Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Single direction / With flat back faces | |
| Bore diameter | d | 50 mm |
| Outside diameter | D | 78 mm |
| Width | B | 22 mm |
| Fatigue load limit | Pu | 5.05 kN |
| Limiting speed | nG | 2300 r/min |
| Mass | ≈m | 0.39 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 070-010-000 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Thrust ball bearings - Single direction - With flat back faces | |
| Official Classification 1 | Thrust ball bearings / Single direction / With flat back faces |
Technical Data20 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 50 mm | |
| D | 78 mm | |
| T | 22 mm | |
| R(Min.) | 1 mm | |
| Basic Load Ratings Ca | 60.6 kN | |
| Basic Load Ratings C0A | 111 kN | |
| Fatigue Load Limit : Cu | 5.05 kN | |
| Limiting Speeds(Grease Lub.) | 2300 min-1 | |
| Limiting Speeds(Oil Lub.) | 3600 min-1 | |
| D1(Max.) | 78 mm | |
| D1(Min.) | 52 mm | |
| D2 | - mm | |
| D3 | - mm | |
| A | - mm | |
| R | - mm | |
| C | - mm | |
| Da(Min.) | 67 mm | |
| Da(Max.) | 61 mm | |
| Ra(Max.) | 1 mm | |
| Mass(Refer.) | 0.39 kg |

