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 / TDI type | |
| Bore diameter | d | 320 mm |
| Outside diameter | D | 480 mm |
| Width | B | 121 mm |
| Basic dynamic load rating | C | 1830 kN |
| Basic static load rating | C0 | 3180 kN |
| Fatigue load limit | Pu | 322 kN |
| Limiting speed | nG | 470 r/min |
| Mass | ≈m | 77.8 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 050-020-020 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Tapered roller bearings - Double-row - TDI type | |
| Official Classification 1 | Tapered roller bearings / Double-row / TDI type |
Technical Data22 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 320 mm | |
| D | 480 mm | |
| B | 121 mm | |
| T | 121 mm | |
| R(Min.) | 4 mm | |
| R1(Min.) | 5 mm | |
| Basic Load Ratings : Cr | 1830 kN | |
| Basic Load Ratings : C0R | 3180 kN | |
| Fatigue Load Limit : Cu | 322 kN | |
| Limiting Speeds(Grease Lub.) | 470 min-1 | |
| Limiting Speeds(Oil Lub.) | 630 min-1 | |
| Constant E | 0.26 | |
| Axial Load Factors : Y2 | 2.55 | |
| Axial Load Factors : Y3 | 3.80 | |
| Axial Load Factors : Y0 | 2.50 | |
| Da(Max.) | 368 mm | |
| Da(Max.) | 462 mm | |
| Da(Min.) | 434 mm | |
| Sa(Min.) | 6 mm | |
| Ra(Max.) | 3 mm | |
| Rb(Max.) | 4 mm | |
| Mass(Refer.) | 77.8 kg |
