QJ1252-N2-MPA-C3
Four-point contact bearing
Four point contact bearing QJ12..-N2-MPA, holding grooves, solid brass cage
Replaces
QJ1252N2MPA.C3
Description
Metric
Imperial
Main Dimensions & Performance Data
| d | 260 mm | Bore diameter |
| D | 480 mm | Outside diameter |
| B | 90 mm | Width |
| Cr | 760,000 N | Basic dynamic load rating, radial |
| C0r | 1,480,000 N | Basic static load rating, radial |
| Cur | 43,500 N | Fatigue load limit, radial |
| nG | 2,360 1/min | Limiting speed |
| nϑr | 1,210 1/min | Reference speed |
| ≈m | 78 kg | Weight |
Mounting dimensions
| da min | 280 mm | Minimum diameter shaft shoulder |
| Da max | 460 mm | Maximum diameter of housing shoulder |
| ra max | 4 mm | Maximum fillet radius |
Dimensions
| rmin | 5 mm | Minimum chamfer dimension |
| D1 | 398.2 mm | Shoulder diameter outer ring |
| d1 | 342.25 mm | Shoulder diameter inner ring |
| a | 740 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 | 45 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Your current product variant
| Cage | MPA | solid brass cage, outer ring guided |
| Design, bearing outer ring | N2 | two retaining grooves in the outer ring on one side |
| Coating | Without | |
| Tolerance class | PN | Normal (PN) |
| Dimensional / heat stabilization | S1 | Rings dimensional stabilized up to 200° |
| Axial internal clearance | C3 | Group 3 (C3), bigger than CN |
Characteristics
