228/710-MB
Spherical roller bearing
Spherical roller bearing 228..-MB, symmetric 3 ribs
Replaces
228/710MB
Description
Metric
Imperial
Main Dimensions & Performance Data
| d | 710 mm | Bore diameter |
| D | 870 mm | Outside diameter |
| B | 95 mm | Width |
| Cr | 2,390,000 N | Basic dynamic load rating, radial |
| C0r | 6,200,000 N | Basic static load rating, radial |
| Cur | 530,000 N | Fatigue load limit, radial |
| nG | 930 1/min | Limiting speed |
| ≈m | 121.8 kg | Weight |
Mounting dimensions
| da min | 724.6 mm | Minimum diameter shaft shoulder |
| Da max | 855.4 mm | Maximum diameter of housing shoulder |
| ra max | 3 mm | Maximum recess radius |
Dimensions
| rmin | 4 mm | Minimum chamfer dimension |
| D1 | 827.4 mm | Bore diameter outer ring |
| ds | 8 mm | Diameter lubrication hole |
| ns | 15 mm | Width of lubricating groove |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Calculation factors
| e | 0.09 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y1 | 7.36 | Dynamic axial load factor |
| Y2 | 10.95 | Dynamic axial load factor |
| Y0 | 7.19 | Static axial load factor |
Your current product variant
| Bore type | Z | Cylindrical |
| Cage | MB | Solid brass cage |
| Radial internal clearance | CN | Group N (CN) |
| Relubrication feature | Standard |
