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04:12:05 GMT+0000 (Coordinated Universal Time)
QJ248-N2-MPA
Four-point contact bearing
Four point contact bearing QJ2..-N2-MPA, holding grooves, solid brass cage
Replaces
QJ248N2MPA
Main Dimensions & Performance Data
| d | 240 mm | Bore diameter |
| D | 440 mm | Outside diameter |
| B | 72 mm | Width |
| Cr | 690,000 N | Basic dynamic load rating, radial |
| C0r | 1,270,000 N | Basic static load rating, radial |
| Cur | 39,500 N | Fatigue load limit, radial |
| nG | 2,550 1/min | Limiting speed |
| nϑr | 1,250 1/min | Reference speed |
| ≈m | 52.5 kg | Weight |
Mounting dimensions
| da min | 257 mm | Minimum diameter shaft shoulder |
| Da max | 423 mm | Maximum diameter of housing shoulder |
| ra max | 3 mm | Maximum fillet radius |
Dimensions
| rmin | 4 mm | Minimum chamfer dimension |
| D1 | 369 mm | Shoulder diameter outer ring |
| d1 | 313.65 mm | Shoulder diameter inner ring |
| a | 238.1 mm | Distance between the apexes of the pressure cones |
| an | 15 mm | Hight retaining slot |
| bn | 12.5 mm | Width retaining slot |
| rn | 2.5 mm | Radius retaining slot |
45 ° | Angle retaining slot | |
| α | 35 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |