Cross-brand designation analysis
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Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
Automatic candidate selection
One base designation across loaded brands
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Dimensions verified
“HH506349” across 2 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| 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 | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.