Bearing Damage as a Consequence of Inadequate Lubrication During Operation

In the diploma thesis, they addressed the topic of bearing damage due to improper lubrication during operation. They highlighted a case from practice – the wear of a rolling bearing, based on which they described and identified critical points. They also established that by writing the diploma thesis they achieved the set objectives: They determined that during bearing replacements and lubrication, particular attention should be paid to the following:

Problem

In the diploma thesis, they addressed the topic of bearing damage due to improper lubrication during operation. They highlighted a case from practice – the wear of a rolling bearing, based on which they described and identified critical points. The case was supported with photographs.

All the described concepts and facts in the diploma thesis relate to a practical example not only in the diploma thesis, but also in practice in general. They conceived three hypotheses: All three hypotheses were confirmed on the basis of appropriate professional, internal and online material. No hypothesis was refuted, which they also demonstrated in the references.

They also established that all three hypotheses are mutually dependent, which means that they are significantly and characteristically similar and appropriately highlighted for the given problem. As they have already described, lubrication techniques significantly influence operation and extend their service life. Consequently, due to the correct choice of lubricant, which must be properly stored, ** friction is reduced** during operation.

The construction of the bearing housing affects the bearing itself; both are dependent on each other. Here, the correct choice of material is also necessary.

Solution and Method

• With proper construction of the bearing housing, a longer service life can be achieved.
• With the correct lubrication procedure, we reduce bearing friction and simultaneously increase service life.
• With the correct choice of lubricant, we can improve bearing operation.

Results

They also established that by writing the diploma thesis they achieved the set objectives: They determined that during bearing replacements and lubrication, particular attention should be paid to the following: Emphasis on preventive maintenance in heavy industry is also of key importance. As they mentioned in the diploma thesis, with regular service interventions and inspections we can prevent the possible onset of damage; with investment in the company we can enable maintenance personnel with devices such as the ** Bearing Checker** from the manufacturer SPM INSTRUMENTS to predict various situations that can affect current production and thus uninterrupted work much more easily.

They would wish for their final work to help in industry or education in practice or theory. They are also of the opinion that there is a lack of professional research and material on the chosen topic. Much of the already existing material is internal.

The author also, in collaboration with the company Bell d.o.o, summarised facts from internal material in the diploma thesis. They learned that bearings are of key importance in mechanical engineering and that their function is equally important. In order to extend the service life of bearings and thus reduce procurement costs, bearings need to be maintained regularly and with quality.

• To prevent seizure in the housing, it is always necessary to check the housing positioning; likewise, before assembly, I lubricate the external bearing surface with assembly paste.
• During assembly, suitability is checked with radial clearance, which we perform after assembly.
• Correct assembly is carried out with a nut that pushes the bearing into the housing onto the shaft taper.
• Controlled clearance after assembly must be at least 0.1 mm, as the basic bearing clearance is C0.
• The external bearing surface requires lubrication with assembly paste, which prevents the formation of possible contact corrosion.