| | | Axial internal clearance NUP-design cylindrical industrial roller bearings, which can locate a shaft axially in both directions, are manufactured with an axial internal clearance as shown in table |2 . The axial internal clearance of NJ-design bearings manufacturer when combined with an HJ angle ring is specified in table |3 . The clearance limits quoted in tables ^ and ^| should be considered as guideline values. When axial internal clearance is measured, the rollers may tilt, causing an enlargement of the axial clearance, which may be as much as • the radial internal clearance of bearings in the 2, 3 and 4 series or • 2/3 of the radial internal clearance for bearings in the 22 and 23 series. | | |