IBC Cylindrical Roller Bearings - Spekuma Kullager AB

Thus, a support of the ribs on the complete height is re -
commendable. Please notice that with very strong bending
of the shaft bending fatigue stress can appear, caused by
the support of the ribs.
Thus, e.g., the diameter of the shaft shoulder arises for the
rib on the inner ring as follows:
d as = 0.5 • (d 1 + F) [4.5]
d as recommended diameter of shaft shoulder [mm]
d 1 diameter of inner ring rib [mm]
F diameter of inner ring track [mm]
If skewing between inner ring and outer ring occurs for
more than one angular minute, then this causes an essential
change of the force introduction ratios of the ribs. This
may cause loss of the included safety factor, resulting in
lower axial loads than permitted. In these cases please
contact our technical consultation teams.
30 IBC WÄLZLAGER GMBH