Ways to prevent TIMKEN bearing problems

Source: China Bearing Network Time: 2014-10-29

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Rolling bearings in the application process because of their own quality and external conditions; its bearing capacity, rotation accuracy and wear resistance will change. When the function index of TIMKEN bearing is lower than the application demand and can not work normally; the bearing will suffer from defects or even failure; after the accident occurs, the machine and equipment will stop; the utility model will exhibit various abnormal phenomena such as utility loss; Therefore, the need to detect the cause of the attack in a short period of time; and adopt the corresponding approach.
In order to make the bearing in the outstanding conditions can adhere to the function and long-term use. It is necessary to view and protect the bearings; inspection and protection are important to prevent problems; in the work, you should check the bearing's tumbling, oscillation, temperature and smoothing agent.
One of the rolling bearing noises is the TIMKEN bearing itself; that is, the inherent noise of the bearing, and the other is the noise that occurs after the bearing is installed; it has nothing to do with the noise of the bearing itself. After listening to the sound, you can divide some questions. a) Inherent noise: raceway sound "All kinds of bearings and tumbling conflict sounds (cylindrical roller bearings) are the inherent sound of rolling bearings. The rolling track sound is caused by the elastic characteristics of the rolling body and the raceway; when the bearing rotates; the rolling body rolls over the raceway and announces a continuous and slippery sound; abnormal tumbling conflict can be declared. Uncomfortable metal conflicts such as squeaking and squeaking are unusual sounds; such sounds are not announced when sleek is outstanding. Therefore, it is not a problem under normal conditions; as long as the noise increases, it needs to be paid attention to. b) noise related to bearing production: this includes the bracket noise and vibrato; the main cause of the rack noise is in the ball bearing and the tapered roller bearing; when the bearing rotates, because of the oscillation of the bracket and the collision of the frame and the rollover Will announce the sound. This sound has a periodicity. Vibrato (various bearings) is a sound with a certain frequency; it is caused by the oscillation caused by the large waviness on the raceway surface. c) Noise caused by improper use: all kinds of bearings exist. When the bearing raceway or the tumbling outer surface is bumped, crushed, or rusted, there will be a certain period of noise and oscillation. Contaminant noise occurs when the bearing invades dust during work. This kind of noise is the same as the periodicity of the error, and it is accompanied by oscillation. The sound is not fixed; sometimes it is not.
The oscillation of the bearing has a significant effect on the failure of the TIMKEN bearing. For example: shedding, indentation, rust, cracks, wear, etc. will be reflected in the bearing oscillation detection. Therefore, after selecting the special bearing oscillation measuring equipment (frequency analyzer and oscillator, etc.), the amplitude of the oscillation can be measured and the frequency dispersion can be inferred. The measured value of the abnormal state of the abnormal oscillation is different depending on the operating conditions of the bearing or the orientation of the sensor device. Therefore, the measurement value of each machine is analyzed beforehand and the specification is determined.
Generally, the temperature of the TIMKEN bearing gradually rises after the start of the work for 1 to 2 hours to reach a stable condition. The normal temperature of the bearing is different due to the heat capacity, heat dissipation, speed and load of the machine. If it is smooth and the device is not suitable, the bearing temperature will rise sharply and it will show abnormal high temperature. It is necessary to stop and adopt the necessary precautions.
Although the bearing quality is better in all aspects, the rolling bearing is a fine part; its application must be carried out in a stable manner. No matter how high-performance bearing is used; if it is not used properly, it will not get the expected high function. There are several items to focus on:
.1), adhere to the bearing and its surrounding health.
Even small dust that cannot be seen by the eyes will have a bad influence on the bearings. Therefore, it is necessary to adhere to the surrounding sanitation; so that the dust does not invade the bearings.
.2), use it cautiously.
In the application to give TIMKEN bearings a fierce impact; will cause scars and indentations; become the cause of the incident. Under severe conditions; will crack, crack; so it is necessary to pay attention.
.3), use the appropriate operating things.
Prevent the replacement of existing things; it is necessary to use the right things.
.4), pay attention to the corrosion of the bearing.
When operating TIMKEN bearings; the sweat on the hands will become the cause of rust. Pay attention to the use of clean hands; the best possible with gloves.

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