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 | Matched pair / Tandem / With pressed cage | |
| Bore diameter | d | 80 mm |
| Outside diameter | D | 170 mm |
| Width | B | 78 mm |
| Basic dynamic load rating | C | 321 kN |
| Basic static load rating | C0 | 255 kN |
| Fatigue load limit | Pu | 16.8 kN |
| Limiting speed | nG | 4100 r/min |
| Mass | ≈m | 7.7 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 020-020-030 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Angular contact ball bearings - Matched pair - Tandem - With pressed cage | |
| Official Classification 1 | Angular contact ball bearings / Matched pair / Tandem / With pressed cage |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 80 mm | |
| D | 170 mm | |
| B | 78 mm | |
| R(Min.) | 2.1 mm | |
| R1(Min.) | 1.1 mm | |
| Basic Load Ratings : Cr | 321 kN | |
| Basic Load Ratings : C0R | 255 kN | |
| Fatigue Load Limit : Cu | 16.8 kN | |
| Factor : F0 | 13.5 | |
| Limiting Speeds(Grease Lub.) | 4100 min-1 | |
| Limiting Speeds(Oil Lub.) | 5500 min-1 | |
| Da(Min.) | 92 mm | |
| Db(Min.) | 87 mm | |
| Da(Max.) | 158 mm | |
| Db(Max.) | 163 mm | |
| Ra(Max.) | 2 mm | |
| Mass(Refer.) | 7.70 kg |
