Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Double-row / TDO type | |
| Bore diameter | d | 320 mm |
| Outside diameter | D | 480 mm |
| Width | B | 121 mm |
| Basic dynamic load rating | C | 1800 kN |
| Basic static load rating | C0 | 2700 kN |
| Fatigue load limit | Pu | 283 kN |
| Limiting speed | nG | 480 r/min |
| Mass | ≈m | 71.6 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 050-020-010 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Tapered roller bearings - Double-row - TDO type | |
| Official Classification 1 | Tapered roller bearings / Double-row / TDO type |
Technical Data21 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 320 mm | |
| D | 480 mm | |
| T | 121 mm | |
| C | 108 mm | |
| R(Min.) | 5 mm | |
| R1(Min.) | 1.5 mm | |
| Basic Load Ratings : Cr | 1800 kN | |
| Basic Load Ratings : C0R | 2700 kN | |
| Fatigue Load Limit : Cu | 283 kN | |
| Limiting Speeds(Grease Lub.) | 480 min-1 | |
| Limiting Speeds(Oil Lub.) | 640 min-1 | |
| Constant E | 0.32 | |
| Axial Load Factors : Y2 | 2.12 | |
| Axial Load Factors : Y3 | 3.15 | |
| Axial Load Factors : Y0 | 2.07 | |
| Da(Min.) | 342 mm | |
| Da(Min.) | 452 mm | |
| Sa(Min.) | 6.5 mm | |
| Ra(Max.) | 4 mm | |
| Rb(Max.) | 1.5 mm | |
| Mass(Refer.) | 71.6 kg |
