 2.299 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.