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Main Dimensions & Performance Data
| d1 | 400 mm | Bore Diameter |
0.007 mm | Bore diameter upper tolerance | |
-0.029 mm | Bore diameter lower tolerance | |
| Da | 500 mm | Outside Diameter |
0 mm | Outside diameter upper tolerance | |
-0.04 mm | Outside diameter lower tolerance | |
| H | 46 mm | Height of the assembled bearing |
| hi | 46 mm | heigth inner ring |
0.15 mm | Width upper tolerance | |
-0.15 mm | Width lower tolerance | |
| ≈m | 23.221 kg | Weight |
Dimensions
| Di | 451 mm | Inner diameter outer ring |
| DM | 450 mm | rolling element pitch circle diameter |
| da | 449 mm | outer diameter inner ring |
| h | 46 mm | height of individual ring |
0 mm | Height of individual ring upper tolerance | |
-0.05 mm | Height of individual ring lower tolerance | |
| rmin | 2.1 mm | chamfer dimension |
| S | 2.5 mm | diameter of lubrication hole |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 80 °C | Operating temperature max. |
Calculation factors
0.03 mm | Running accuracy, radial | |
0.01 mm | Running accuracy, axial | |
| Sr min | 0.01 mm | Minimum radial bearing clearance, at standard bearing clearance |
| Sr max | 0.05 mm | Maximum radial bearing clearance, at standard bearing clearance |
| Sk min | 0.02 mm | Minimum axial tilting clearance, at standard bearing clearance |
| Sk max | 0.1 mm | Maximum axial tilting clearance, at standard bearing clearance |
| Ca | 385,000 N | Basic dynamic load rating, axial |
| C0a | 1,660,000 N | Basic static load rating, axial |
| Cr | 275,000 N | Basic dynamic load rating, radial (for radial load only) |
| C0r | 810,000 N | Basic static load rating, radial (for radial load only) |
| NG oil | 340 1/min | Limiting speed for oil lubrication with normal clearance |
| NG Grease | 170 1/min | Limiting speed for grease lubrication with normal clearance |
61880 | Dimensions identical to ISO dimension series 18 |