616 Ball and roller bearing internal clearance

Internal bearing clearance refers to the slackness between the rolling elements and the inner and outer raceways they roll between. This clearance is measured by the free movement of one raceway ring relative to the other ring with the rolling elements in between (Fig. 6.5). For ball and cylindrical (parallel) roller bearings, the radial or diametrical clearance is measured perpendicular to the axis of the bearing. Deep groove ball bearings also have axial clearance measured parallel to the axis of the bearing. Cylindrical (parallel) roller bearings without inner and outer ring end flanges do not have axial clearance. Single row angular contact bearings and

dq = do - dl
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