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Main Dimensions & Performance Data
| d | 50 mm | Bore diameter |
0 mm | Bore diameter upper tolerance | |
-0.005 mm | Bore diameter lower tolerance | |
| D | 90 mm | Outside diameter |
0 mm | Outside diameter upper tolerance | |
-0.01 mm | Outside diameter lower tolerance | |
| B | 68 mm | Width |
0 mm | Width upper tolerance | |
-0.5 mm | Width lower tolerance | |
| Ca | 83,000 N | Basic dynamic load rating, axial |
| C0a | 250,000 N | Basic static load rating, axial |
| Cua | 15,300 N | Fatigue load limit, axial |
| nG Grease | 3,200 1/min | Limiting speed for grease lubrication |
| nϑ | 1,500 1/min | Thermally safe operating speed |
| MR | 1.35 Nm | Bearing frictional torque |
| ≈m | 1.842 kg | Weight |
Mounting dimensions
| Da max | 82 mm | Maximum diameter of housing |
| da min | 63 mm | Minimum diameter shaft |
Dimensions
| d1 | 72 mm | Rib diameter inner ring |
| rmin | 0.3 mm | Minimum chamfer dimension |
| r1 min | 0.6 mm | Minimum chamfer dimension |
| α | 60 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
Additional information
| caL | 2,200 N/µm | Rigidity axial |
| ckL | 2,250 Nm/mrad | Tilting rigidity |
| Mm | 10.48 kg*cm2 | Mass moment of inertia |
2.5 µm | Axial runout | |
ZMA50/75 | Recommended INA precision locknut for radial locking | |
AM50 | Recommended INA precision locknut for axial locking | |
| MA | 85 Nm | Tightening torque for the recommended INA precision locknut |
16,280 N | Required locknut force axial |
Your current product variant
| Sealing | 2RS | Contact lip seals on both sides |
| Tolerance class | Standard | |
| Number of bearings | 2AP | Axial angular contact ball bearings, matched pair |