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| Parameter | TIMKENL624549 / L624510120.65 × 160.338 × 21.433 mm | KOYOL624549D/514/514D120.65 × 161.925 × 106.365 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | L624549 / L624510 | L624549D/514/514D |
| Product family | TS - Tapered Single | Four-row tapered roller bearings |
| Detailed type | Tapered roller bearings | Rolling mill roll neck bearings |
| Series | L624500 | — |
| Bore diameterd | 120.65 mm | 120.65 mm |
| Outside diameterD | 160.338 mm | 161.925 mm |
| WidthB | 21.433 mm | 106.365 mm |
| Basic dynamic load ratingC | 125 kN | 347 kN |
| Basic static load ratingC0 | 206 kN | 771 kN |
| Fatigue load limitPu | — | 105 kN |
| Mass≈m | 1.16 kg | 6.24 kg |
| Precision class | ABMA Class 2 | — |
| Sealing | Open | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 1.34 | — |
| Y1 Factor | 1.38 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.76 | — |
| E Factor | 0.43 | — |
| Cg Factor | 0.1361 | — |
| Classification | ||
| Official Category Path | — | Rolling mill roll neck bearings - Four-row tapered roller bearings |
| Official Classification 1 | — | Rolling mill roll neck bearings / Four-row tapered roller bearings |
| Manufacturer Identity | ||
| Material Number | 000000000190081304 | — |
| Official Class Key | — | 140-020-000 |
| World Assembly Part Number | GL624549_GL624510 | — |
| Inner Ring Part Number | GL624549 | — |
| Outer Ring Part Number | GL624510 | — |
| Drawing Number | C-124888 | — |
| Upc | 0087796396845 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.387 | — |
| Product Identity | ||
| Type Description | TS - Tapered Single | — |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 4.7500 in Bore | 6.3125 in OD | 0.8438 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 161.925 mm |
| T | — | 106.365 mm |
| W | — | 106.365 mm |
| R(Min.) | — | 1.6 mm |
| R1(Min.) | — | 1.6 mm |
| Overall Width | 24.433 mm | — |
| Basic Load Ratings : Cr | — | 347 kN |
| Radial Rating | 32,400 N | — |
| Basic Load Ratings : C0R | — | 771 kN |
| Axial Rating | 24,100 N | — |
| Fatigue Load Limit : Cu | — | 105 kN |
| Dynamic Rating C1 | 125,000 N | — |
| Axial Load Factors : Y2 | — | 1.56 mm |
| Dynamic Rating C90 | 32,400 N | — |
| Axial Load Factors : Y3 | — | 2.32 |
| Dynamic Axial Rating Ca90 | 24,100 N | — |
| Axial Load Factors : Y0 | — | 1.52 |
| Dynamic Axial Rating Ca1 | 92,900 N | — |
| Constant E | — | 0.43 |
| Static Radial Rating C0 | 206,000 N | — |
| Da(Min.) | — | 130 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Da(Max.) | — | 147 mm |
| Static Axial Rating C0A | 261,000 N | — |
| S(Min.) | — | 5.1 mm |
| Ra(Max.) | — | 1.6 mm |
| Rb(Max.) | — | 1.6 mm |
| Mass(Refer.) | — | 6.24 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.