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17:11:17 GMT+0000 (Coordinated Universal Time)
QJ1984-N2-MPA
Four-point contact bearing
Four point contact bearing QJ19..-N2-MPA, holding grooves, solid brass cage
Replaces
QJ1984N2MPA
Main Dimensions & Performance Data
| d | 420 mm | Bore diameter |
| D | 560 mm | Outside diameter |
| B | 65 mm | Width |
| Cr | 620,000 N | Basic dynamic load rating, radial |
| C0r | 1,390,000 N | Basic static load rating, radial |
| Cur | 35,000 N | Fatigue load limit, radial |
| nG | 1,880 1/min | Limiting speed |
| nϑr | 810 1/min | Reference speed |
| ≈m | 47.5 kg | Weight |
Mounting dimensions
| da min | 434.6 mm | Minimum diameter shaft shoulder |
| Da max | 545.4 mm | Maximum diameter of housing shoulder |
| ra max | 3 mm | Maximum fillet radius |
Dimensions
| rmin | 4 mm | Minimum chamfer dimension |
| D1 | 512.2 mm | Shoulder diameter outer ring |
| d1 | 470.35 mm | Shoulder diameter inner ring |
| a | 343.1 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. |