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 / NU | |
| Bore diameter | d | 200 mm |
| Outside diameter | D | 420 mm |
| Width | B | 80 mm |
| Basic dynamic load rating | C | 1220 kN |
| Basic static load rating | C0 | 1270 kN |
| Fatigue load limit | Pu | 145 kN |
| Limiting speed | nG | 1200 r/min |
| Mass | ≈m | 56.2 kg |
Manufacturer Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | KOYO | |
| Official Class Key | 040-010-000 |
Classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official Category Path | Cylindrical roller bearings - Single-row - NU | |
| Official Classification 1 | Cylindrical roller bearings / Single-row / NU |
Technical Data26 parameters
| Parameter | Symbol | Value |
|---|---|---|
| d | 200 mm | |
| D | 420 mm | |
| B | 80 mm | |
| R(Min.) | 5 mm | |
| R1(Min.) | 5 mm | |
| Fw | 260 mm | |
| Ew | - mm | |
| Basic Load Ratings : Cr | 1220 kN | |
| Basic Load Ratings : C0R | 1270 kN | |
| Fatigue Load Limit : Cu | 145 kN | |
| Limiting Speeds(Grease Lub.) | 1200 min-1 | |
| Limiting Speeds(Oil Lub.) | 1700 min-1 | |
| Sd1 | - mm | |
| B1 | - mm | |
| B2 | - mm | |
| Da(Min.) | - mm | |
| Db(Min.) | 220 mm | |
| Db(Max.) | 254 mm | |
| Dc(Min.) | - mm | |
| Dd(Min.) | - mm | |
| Da(Max.) | 400 mm | |
| Db(Max.) | - mm | |
| Db(Min.) | - mm | |
| Ra(Max.) | 4 mm | |
| Rb(Max.) | 4 mm | |
| Mass(Refer.) | 56.2 kg |
