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230/850-B-K-MB
Spherical Roller Bearing
Spherical roller bearing 230..-B-K-MB, symmetric 3 ribs
Replaces
230/850BK.MB
Main Dimensions & Performance Data
| d | 850 mm | Bore diameter |
| D | 1.220 mm | Outside diameter |
| B | 272 mm | Width |
| Cr | 10.300.000 N | Basic dynamic load rating, radial |
| C0r | 23.800.000 N | Basic static load rating, radial |
| Cur | 1.570.000 N | Fatigue load limit, radial |
| nG | 490 1/min | Limiting speed |
| nϑr | 255 1/min | Reference speed |
| ≈m | 1.025 kg | Weight |
Mounting dimensions
| da min | 878 mm | Minimum diameter shaft shoulder |
| Da max | 1.192 mm | Maximum diameter of housing shoulder |
| ra max | 6 mm | Maximum recess radius |
Dimensions
| rmin | 7,5 mm | Minimum chamfer dimension |
| D1 | 1.113,5 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 | 0,21 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
| Y1 | 3,24 | Dynamic axial load factor |
| Y2 | 4,82 | Dynamic axial load factor |
| Y0 | 3,16 | Static axial load factor |
Your current product variant
| Design | B | With fixed central rib |
| Bore type | K | Tapered, taper 1:12 |
| Cage | MB | Solid brass cage |
| Radial internal clearance | CN (Group N) | Normal internal clearance |
| Relubrication feature | Standard |
Characteristics
