230/670-B-K-MB
Spherical roller bearing
Spherical roller bearing 230..-B-K-MB, symmetric 3 ribs
Replaces
230/670BK.MB
Description
Metric
Imperial
Main Dimensions & Performance Data
| d | 670 mm | Bore diameter |
| D | 980 mm | Outside diameter |
| B | 230 mm | Width |
| Cr | 7,200,000 N | Basic dynamic load rating, radial |
| C0r | 15,800,000 N | Basic static load rating, radial |
| Cur | 1,120,000 N | Fatigue load limit, radial |
| nG | 630 1/min | Limiting speed |
| nϑr | 350 1/min | Reference speed |
| ≈m | 590 kg | Weight |
Mounting dimensions
| da min | 698 mm | Minimum diameter shaft shoulder |
| Da max | 952 mm | Maximum diameter of housing shoulder |
| ra max | 6 mm | Maximum recess radius |
| da max | 741 mm | Maximum diameter of shaft shoulder |
| db min | 694 mm | Minimum cavity diameter of the sleeve |
| Ba min | 20 mm | Minimum cavity width of the sleeve |
Dimensions
| rmin | 7.5 mm | Minimum chamfer dimension |
| D1 | 888.7 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 |
Additional information
| H30/670-HG | Adapter sleeve | |
| AH30/670A-H | Withdrawal sleeve |
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 (CN) |
| Relubrication feature | Standard |
Characteristics
