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 | 80 mm |
| Outside diameter | D | 140 mm |
| Width | B | 78 mm |
| Basic dynamic load rating | C | 434 kN |
| Basic static load rating | C0 | 542 kN |
| Fatigue load limit | Pu | 83.1 kN |
| Limiting speed | nG | 2200 r/min |
| Mass | ≈m | 4.71 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 | 80 mm | |
| D | 140 mm | |
| T | 78 mm | |
| C | 63.5 mm | |
| R(Min.) | 2 mm | |
| R1(Min.) | 0.6 mm | |
| Basic Load Ratings : Cr | 434 kN | |
| Basic Load Ratings : C0R | 542 kN | |
| Fatigue Load Limit : Cu | 83.1 kN | |
| Limiting Speeds(Grease Lub.) | 2200 min-1 | |
| Limiting Speeds(Oil Lub.) | 2900 min-1 | |
| Constant E | 0.42 | |
| Axial Load Factors : Y2 | 1.61 | |
| Axial Load Factors : Y3 | 2.39 | |
| Axial Load Factors : Y0 | 1.57 | |
| Da(Min.) | 92 mm | |
| Da(Min.) | 134 mm | |
| Sa(Min.) | 7 mm | |
| Ra(Max.) | 2 mm | |
| Rb(Max.) | 0.6 mm | |
| Mass(Refer.) | 4.71 kg |
