Bearing Shells
Inspection / Evaluate
A5.05. 02.03.07.01
M20
en / 30.09.2010 IB001449 1/4
02
See also: 02.05.01.nn
Spare parts list: B1.05.03.2.1110
Time requirement: 0 Pers./ 0,00 h
Personnel qualification: Chief engineer / skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Refitting
Criteria catalogue:
Fig. 1 - The contact reflection is uniformly formed on the entire bearing width. This bearing shell can
be reused.
Fig. 2 - The contact reflection is uniformly formed on the entire bearing width. From experience the dirt
scratches caused by a foreign matter in the lubricating oil do not influence the further
safety of operation of the slide bearings. This bearing shell can be reused.
Fig. 3 - The contact reflection is uniformly formed on the entire bearing width. The scratches running
radially are caused by fine solid matter particles contained in lubricating oil. If the depth
of these scratches is neither to be measured nor to be sensed, the bearing shell can be
reused.
If the number, depth and a large circumference length affects the production of the
grease film, the bearing is to be exchanged.
NOTE
Contaminated oil, solid foreign matters, water and tool deficiencies are the cause of
85 % of all cases of bearing damage.
Dirt is the worst enemy of all bearings! A thorough oil treatment and a careful filter
maintenance are therefore indispensable for a reliable operation and a long service
life.
The following criteria catalogue shows various wear stages caused by mechanical
abrasion and fatigue the bearing shells.
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