Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Four-row cylindrical roller bearings | |
| Bore diameter | d | 290 mm |
| Outside diameter | D | 420 mm |
| Width | B | 300 mm |
| Basic dynamic load rating | C | 3320 kN |
| Basic static load rating | C0 | 6960 kN |
| Fatigue load limit | Pu | 722 kN |
| Mass | ≈m | 138 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 140-010-000 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| 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 |
Technical Data15 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 290 mm | |
| D | 420 mm | |
| B | 300 mm | |
| C | 300 mm | |
| Fw | 327 mm | |
| R(Min.) | 3 mm | |
| R1(Min.) | 3 mm | |
| Basic Load Ratings : Cr | 3320 kN | |
| Basic Load Ratings : C0R | 6960 kN | |
| Fatigue Load Limit : Cu | 722 kN | |
| Da(Min.) | 387 mm | |
| Da(Max.) | 406 mm | |
| Ra(Max.) | 2.5 mm | |
| Rb(Max.) | 2.5 mm | |
| Mass(Refer.) | 138 kg |