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Table 8.23.1 Bearing Types and Proper Viscosity of Lubricating Oils Bearing type Viscosity at operating temperature Ball bearing, cylindrical roller bearing Tapered roller bearing, spherical roller bearing Spherical Roller Thrust Bearings Remark: 1 mm2/s = 1cSt (centistokes) Over 13 mm2/s Over 20 mm2/s Over 32 mm2/s Table 8.23.2 General Oil Selection Guide Bearing operating temperature (?
Table 8.27 Coefficient of Friction Bearing Types Coefficient of friction (ƒت) Load conditions Single row Deep-groove Ball Bearings Single row Angular Contact Ball Bearings Cylindrical Roller Bearings Tapered Roller Bearings Self-Aligning Ball Bearings Spherical Roller Bearings Thrust Ball Bearings Spherical Roller Thrust Bearings Radial load Axial load P125 8.8 Mounting and Dismounting Rolling bearings have higher accuracy than other parts in most equipment and are often considered to be the most important rotating component.
For rotating inner ring load and indeterminate direction load For rotating outer ring load Class 0, class 6 Class 5, class 4 Table 8.2.2 Bearing Outside Diameter (1) Fits for Radial Bearings (Except for Magneto Bearings) Tolerance class for housing bore Bearing tolerance class For rotating inner ring load For indeterminate direction loads For rotating outer ring load Class 0, class 6 Class 5, class 4 Table 8.3.1 Bearing Bore or Center Washer Bore (1) Fits for Thrust Bearings Bearing tolerance class Tolerance class for shaft O.D.
Axial load only For composite load (spherical roller thrust bearings) Class 0 Table 8.3.2 Bearing Outside Diameter (1) Fits for Thrust Bearings Bearing tolerance class Tolerance class for housing bore Axial load only For composite load (spherical roller thrust bearings) Class 0 Note: (1) These dimensional deviations are based on JIS B 1514.
Table 8.5 Shaft Tolerances for Thrust Bearings Operating conditions Shaft dia
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