Bearing Shells
Inspection / Evaluate
A5.05. 02.03.07.01
M20
en / 13.06.1997 IB001449 1/4
02
Ĺ
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
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.
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.
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