Description
Metric
Imperial
Main Dimensions & Performance Data
| d1 | 340 mm | Bore Diameter |
| 0.007 mm | Bore diameter upper tolerance | |
| -0.029 mm | Bore diameter lower tolerance | |
| Da | 420 mm | Outside Diameter |
| 0 mm | Outside diameter upper tolerance | |
| -0.04 mm | Outside diameter lower tolerance | |
| H | 38 mm | Height of the assembled bearing |
| hi | 38 mm | heigth inner ring |
| 0.14 mm | Width upper tolerance | |
| -0.14 mm | Width lower tolerance | |
| ≈m | 12.92 kg | Weight |
Dimensions
| Di | 380.8 mm | Inner diameter outer ring |
| DM | 380 mm | rolling element pitch circle diameter |
| da | 379.2 mm | outer diameter inner ring |
| h | 38 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
| 0.025 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 | 0.04 mm | Maximum radial bearing clearance, at standard bearing clearance |
| Sk min | 0.02 mm | Minimum axial tilting clearance, at standard bearing clearance |
| Sk max | 0.08 mm | Maximum axial tilting clearance, at standard bearing clearance |
| RLOmax | 0.005 mm | Low clearance: Radial clearance |
| RLOmax | 0.01 mm | Low clearance: Preload |
| Ca | 265,000 N | Basic dynamic load rating, axial |
| C0a | 1,130,000 N | Basic static load rating, axial |
| Cr | 187,000 N | Basic dynamic load rating, radial (for radial load only) |
| C0r | 550,000 N | Basic static load rating, radial (for radial load only) |
| NG oil | 400 1/min | Limiting speed for oil lubrication with normal clearance |
| NG Grease | 200 1/min | Limiting speed for grease lubrication with normal clearance |
| 61868 | Dimensions identical to ISO dimension series 18 |
Downloads:
Characteristics
