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 / NNU / Tapered type | |
| Bore diameter | d | 320 mm |
| Outside diameter | D | 440 mm |
| Width | B | 118 mm |
| Basic dynamic load rating | C | 1530 kN |
| Basic static load rating | C0 | 2750 kN |
| Fatigue load limit | Pu | 286 kN |
| Limiting speed | nG | 1100 r/min |
| Mass | ≈m | 51.4 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 040-020-020 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Cylindrical roller bearings - Single-row - NNU - Tapered type | |
| Official Classification 1 | Cylindrical roller bearings / Single-row / NNU / Tapered type |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 320 mm | |
| D | 440 mm | |
| B | 118 mm | |
| R(Min.) | 3 mm | |
| Fw | 352 mm | |
| Ew | - mm | |
| Basic Load Ratings : Cr | 1530 kN | |
| Basic Load Ratings : C0R | 2750 kN | |
| Fatigue Load Limit : Cu | 286 kN | |
| Limiting Speeds(Grease Lub.) | 1100 min-1 | |
| Limiting Speeds(Oil Lub.) | 1300 min-1 | |
| Da(Min.) | - mm | |
| Da(Max.) | 348 mm | |
| Db(Min.) | 363 mm | |
| Da(Max.) | 427 mm | |
| Ra(Max.) | 2.5 mm | |
| Mass(Refer.) | 51.4 kg |
