Since our inception, our goal has been to provide excellent customer service and innovative Bearing 6302, Block And Rail Linear Motion Guide, LMK40 Linear Steel Cage Bearing C3. Our company adheres to the enterprise tenet of technology introduction and independent development. We know that quality, cost and timely delivery rate are three very important factors that affect the competitiveness of enterprises. We promise to be responsible to customers and employees, as well as to society and the country.
The tapered roller bearing in the following example suffered early failure during use. After disassembly, it was found that the bearing assembly was highly abnormal, the rolling element surface was severely peeled off, and a large amount of flaky debris was visible after cleaning.
1. After the tapered roller bearing fails, the characteristics of each part failure:
1.1 Tapered roller bearing outer ring
The raceway surface of the outer ring is on a normal working track, with slight peeling, and there are friction marks of relative sliding on the outer diameter surface.
2. Bearing failure analysis
The measurement data of the surface condition and related parameters of the faulty bearing can be analyzed as follows:
2.1 The size of the raceway of the inner ring of the bearing changes greatly, and at the same time the inner diameter of the inner ring of the bearing becomes larger;
2.2 The entire running track of the raceway surface of the bearing inner ring has obvious boundaries. Track scratches and peeling are caused by hard foreign matter mixed in the lubricating oil and caused by the high-speed rolling of the rollers.
of;
2.3 There are traces of friction between the inner surface and the shaft, which account for 4/5 of the entire inner diameter width. The inner ring of the bearing and the shaft should be an interference fit. There should be no mutual rotation during normal operation; if there are traces of rotation, It means that there is mutual movement between the inner ring of the bearing and the shaft, and the bearing is working abnormally;
All kinds of Stainless Steel Standard Tapered Roller Bearing 31314 Size 70X150X35 mm produced by our company have reached the national standards. We closely follow the development trend of the industry and strive to keep pace with the development of the world. We hope that every employee will achieve full personal development while promoting the development of the enterprise.