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| Parameter | SKFL 44643/VA98325.4 × × mm | TIMKENL44643 / L4461025.4 × 50.292 × 14.224 mm | KOYOL44643R/1025.4 × 50.292 × 14.732 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | L 44643/VA983 | L44643 / L44610 | L44643R/10 |
| Product family | Tapered roller bearings | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Single row tapered roller bearing, cone | Tapered roller bearings | Tapered roller bearings |
| Series | — | L44600 | — |
| Bore diameterd | 25.4 mm | 25.4 mm | 25.4 mm |
| Outside diameterD | — | 50.292 mm | 50.292 mm |
| WidthB | — | 14.224 mm | 14.732 mm |
| Basic dynamic load ratingC | 28 kN | 35.6 kN | 39.1 kN |
| Basic static load ratingC0 | 30 kN | 32.9 kN | 37 kN |
| Fatigue load limitPu | — | — | 5.15 kN |
| Limiting speednG | — | — | 7800 r/min |
| Mass≈m | 0.087 kg | 0.13 kg | 0.131 kg |
| Precision class | — | ABMA Class 2 | — |
| Sealing | Without | Open | — |
| Cage | Sheet metal | Steel cage | — |
| Lubricant | None | — | — |
| Calculation Factors | |||
| K Factor | — | 1.56 | — |
| Y1 Factor | — | 1.60 | — |
| Y2 Factor | — | 0.00 | — |
| Y0 Factor | — | 0.88 | — |
| E Factor | — | 0.37 | — |
| Cg Factor | — | 0.0526 | — |
| Classification | |||
| Official Category Path | — | — | Tapered roller bearings - Single-row - Inch series |
| Official Classification 1 | — | — | Tapered roller bearings / Single-row / Inch series |
| Dimensions | |||
| Width, total | 14.732 mm | — | — |
| Width, inner ring | 14.732 mm | — | — |
| Logistics | |||
| Product net weight | 0.087 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| UNSPSC code | 31171516 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 000000000100048851 | — |
| Official Class Key | — | — | 050-010-020 |
| World Assembly Part Number | — | L44643_L44610 | — |
| Inner Ring Part Number | — | L44643 | — |
| Outer Ring Part Number | — | L44610 | — |
| Drawing Number | — | A-26703 | — |
| Upc | — | 0053893657301 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:47.577 | — |
| 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 | — | TS - Tapered Single | — |
| Construction | — | Single Row Tapered Roller Bearing Assembly | Imperial Series | 1.0000 in Bore | 1.9800 in OD | 0.5600 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| Number Of Rows | — | 1 | — |
| 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 | 0.32 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 50.292 mm |
| T | — | — | 14.224 mm |
| B | — | — | 14.732 mm |
| C | — | — | 10.668 mm |
| Overall Width | — | 16.532 mm | — |
| R(Min.) | — | — | 1.2 mm |
| Radial Rating | — | 9,230 N | — |
| R1(Min.) | — | — | 1.2 mm |
| Axial Rating | — | 5,910 N | — |
| Basic Load Ratings : Cr | — | — | 39.1 kN |
| Dynamic Rating C1 | — | 35,600 N | — |
| Basic Load Ratings : C0R | — | — | 37.0 kN |
| Dynamic Rating C90 | — | 9,230 N | — |
| Fatigue Load Limit : Cu | — | — | 5.15 kN |
| Dynamic Axial Rating Ca90 | — | 5,910 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 7800 min-1 |
| Dynamic Axial Rating Ca1 | — | 22,800 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 10000 min-1 |
| Static Radial Rating C0 | — | 32,900 N | — |
| Load Center Spread : A | — | — | 10.8 mm |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Constant :E | — | — | 0.37 |
| Static Axial Rating C0A | — | 35,900 N | — |
| Axial Load Factors : Y1 | — | — | 1.60 |
| Axial Load Factors : Y0 | — | — | 0.88 |
| Da | — | — | 44.5 mm |
| Db | — | — | 47.0 mm |
| Ra(Max.) | — | — | 1.2 mm |
| Rb(Max.) | — | — | 1.2 mm |
| Mass(Refer.) | — | — | 0.131 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.