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231/670-B-K-MB
Spherical Roller Bearing
Spherical roller bearing 231..-B-K-MB, symmetric 3 ribs
Remanufacturable


Main Dimensions & Performance Data
d | 670 mm | Bore diameter |
D | 1,090 mm | Outside diameter |
B | 336 mm | Width |
Cr | 11,000,000 N | Basic dynamic load rating, radial |
C0r | 23,900,000 N | Basic static load rating, radial |
Cur | 1,600,000 N | Fatigue load limit, radial |
nG | 495 1/min | Limiting speed |
nϑr | 230 1/min | Reference speed |
≈m | 1,230 kg | Weight |
Mounting dimensions
da min | 702 mm | Minimum diameter shaft shoulder |
Da max | 1,058 mm | Maximum diameter of housing shoulder |
ra max | 6 mm | Maximum recess radius |
Dimensions
rmin | 7.5 mm | Minimum chamfer dimension |
D1 | 948.2 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 | 0.31 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
Y1 | 2.21 | Dynamic axial load factor |
Y2 | 3.29 | Dynamic axial load factor |
Y0 | 2.16 | 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
Operating conditions for bearing 231/670-B-K-MB
In work for 231/670-B-K-MB
CO₂e caused by friction during operation
Comprehensive information with immediate calculations of the CO2e emissions of our rotative products in various application scenarios.

Load
*MandatoryMotion Influences
*Mandatory Preset calculation parameters
Arcanol MULTI2
Greasenormal cleanliness
Contamination70°C
Operating Temperature20°C
Ambient Temperature Choose your calculations
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CO₂e emissions
For Production info_outline
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Rating life
Total Rating Life (Lh10)
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Static safety (S0)
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