Analysis of the causes of bearing damage - Hope Sunland

In the process of using bearings, often due to some external factors cause some bearing wear in rotation, and these bearing wear will be completely damaged in the addition of day by day, which requires our maintenance personnel to replace the bearing, and what are the elements that generally form bearing damage. Today we will dissect some of them and give us some reasonable propositions:

Analysis of the causes of bearing damage - Hope Sunland

Analysis of the causes of bearing damage - Hope Sunland

1. Improper bearing equipment (about 16%)

1. Improper use of equipment bearings, directly hitting the bearing with a hammer, and relying on the rolling elements to transmit force is the main reason for the damage.

2. The equipment adjustment is not in place, and the equipment is deviated or not installed in the bearing position, resulting in too large or small bearing clearance. The inner and outer rings are not in the same center of rotation, forming a different center.

3. For the sealed, many customers like to remove the dense powder before the equipment, and then fill some smooth grease, this method is at fault, the direct use of the seal can be, because it has been filled with smooth grease during production, it is not advisable to unpack and then refuel, if necessary, it is advocated to clean all the original smooth grease in the bearing, and then replace it with a new smooth grease to prevent the type of smooth grease from being inconsistent and forming premature damage to the bearing.

Proposition: select appropriate or professional bearing equipment tools, and use special instruments to detect whether the radial runout and axial channeling of the shaft meet the process requirements.

2. Poor smooth bearing (about 50%)

According to investigations, poor slip is one of the main causes of premature bearing failure. The main reasons include: not adding smooth grease or smooth oil in time; Smooth grease or smooth oil is not filled in place; Improper selection of smooth grease or smooth oil; The smooth method is incorrect, and so on. Generally, if the speed is less than 3000 rpm, it is recommended to use smooth grease, such as those used in motors, and generally use smooth grease.

Proposition: Choose the right smooth grease or smooth oil, use the right smooth method and reasonable filling cycle.

3. Bearing pollution (about 14%)

Premature bearing damage can also be caused by contamination, which means that sand, dust, metal shavings, etc. enter the bearing. The main reasons include: opening the bearing package prematurely before the equipment, forming invasive pollutants on the surface of the bearing operation; The operating environment of the equipment is not clean, resulting in the formation of intrusion pollutants on the surface of bearing operation; The working environment of the bearing is not clean, and the working medium is polluted.

Claim: It is best not to unpack the bearing before use; Keep the equipment environment clean and clean the bearings to be used; Sealing equipment for reinforced bearings.

Fourth, bearing fatigue (about 34%)

Fatigue damage is a common method of damage to bearings. Common causes of fatigue damage may be: long-term overload of bearings; failure to repair in a timely manner; improper repairs; equipment aging, etc.

Analysis of the causes of bearing damage - Hope Sunland

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