| | | Axial displacement Cylindrical industrial roller bearings with industrial flange-less inner or outer rings, NU- and N-designs, and NJ-design bearings manufacturer with one integral flange at the inner ring, can accommodate axial displacement of the shaft with respect to the housing as a result of thermal expansion within certain limits fig c ). As axial displacement takes place within the bearing and not between the ring and shaft or housing bore, there is practically no increase in friction as the bearing rotates. Values for the permissible axial displacement "s" from the normal position of one bearing ring relative to the other are listed in the product table. Influence of operating temperature on bearing material SKF cylindrical roller bearings undergo a special heat treatment. When fitted with a steel or brass cage, they can be used at temperatures of up to +150 °C. Misalignment The ability of single row cylindrical roller bearings to accommodate angular misalignment of the inner ring with respect to the outer ring is limited to a few minutes of arc. The actual values are • 4 minutes of arc for bearings in the narrow 2, 3, 4, 10 and 12 series and • 3 minutes of arc for bearings in the 20, 22 and 23 series. These guideline values apply to non-locating bearings, provided the positions of the shaft and housing axes remain constant. Larger misalignments may be possible but may result in shorter bearing service life. In these | | |