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CUSTOM / 08 MAX
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| Parameter | TIMKEN128WBR140 × 220 × 36 mm | KOYO128FC88600640 × 880 × 600 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | TIMKEN | KOYO |
| Designation | 128WBR | 128FC88600 |
| 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 | 140 mm | 640 mm |
| Outside diameterD | 220 mm | 880 mm |
| WidthB | 36 mm | 600 mm |
| Basic dynamic load ratingC | 147 kN | 16100 kN |
| Basic static load ratingC0 | 156 kN | 40800 kN |
| Fatigue load limitPu | — | 3400 kN |
| Mass≈m | 5.24 kg | 1130 kg |
| Sealing | Open | — |
| 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 | 0.0809 | — |
| 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 | 000000000100024285 | — |
| Official Class Key | — | 140-010-000 |
| World Assembly Part Number | 128WBR | — |
| Upc | 0087796066458 | — |
| 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 | 5.5118 in Bore | 8.6614 in OD | 1.4173 in Width | Open | Cylindrical Bore | Brass Cage | C0 Clearance | ISO P0 Tolerance | — |
| Number Of Rows | 1 | — |
| Tapered Bore | N | — |
| Technical Data | ||
| d | — | 880 mm |
| B | — | 600 mm |
| Overall Width | 0.000 mm | — |
| C | — | 600 mm |
| Radial Rating | 163,000 N | — |
| Fw | — | 700 mm |
| Axial Rating | 0 N | — |
| R(Min.) | — | 6 mm |
| Dynamic Rating C1 | 147,000 N | — |
| R1(Min.) | — | 6 mm |
| Dynamic Rating C90 | 0 N | — |
| Basic Load Ratings : Cr | — | 16100 kN |
| Dynamic Axial Rating Ca90 | 0 N | — |
| Basic Load Ratings : C0R | — | 40800 kN |
| Dynamic Axial Rating Ca1 | 0 N | — |
| Fatigue Load Limit : Cu | — | 3400 kN |
| Static Radial Rating C0 | 156,000 N | — |
| Da(Min.) | — | 824 mm |
| Extended Dynamic Rating Ce | 163,000 N | — |
| Da(Max.) | — | 852 mm |
| Static Axial Rating C0A | 0 N | — |
| Ra(Max.) | — | 5 mm |
| Rb(Max.) | — | 5 mm |
| Mass(Refer.) | — | 1130 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.