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| Parameter | TIMKENHH506349 / HH50631049.987 × 114.3 × 44.45 mm | KOYOHH506349LFT/10/1BZ49.987 × 114.3 × 44.45 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | HH506349 / HH506310 | HH506349LFT/10/1BZ |
| Product family | TS - Tapered Single | Automotive bearings |
| Detailed type | Tapered roller bearings | Automotive bearings |
| Series | HH506300 | — |
| Bore diameterd | 49.987 mm | 49.987 mm |
| Outside diameterD | 114.3 mm | 114.3 mm |
| WidthB | 44.45 mm | 44.45 mm |
| Basic dynamic load ratingC | 246 kN | — |
| Basic static load ratingC0 | 290 kN | — |
| Mass≈m | 2.26 kg | 2.29 kg |
| Precision class | ABMA Class 2 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.45 | — |
| Y1 Factor | 1.49 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.82 | — |
| E Factor | 0.40 | — |
| Cg Factor | 0.1078 | — |
| Classification | ||
| Official Category Path | — | Automotive bearings - Automotive bearings |
| Official Classification 1 | — | Automotive bearings |
| Manufacturer Identity | ||
| Material Number | 000000000190051619 | — |
| Official Class Key | — | 200-010-000 |
| World Assembly Part Number | KHH506349_KHH506310 | — |
| Inner Ring Part Number | KHH506349 | — |
| Outer Ring Part Number | KHH506310 | — |
| Drawing Number | A-73579 | — |
| Upc | 0053893790602 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.59 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 1.9680 in Bore | 4.5000 in OD | 1.7500 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| Stockno. | — | 70049 |
| d | — | 114.3 mm |
| B | — | 44.45 mm |
| C | — | 35.45 mm |
| T | — | 44.45 mm |
| Overall Width | 50.550 mm | — |
| Mass (Reference) | — | 2.29 kg |
| Radial Rating | 63,700 N | — |
| Axial Rating | 43,800 N | — |
| Dynamic Rating C1 | 246,000 N | — |
| Dynamic Rating C90 | 63,700 N | — |
| Dynamic Axial Rating Ca90 | 43,800 N | — |
| Dynamic Axial Rating Ca1 | 169,000 N | — |
| Static Radial Rating C0 | 290,000 N | — |
| Extended Dynamic Rating Ce | 0 N | — |
| Static Axial Rating C0A | 339,000 N | — |
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.