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09:29:39 GMT+0000 (Coordinated Universal Time)
240/670-B-K30-MB
Spherical Roller Bearing
Spherical roller bearing 240..-B-K30-MB, symmetric 3 ribs
Product information
Metric
Imperial
Main Dimensions & Performance Data
d | 670 mm | Bore diameter |
D | 980 mm | Outside diameter |
B | 308 mm | Width |
Cr | 9.000.000 N | Basic dynamic load rating, radial |
C0r | 21.500.000 N | Basic static load rating, radial |
Cur | 1.510.000 N | Fatigue load limit, radial |
nG | 510 1/min | Limiting speed |
nϑr | 239 1/min | Reference speed |
≈m | 787 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 |
Dimensions
rmin | 7,5 mm | Minimum chamfer dimension |
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 | 2,2 | Dynamic axial load factor |
Y2 | 3,27 | Dynamic axial load factor |
Y0 | 2,15 | Static axial load factor |
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Design | B | with fixed central rib |
Bore type | K30 | Tapered, taper 1:30 |
Cage | MB | Solid brass cage |
Radial internal clearance | CN (Group N) | Normal internal clearance |
Relubrication feature | Standard |
Characteristics