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| Parameter | TIMKEN303KDFS5000017 × 47 × 14 mm | KOYO303/22R22 × 56 × 16 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 303KDFS50000 | 303/22R |
| Product family | Radial Deep-Groove Ball | Single-row / Metric series |
| Detailed type | Deep groove ball bearings | Tapered roller bearings |
| Series | 300 | — |
| Bore diameterd | 17 mm | 22 mm |
| Outside diameterD | 47 mm | 56 mm |
| WidthB | 14 mm | 16 mm |
| Basic dynamic load ratingC | 13.5 kN | 52.2 kN |
| Basic static load ratingC0 | 6.53 kN | 41.1 kN |
| Fatigue load limitPu | — | 5.95 kN |
| Limiting speednG | — | 7500 r/min |
| Mass≈m | 0.11 kg | 0.216 kg |
| Sealing | Shielded | — |
| Cage | Steel cage | — |
| Calculation Factors | ||
| K Factor | 0.00 | — |
| Y1 Factor | 0.00 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.50 | — |
| E Factor | 0.00 | — |
| Cg Factor | 0.0250 | — |
| Classification | ||
| Official Category Path | — | Tapered roller bearings - Single-row - Metric series |
| Official Classification 1 | — | Tapered roller bearings / Single-row / Metric series |
| Manufacturer Identity | ||
| Material Number | 000000000100198185 | — |
| Official Class Key | — | 050-010-010 |
| World Assembly Part Number | 303KD Z6 FS50000 | — |
| Upc | 0087796046252 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.927 | — |
| Product Identity | ||
| Type Description | Radial Deep-Groove Ball | — |
| Construction | Single Row Deep Groove Ball Bearing | Imperial Series | 0.6693 in Bore | 1.8504 in OD | 0.5510 in Width | Single Shielded | Cylindrical Bore | Steel Cage | C0 Clearance | ISO P0 Tolerance | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 56 mm |
| Overall Width | 0.000 mm | — |
| T | — | 17.25 mm |
| Radial Rating | 15,000 N | — |
| B | — | 16 mm |
| Axial Rating | 0 N | — |
| C | — | 14 mm |
| Dynamic Rating C1 | 13,500 N | — |
| R(Min.) | — | 1.5 mm |
| Dynamic Rating C90 | 0 N | — |
| R1(Min.) | — | 1.5 mm |
| Dynamic Axial Rating Ca90 | 0 N | — |
| Basic Load Ratings : Cr | — | 52.2 kN |
| Dynamic Axial Rating Ca1 | 0 N | — |
| Basic Load Ratings : C0R | — | 41.1 kN |
| Static Radial Rating C0 | 6,530 N | — |
| Fatigue Load Limit : Cu | — | 5.95 kN |
| Extended Dynamic Rating Ce | 15,000 N | — |
| Limiting Speeds(Grease Lub.) | — | 7500 min-1 |
| Static Axial Rating C0A | 0 N | — |
| Limiting Speeds(Oil Lub.) | — | 10000 min-1 |
| Load Center Spread : A | — | 12.2 mm |
| Constant E | — | 0.31 |
| Axial Load Factors : Y1 | — | 1.97 |
| Axial Load Factors : Y0 | — | 1.08 |
| Da(Min.) | — | 47 mm |
| Db(Max.) | — | 32 mm |
| Da(Max.) | — | 47.5 mm |
| Db(Min.) | — | 51 mm |
| Sa(Min.) | — | 2 mm |
| Sb(Min.) | — | 3 mm |
| Ra(Max.) | — | 1.5 mm |
| Rb(Max.) | — | 1.5 mm |
| Mass(Refer.) | — | 0.216 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.