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| Parameter | TIMKEN122WD2NBR110 × 175 × 35 mm | KOYO122FC85570610 × 850 × 570 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 122WD2NBR | 122FC85570 |
| Product family | Radial Deep-Groove Ball | Four-row cylindrical roller bearings |
| Detailed type | Deep groove ball bearings | Rolling mill roll neck bearings |
| Series | 100 | — |
| Bore diameterd | 110 mm | 610 mm |
| Outside diameterD | 175 mm | 850 mm |
| WidthB | 35 mm | 570 mm |
| Basic dynamic load ratingC | 105 kN | 14100 kN |
| Basic static load ratingC0 | 101 kN | 34900 kN |
| Fatigue load limitPu | — | 2990 kN |
| Mass≈m | 3.04 kg | 1040 kg |
| Sealing | Shielded | — |
| Cage | Brass 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 | 0.0694 | — |
| Classification | ||
| Official Category Path | — | Rolling mill roll neck bearings - Four-row cylindrical roller bearings |
| Official Classification 1 | — | Rolling mill roll neck bearings / Four-row cylindrical roller bearings |
| Manufacturer Identity | ||
| Material Number | 000000000100023965 | — |
| Official Class Key | — | 140-010-000 |
| World Assembly Part Number | 122WD2NBR | — |
| Upc | 0087796066410 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.757 | — |
| Product Identity | ||
| Type Description | Radial Deep-Groove Ball | — |
| Construction | Single Row Deep Groove Ball Bearing | Imperial Series | 4.3307 in Bore | 6.8898 in OD | 1.3780 in Width | Single Shielded | Cylindrical Bore | Brass Cage | C0 Clearance | ISO P0 Tolerance | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 850 mm |
| B | — | 570 mm |
| Overall Width | 0.000 mm | — |
| C | — | 570 mm |
| Radial Rating | 116,000 N | — |
| Fw | — | 670 mm |
| Axial Rating | 0 N | — |
| R(Min.) | — | 6 mm |
| Dynamic Rating C1 | 105,000 N | — |
| R1(Min.) | — | 6 mm |
| Dynamic Rating C90 | 0 N | — |
| Basic Load Ratings : Cr | — | 14100 kN |
| Dynamic Axial Rating Ca90 | 0 N | — |
| Basic Load Ratings : C0R | — | 34900 kN |
| Dynamic Axial Rating Ca1 | 0 N | — |
| Fatigue Load Limit : Cu | — | 2990 kN |
| Static Radial Rating C0 | 101,000 N | — |
| Da(Min.) | — | 790 mm |
| Extended Dynamic Rating Ce | 116,000 N | — |
| Da(Max.) | — | 822 mm |
| Static Axial Rating C0A | 0 N | — |
| Ra(Max.) | — | 5 mm |
| Rb(Max.) | — | 5 mm |
| Mass(Refer.) | — | 1040 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.