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How to judge the quality of KOYO bearings

wallpapers Tech 2021-03-15
Company Product Introduction
Koyo bearings is a Japanese company that produces and develops comprehensive functional products Koyo Seiko Co., Ltd., established in 1921. The full name is Koyo Seiko Co., Ltd. It is one of the four largest bearing production groups in Japan. With world-class production and control equipment, there are eight national branches in Japan, including major production plants in Tokyo, Nara, Ginda, Toyohashi, Takamatsu, Tokushima and Kameyama (all have passed ISO9001 certification), Europe The overseas production bases and research institutions in Asia, North and South America. Koyo Bearings play a key role in the operation of almost all types of machines. As a comprehensive bearing manufacturer, Koyo designs and manufactures various types of bearings, from miniature bearings with a diameter of 1 mm to those with a diameter of more than 7 meters. Whether your application requirements are automotive OEM, automotive and heavy aftermarket, industrial OE or industrial aftermarket, Koyo can meet your bearing requirements. In addition to radial and angular contact balls, including precision machine tool bearings and cylindrical roller bearings, Koyo also provides a full range of spherical roller bearings for the steel industry. Koyo bearing is one of the most well-known names in bearings, and its manufactured products can be used in practically any application that relies on needle roller bearings.
Method of judge the quality
Whether the KOYO bearing body of the KOYO bearing has any noise, grasp the KOYO bearing inner sleeve of the KOYO bearing with your left hand, and turn the outer sleeve with the right hand to make it rotate, and listen to whether there is any noise. Because most of the counterfeit products are produced under backward production conditions and are operated in a thorough craft workshop, it is inevitable that impurities such as sand will be mixed in the production process and hidden in the KOYO bearing, so noise will be announced when it is rotating. This is the biggest difference between the brand that strictly enforces production specifications and uses machines to operate.
Can the chamfer of KOYO bearings be uniform, the so-called chamfer of KOYO bearings, that is, the intersection of the horizontal and vertical planes, counterfeit KOYO bearings are not handled satisfactorily at these corners due to the constraints of production skills. Can the outer packaging of KOYO bearings be clear? Under normal circumstances, the KOYO bearings of the original brand have a personal dedicated depiction of the outer packaging, and the factory that has passed the production conditions is organized to manufacture and produce, so the packaging is no matter from line to color block. They are all very clear and unambiguous. Some brands of accessories have common descriptions on their packaging that are specifically designed to protect individual intellectual property rights.
Whether the steel stamp on the KOYO bearing is clear or not, the brand name, label, etc. will be printed on the KOYO bearing body. The font is very clear. The fonts of the counterfeit products are not only vague, because the printing skills are rough, but the fonts also float on the outside, and some of them can even be easily erased by hand.
Whether there are dirty oil stains on the surface of KOYO bearings, this should be paid special attention to when purchasing KOYO bearings. Because the current domestic rust prevention skills are not unique, it is very easy to leave thick oil stains when the KOYO bearing body is processed for rust prevention, which is sticky and sticky on the hand, while the original foreign KOYO bearing is just looking at it. There is no trace of anti-rust oil, but a unique and careful expert said that KOYO bearings smelled of a taste, it must be anti-rust oil, just can't see it.

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