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230/630-B-MB-J30PC
Spherical Roller Bearing
Spherical roller bearing 230..-B-MB, symmetric 3 ribs
Remanufacturable


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 |
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Design | B | With fixed central rib |
Bore type | Z | Cylindrical |
Cage | MB | Solid brass cage |
Radial internal clearance | CN (Group N) | Normal internal clearance |
Relubrication feature | Standard |


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