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| Parameter | TIMKEN140RU51 R3140 × 220 × 36 mm | KOYO140FC98700700 × 980 × 700 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 140RU51 R3 | 140FC98700 |
| Product family | Cylindrical 1-Row | Four-row cylindrical roller bearings |
| Detailed type | Cylindrical roller bearings | Rolling mill roll neck bearings |
| Series | EX27530 | — |
| Bore diameterd | 140 mm | 700 mm |
| Outside diameterD | 220 mm | 980 mm |
| WidthB | 36 mm | 700 mm |
| Basic dynamic load ratingC | 274 kN | 19100 kN |
| Basic static load ratingC0 | 308 kN | 48200 kN |
| Fatigue load limitPu | — | 3940 kN |
| Mass≈m | 5.1 kg | 1680 kg |
| Sealing | Open | — |
| Cage | Window Brass cage | — |
| Calculation Factors | ||
| K Factor | 0.00 | — |
| Y1 Factor | 0.00 | — |
| Y2 Factor | 0.00 | — |
| Y0 Factor | 0.00 | — |
| E Factor | 0.00 | — |
| Cg Factor | 0.1048 | — |
| 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 | 000000000100180343 | — |
| Official Class Key | — | 140-010-000 |
| World Assembly Part Number | 140RU51 | — |
| Inner Ring Part Number | 140ARUT51 | — |
| Outer Ring Part Number | 140ERUT51 | — |
| Drawing Number | M919599 | — |
| Upc | 0087796020900 | — |
| Official Source System | CORE BP - DS DF | — |
| Official Last Run | 2026-08-23T20:02:47.76 | — |
| Product Identity | ||
| Type Description | Cylindrical 1-Row | — |
| Construction | Single Row Cylindrical Roller Bearing | Imperial Series | 5.5118 in Bore | 8.6614 in OD | 1.4173 in Width | Open | Cylindrical Bore | Machined Window Brass Cage | R3 Clearance | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 980 mm |
| B | — | 700 mm |
| C | — | 700 mm |
| Fw | — | 774 mm |
| R(Min.) | — | 6 mm |
| Overall Width | 0.000 mm | — |
| R1(Min.) | — | 6 mm |
| Radial Rating | 274,000 N | — |
| Basic Load Ratings : Cr | — | 19100 kN |
| Axial Rating | 0 N | — |
| Basic Load Ratings : C0R | — | 48200 kN |
| Dynamic Rating C1 | 274,000 N | — |
| Fatigue Load Limit : Cu | — | 3940 kN |
| Dynamic Rating C90 | 0 N | — |
| Da(Min.) | — | 914 mm |
| Dynamic Axial Rating Ca90 | 0 N | — |
| Da(Max.) | — | 952 mm |
| Dynamic Axial Rating Ca1 | 0 N | — |
| Ra(Max.) | — | 5 mm |
| Static Radial Rating C0 | 308,000 N | — |
| Rb(Max.) | — | 5 mm |
| Extended Dynamic Rating Ce | 0 N | — |
| Mass(Refer.) | — | 1680 kg |
| Static Axial Rating C0A | 0 N | — |
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.