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 / Back-to-back / With machined cage | |
| Bore diameter | d | 140 mm |
| Outside diameter | D | 250 mm |
| Width | B | 84 mm |
| Basic dynamic load rating | C | 483 kN |
| Basic static load rating | C0 | 508 kN |
| Fatigue load limit | Pu | 18.8 kN |
| Limiting speed | nG | 3200 r/min |
| Mass | ≈m | 15.5 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 020-020-010 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Angular contact ball bearings - Matched pair - Back-to-back - With machined cage | |
| Official Classification 1 | Angular contact ball bearings / Matched pair / Back-to-back / With machined cage |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 140 mm | |
| D | 250 mm | |
| B | 84 mm | |
| R(Min.) | 3 mm | |
| R1(Min.) | 1.1 mm | |
| Basic Load Ratings : Cr | 483 kN | |
| Basic Load Ratings : C0R | 508 kN | |
| Fatigue Load Limit : Cu | 18.8 kN | |
| Factor : F0 | 14.8 | |
| Limiting Speeds(Grease Lub.) | 3200 min-1 | |
| Limiting Speeds(Oil Lub.) | 4300 min-1 | |
| Load Center Spread : A | 94.2 mm | |
| Da(Min.) | 154 mm | |
| Db(Max.) | 243 mm | |
| Ra(Max.) | 2.5 mm | |
| Rb(Max.) | 1 mm | |
| Mass(Refer.) | 15.5 kg |
