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How to judge KOYO failure by sound?

wallpapers Tech 2020-11-05
The history of KOYO Bearings
Founded in 1921, Koyo is one of the four major bearing production groups in Japan. With a long history and culture, Koyo is the third largest manufacturer of imported bearing products for r&d integrated functional products.Through the manufacture of automobile bearings, steering gear and parts, KOYO is committed to contributing to the increasingly perfect harmony between human and earth, society and automobile.KOYO has the world's top production and control equipment, and has eight main production plants in Japan, including Tokyo, Nara, Yueda, Tokio, Takatsu, Tokushan and Keiyama (all passed ISO9001 certification). It has several production bases and research institutes in Europe, Asia, North and South America.
How to judge KOYO failure by sound?
When the rolling bearings are working, under normal circumstances, smooth operation, light, no stagnation phenomenon, the occurrence of sound harmony and no noise, can be heard even and continuous "splash" sound, or lower sound, noise intensity is not big.So how do we tell when KOYO bearings are defective?
First, when the KOYO bearing is heard to produce a uniform and continuous friction sound, it contains an irregular metal vibration sound independent of the speed of rotation.The general performance is the bearing fat content is insufficient, should be supplemented.If the equipment is down for a long time, especially in cold winter temperatures, the KOYO bearings will sometimes make a "hissing and rustling" sound during operation, which is related to the smaller radial clearance of the bearing and the lower grease working needle insertion.The bearing clearance should be adjusted appropriately and the new grease with larger needle insertion should be replaced.
Second, when the KOYO bearing is found to be producing a deep, muffled sound, this sound is caused by scratches, grooves, and rust spots on the rolling body and inner and outer ring raceways.The period of sound is proportional to the speed of the KOYO bearing.Bearings shall be replaced.
Third, the discontinuous sound produced by a bearing is caused by the fracture of the cage or inner and outer rings.KOYO bearings must be stopped immediately and replaced.
Fourth, when the bearing is found to give out irregular, uneven friction sound is due to the bearing fell into iron, sand and other impurities caused by.The sound intensity is small and has no connection with revolutions.The KOYO bearings should be cleaned, regreased or changed.
KOYO bearing Value & Technology dedicates the Technology of Value multiplier to customers. Through close cooperation with customers, the technical team of the company reoptimizes the bearing design scheme to meet  for products.Please contact us if you have any questions or enquiries.

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