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 machined cage | |
| Bore diameter | d | 25 mm |
| Outside diameter | D | 52 mm |
| Width | B | 30 mm |
| Basic dynamic load rating | C | 31.2 kN |
| Basic static load rating | C0 | 19 kN |
| Fatigue load limit | Pu | 1.25 kN |
| Limiting speed | nG | 12000 r/min |
| Mass | ≈m | 0.27 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 machined cage | |
| Official Classification 1 | Angular contact ball bearings / Matched pair / Tandem / With machined cage |
Technical Data16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 25 mm | |
| D | 52 mm | |
| B | 30 mm | |
| R(Min.) | 1 mm | |
| R1(Min.) | 0.6 mm | |
| Basic Load Ratings : Cr | 31.2 kN | |
| Basic Load Ratings : C0R | 19.0 kN | |
| Fatigue Load Limit : Cu | 1.25 kN | |
| Limiting Speeds(Grease Lub.) | 12000 min-1 | |
| Limiting Speeds(Oil Lub.) | 15000 min-1 | |
| Da(Min.) | 30.5 mm | |
| Db(Min.) | 29.5 mm | |
| Da(Max.) | 46.5 mm | |
| Db(Max.) | 47.5 mm | |
| Ra(Max.) | 1 mm | |
| Mass(Refer.) | 0.270 kg |
