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23938-S-K-MB
Spherical Roller Bearing
Spherical roller bearings 239..-K, main dimensions to DIN 635-2, with tapered bore, taper 1:12
Product information
Metric
Imperial
Main Dimensions & Performance Data
d | 190 mm | Bore diameter |
D | 260 mm | Outside diameter |
B | 52 mm | Width |
Cr | 470,000 N | Basic dynamic load rating, radial |
C0r | 890,000 N | Basic static load rating, radial |
Cur | 64,000 N | Fatigue load limit, radial |
nG | 3,150 1/min | Limiting speed |
nϑr | 1,750 1/min | Reference speed |
≈m | 7.84 kg | Weight |
Mounting dimensions
da min | 198.8 mm | Minimum diameter shaft shoulder |
Da max | 251.2 mm | Maximum diameter of housing shoulder |
ra max | 2 mm | Maximum recess radius |
Dimensions
rmin | 2 mm | Minimum chamfer dimension |
D1 | 240.2 mm | Bore diameter outer ring |
ds | 4.8 mm | Diameter lubrication hole |
ns | 9.5 mm | Width of lubricating groove |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 200 °C | Operating temperature max. |
Calculation factors
e | 0.18 | Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y |
Y1 | 3.66 | Dynamic axial load factor |
Y2 | 5.46 | Dynamic axial load factor |
Y0 | 3.58 | Static axial load factor |
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Bore type | K | Tapered, taper 1:12 |
Cage | MB | Solid brass cage |
Radial internal clearance | CN (Group N) | Normal internal clearance |
Relubrication feature | S | with 3 lubricating holes and groove |
Characteristics