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| Parameter | SKF48290/Q127 × × mm | TIMKEN48290DW-903A1127 × 182.562 × 76.2 mm | KOYO48290D/20/20D127 × 182.563 × 158.75 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | 48290/Q | 48290DW-903A1 | 48290D/20/20D |
| Product family | Tapered roller bearings | TDI - Tapered Double Inner | Four-row tapered roller bearings |
| Detailed type | Single row tapered roller bearing, cone | Tapered roller bearings | Rolling mill roll neck bearings |
| Series | — | 48200 | — |
| Bore diameterd | 127 mm | 127 mm | 127 mm |
| Outside diameterD | — | 182.562 mm | 182.563 mm |
| WidthB | — | 76.2 mm | 158.75 mm |
| Basic dynamic load ratingC | 229 kN | 466 kN | 835 kN |
| Basic static load ratingC0 | 440 kN | 987 kN | 1720 kN |
| Fatigue load limitPu | — | — | 239 kN |
| Mass≈m | 2.17 kg | 6.69 kg | 13.6 kg |
| Precision class | — | ABMA Class 3 | — |
| Sealing | Without | Open | — |
| Cage | Sheet metal | Steel cage | — |
| Lubricant | None | — | — |
| Calculation Factors | |||
| K Factor | — | 1.91 | — |
| Y1 Factor | — | 2.21 | — |
| Y2 Factor | — | 3.29 | — |
| Y0 Factor | — | 2.16 | — |
| E Factor | — | 0.31 | — |
| Cg Factor | — | 0.1138 | — |
| 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 |
| Dimensions | |||
| Width, total | 38.1 mm | — | — |
| Width, inner ring | 38.1 mm | — | — |
| Logistics | |||
| Product net weight | 2.17 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| UNSPSC code | 31171516 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 000000000190118052 | — |
| Official Class Key | — | — | 140-020-000 |
| World Assembly Part Number | — | 48290DW_48220 | — |
| Inner Ring Part Number | — | 48290DW | — |
| Outer Ring Part Number | — | 48220 | — |
| Drawing Number | — | B-159412 | — |
| Upc | — | 0013992766250 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:47.663 | — |
| Product identity | |||
| Official product category | Tapered roller bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/single-row-tapered-roller-bearings | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Type Description | — | TDI - Tapered Double Inner | — |
| Construction | — | Precision Tapered Roller Bearing Assembly | Imperial Series | 5.0000 in Bore | 7.1875 in OD | 3.0000 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 3 | — |
| Number Of Rows | — | 2 | — |
| Tapered Bore | — | N | — |
| Properties | |||
| Bearing part | Inner ring, cage and roller assembly (cone assembly) | — | — |
| Bore type | Cylindrical | — | — |
| Arrangement of contact angle (double-row bearing) | Not applicable | — | — |
| Matched arrangement | No | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Unit system | Inch | — | — |
| Indicative carbon footprint for new product | 8.0 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 182.563 mm |
| T | — | — | 158.750 mm |
| W | — | — | 158.750 mm |
| R(Min.) | — | — | 3.2 mm |
| R1(Min.) | — | — | 1.6 mm |
| Overall Width | — | 0.000 mm | — |
| Basic Load Ratings : Cr | — | — | 835 kN |
| Radial Rating | — | 121,000 N | — |
| Basic Load Ratings : C0R | — | — | 1720 kN |
| Axial Rating | — | 36,300 N | — |
| Fatigue Load Limit : Cu | — | — | 239 kN |
| Dynamic Rating C1 | — | 466,000 N | — |
| Axial Load Factors : Y2 | — | — | 2.21 mm |
| Dynamic Rating C90 | — | 121,000 N | — |
| Axial Load Factors : Y3 | — | — | 3.29 |
| Dynamic Axial Rating Ca90 | — | 36,300 N | — |
| Axial Load Factors : Y0 | — | — | 2.16 |
| Dynamic Axial Rating Ca1 | — | 140,000 N | — |
| Constant E | — | — | 0.31 |
| Static Radial Rating C0 | — | 987,000 N | — |
| Da(Min.) | — | — | 140 mm |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Da(Max.) | — | — | 166 mm |
| Static Axial Rating C0A | — | 439,000 N | — |
| S(Min.) | — | — | 3.7 mm |
| Ra(Max.) | — | — | 3.2 mm |
| Rb(Max.) | — | — | 1.6 mm |
| Mass(Refer.) | — | — | 13.6 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.