Bearing Shells
Inspection / Evaluate
A5.05. 02.03.07.01
M20
en / 30.09.2010 IB001449 2/4
02
Replacement
Fig. 4 - The contact reflection shows the presence of heavy pressure on one bearing edge with
scratches in the sliding surface made from aluminium alloy. This bearing shell is not
reusable. The cause for this damage has to be determined and eliminated.
Fig. 5 - The contact reflection shows a large area of damage with various degrees of scratching. This
bearing shell is not reusable. The cause for this slide bearing damage has to be
determined and eliminated. Further bearing shells are to be inspected.
Fig. 6 - The load bearing area of the bearing shell shows breakages in the breaking metal, provoked
by fatigue of the sliding surface made from aluminum alloy. Several bearing metal
pieces are loose in the fatigue zone. The surface structure in the base of the breakage
indicates a firm composition of steel and aluminum alloy. This bearing shell must be
exchanged. Further shells are to be inspected.