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 / NN / Cylindrical bore | |
| Bore diameter | d | 320 mm |
| Outside diameter | D | 480 mm |
| Width | B | 121 mm |
| Basic dynamic load rating | C | 1690 kN |
| Basic static load rating | C0 | 2670 kN |
| Fatigue load limit | Pu | 283 kN |
| Limiting speed | nG | 980 r/min |
| Mass | ≈m | 76.4 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 040-020-010 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Cylindrical roller bearings - Single-row - NN - Cylindrical bore | |
| Official Classification 1 | Cylindrical roller bearings / Single-row / NN / Cylindrical bore |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 320 mm | |
| D | 480 mm | |
| B | 121 mm | |
| R(Min.) | 4 mm | |
| Fw | - mm | |
| Ew | 438 mm | |
| Basic Load Ratings : Cr | 1690 kN | |
| Basic Load Ratings : C0R | 2670 kN | |
| Fatigue Load Limit : Cu | 283 kN | |
| Limiting Speeds(Grease Lub.) | 980 min-1 | |
| Limiting Speeds(Oil Lub.) | 1200 min-1 | |
| Da(Min.) | 442 mm | |
| Da(Max.) | - mm | |
| Db(Min.) | - mm | |
| Da(Max.) | 464 mm | |
| Ra(Max.) | 3 mm | |
| Mass(Refer.) | 76.4 kg |
