Reasons for bearing wear
1. Reducing the tensile strength of the metal; jagged scratches
2. Improperly planted; bright (polished stripes)
3.Scratched by dirt; dirt has entered the surface of the bearing
4. Lack of oil; worn top layer
5. Excessive wear; the top layer is wiped off over the entire surface
6. The bearing is deformed; the top layer is wiped off in a circle
Although the old bearing shells are replaced with new ones when the engine is overhauled, the old bearing shells must be carefully inspected. Inspection of the liner can reveal the cause of its wear.
Bearing failure occurs due to lack of lubrication, the presence of dirt and other foreign particles, motor overload and corrosion. Leave the inspection and selection of crankshaft bearing shells to specialists.
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