SKF QJ 344 N2MA 四点角接触轴承 天津SKF特约销售处

QJ 344 N2MA
Dimensions

|
| d | | 220 | mm |
| D | | 460 | mm |
| B | | 88 | mm |
| d1 | ≈ | 308 | mm |
| D1 | ≈ | 372 | mm |
| a | | 238 | mm |
| h | | 15 | mm |
| b | | 12.5 | mm |
| r0 | | 2.5 | mm |
| r1,2 | min. | 5 | mm |
Abutment
dimensions

|
| da | min. | 242 | mm |
| Da | max. | 438 | mm |
| ra | max. | 4 | mm |
Calculation
data
| Basic dynamic load rating | C | | 780 | kN |
| Basic static load rating | C0 | | 1400 | kN |
| Fatigue load limit | Pu | | 32 | kN |
| Reference speed | | | 1500 | r/min |
| Limiting speed | | | 2400 | r/min |
| Calculation factor | ka | | 1.1 | |
| Calculation factor | e | | 0.95 | |
| Calculation factor | X | | 0.6 | |
| Calculation factor | Y0 | | 0.58 | |
| Calculation factor | Y1 | | 0.66 | |
| Calculation factor | Y2 | | 1.07 | |
Mass
