230/630-B-MB
Spherical roller bearing
Spherical roller bearing 230..-B-MB, symmetric 3 ribs
Replaces
230/630B.MB
Description
Metric
Imperial
Main Dimensions & Performance Data
| d | 630 mm | Bore diameter |
| D | 920 mm | Outside diameter |
| B | 212 mm | Width |
| Cr | 6,300,000 N | Basic dynamic load rating, radial |
| C0r | 13,800,000 N | Basic static load rating, radial |
| Cur | 910,000 N | Fatigue load limit, radial |
| nG | 680 1/min | Limiting speed |
| nϑr | 380 1/min | Reference speed |
| ≈m | 488 kg | Weight |
Mounting dimensions
| da min | 658 mm | Minimum diameter shaft shoulder |
| Da max | 892 mm | Maximum diameter of housing shoulder |
| ra max | 6 mm | Maximum recess radius |
Dimensions
| rmin | 7.5 mm | Minimum chamfer dimension |
| D1 | 834.3 mm | Bore diameter outer ring |
| ds | 12.5 mm | Diameter lubrication hole |
| ns | 23.5 mm | Width of lubricating groove |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Calculation factors
| e | 0.22 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y1 | 3.01 | Dynamic axial load factor |
| Y2 | 4.48 | Dynamic axial load factor |
| Y0 | 2.94 | Static axial load factor |
Your current product variant
| Design | B | with fixed central rib |
| Bore type | Z | Cylindrical |
| Cage | MB | Solid brass cage |
| Radial internal clearance | CN | Group N (CN) |
| Relubrication feature | Standard |
