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 | Single-row / Metric series | |
| Bore diameter | d | 28 mm |
| Outside diameter | D | 58 mm |
| Width | B | 19 mm |
| Basic dynamic load rating | C | 56.1 kN |
| Basic static load rating | C0 | 54.1 kN |
| Fatigue load limit | Pu | 7.5 kN |
| Limiting speed | nG | 7100 r/min |
| Mass | ≈m | 0.255 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 050-010-010 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Tapered roller bearings - Single-row - Metric series | |
| Official Classification 1 | Tapered roller bearings / Single-row / Metric series |
Technical Data25 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 28 mm | |
| D | 58 mm | |
| T | 20.25 mm | |
| B | 19 mm | |
| C | 16 mm | |
| R(Min.) | 1 mm | |
| R1(Min.) | 1 mm | |
| Basic Load Ratings : Cr | 56.1 kN | |
| Basic Load Ratings : C0R | 54.1 kN | |
| Fatigue Load Limit : Cu | 7.50 kN | |
| Limiting Speeds(Grease Lub.) | 7100 min-1 | |
| Limiting Speeds(Oil Lub.) | 9400 min-1 | |
| Load Center Spread : A | 17.0 mm | |
| Constant E | 0.55 | |
| Axial Load Factors : Y1 | 1.10 | |
| Axial Load Factors : Y0 | 0.60 | |
| Da(Min.) | 45 mm | |
| Db(Max.) | 33 mm | |
| Da(Max.) | 52.5 mm | |
| Db(Min.) | 55 mm | |
| Sa(Min.) | 3 mm | |
| Sb(Min.) | 4 mm | |
| Ra(Max.) | 1 mm | |
| Rb(Max.) | 1 mm | |
| Mass(Refer.) | 0.255 kg |