These thin section ball bearings are available as deep groove ball bearings, angular contact ball bearings, four point contact ball bearings and slim ball bearing.
2014年12月11日星期四
The reason of aligning ball bearing failure analysis
aligning ball spherical ball bearings cause of failure is often multifactorial, all design and
manufacturing process and the impact of factors related to failure of the bearing, it is not easy to judge the analysis. Under normal circumstances, in general, can be considered and analyzed both from the use of factors and internal factors.
Use the adjustment factor mainly refers to the installation, use and maintenance, repair and other maintenance meets the technical requirements. Installation conditions is one of the primary factors in the use of the factors bearing is often caused due to improper installation package bearing the stress state changes between the various parts, aligning ball bearing in a normal state of operation and early failure. According to the spherical plain bearings installation, use, maintenance, maintenance of the technical requirements for operation of
the bearing to withstand load, speed, temperature, vibration, noise and lubrication condition monitoring and inspection, abnormal immediately find reasons to adjust to return to normal. In addition, the quality of the grease and the surrounding medium, and the atmosphere is also important for analysis testing.
Internal factors mainly refers to the design, manufacturing process and material quality three factors determine the quality of the bearing.
First, along with a reasonable structure design has advanced, will have a longer bearing life. Manufacture of bearings generally through forging, heat treatment, turning, grinding and assembly of multi-channel processing. The reasonableness of the processing technology, advanced, will also affect the stability of the bearing life. Which affect the quality of the finished product bearing heat treatment and grinding processes, tend to have a more direct relationship with the failure of the bearing. Recent studies on the bearing surface metamorphic layer show that the grinding process is closely related to the bearing surface
quality.
Metallurgical quality aligning ball four point contact ball slewing bearing material was the main factor affecting the early Rolling failure. As metallurgical techniques (such as bearing steel vacuum degassing, etc.) advances, improved quality of raw materials. Raw material quality factors in bearing failure analysis in the proportion has decreased significantly, but it is still one of the main factors bearing failure. The adequacy of the selection is still bearing failure analysis of factors must be considered.
The main task of aligning ball bearing failure analysis is based on a lot of background material, analysis of data and failure modes, failure to identify the main factors causing the bearing to make targeted improvements to extend bearing service period, to avoid bearing occurrence of unexpected early failure.
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