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An important part of the cooling fan-bearing

An important part of the cooling fan-bearing
1. What is a bearing?
Bearing is an important part of contemporary machinery and equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement and ensure its rotation accuracy.
 
According to the different friction properties of the moving elements, bearings can be divided into rolling bearings and sliding bearings. Among them, rolling bearings have been standardized and serialized, but compared with sliding bearings, their radial dimensions, vibration and noise are larger, and the price is higher.
 
Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling element and cage. According to the shape of the rolling elements, rolling bearings are divided into two categories: ball bearings and roller bearings.
 
The bearings of the cooling fan are divided into ball bearings and oil-impregnated bearings. Among them, ball bearings have better quality and longer service life than oil-impregnated bearings, and of course the price is higher. Bearings are important basic components of various mechanical equipment. Its accuracy, performance, life and reliability play a decisive role in the accuracy, performance, life and reliability of the host.
 
2. How to distinguish the quality of equipment bearings? Ruiapple believes that we can proceed from the following aspects:
Is the outer packaging clear
Double-row tapered roller bearings. Under normal circumstances, the brands produced by regular manufacturers have their own dedicated designers to design the external packaging, and arrange for the production of factories that pass the production conditions. Therefore, the packaging of the products is from lines to color blocks. It should be very clear and unambiguous.
 
Is the steel stamp clear
Each bearing product will have its brand name, label, etc. printed on the bearing product body. Although the font is very small, the products produced by regular manufacturers are printed with steel stamping technology, and the fonts are pressed before heat treatment. Therefore, although the fonts are small, they are deeply concave and very clear. Normally, the fonts of counterfeit products are not only blurred. Due to the rough printing technology, the fonts float on the surface, and some of them can even be easily erased by hand or have serious manual traces.
 
Whether there is noise
Hold the inner sleeve of the bearing with your left hand, and turn the outer sleeve with your right hand to make it rotate. Listen for noise during the operation of the bearing. Due to the backward production conditions of most counterfeit products, it is completely manual workshop operation. During the production process, the bearing body will inevitably be mixed with impurities such as dust and sand. Therefore, noise or unsmooth operation will occur when the bearing rotates. . This is the key to judging whether the product comes from a regular manufacturer's brand product that has strict production standards and is operated by machines.
 
Whether there are turbid oil stains on the surface
Whether there are turbid oil stains on the surface, this requires us to pay special attention when buying imported bearings. Because there is still a certain gap between the domestic anti-rust technology and foreign advanced manufacturing countries, it is easy to leave thick oil stains when the bearing body is anti-rust treatment, and it feels sticky and sticky when touched by hand, while foreign original There is almost no trace of anti-rust oil on the imported bearings. According to industry insiders, especially careful people can smell a special smell on imported bearings, which is the smell of anti-rust oil.
 
Is the chamfer uniform
The so-called chamfer of the bearing is the junction of the horizontal plane and the vertical plane. Due to the limitation of production technology, the counterfeit bearing products are not handled satisfactorily at these corners and corners. We can easily distinguish this.
 
Bearing packaging
The packaging is divided into inner packaging and outer packaging. After the bearings are manufactured and passed the inspection, they will be cleaned and anti-rust treated, and then placed in the inner packaging to achieve waterproof, moisture-proof, dust-proof, shock-proof, and maintain the quality and accuracy of the bearing And the purpose of facilitating use and sales.
 
The inner packaging of the bearing is divided into three categories according to the anti-rust period:
①Short anti-rust period packaging: 3-6 months anti-rust period, suitable for bearings that are shipped to the same subscriber in large quantities and put into use in a short time. The two parties have agreed to use simple packaging based on the principle of convenience.
 
②General anti-rust period packaging: one year anti-rust period, suitable for general-purpose bearings.
 
③Long anti-rust period packaging: two years anti-rust period, suitable for special and precision bearings.
 
Bearing inner packaging materials include polyethylene plastic tube (box), kraft paper, plain and wrinkled polyethylene composite paper, paper box, polyethylene or polyethylene plastic film, nylon fastening tape or plastic woven fastening tape, waterproof high-strength plastic tape , Linen bags, etc. All the above materials must be qualified in the corrosion resistance test.
 
Shenzhen Ruiapple Electronics Co., Ltd. is a professional fan manufacturer with 20 years of R&D, production and sales experience. Main business: cooling fan, DC fan, AC fan, silent fan, centrifugal fan, blower and other full range of heat dissipation and ventilation products as an integrity enterprise, the series of cooling fan products have obtained UL, CUL, CE, CCC, ROHS, etc. International Certification.
 
Shenzhen Ruiapple Electronics Co., Ltd. was established in 2000. For 20 years, it has focused on R&D, manufacturing and sales of DC AXIAL FAN, AC AXIAL FAN, CENTRIFUGAL FAN, and blower ( BLOWER), AC to DC fan (EC FAN), DC motor (DC MOTOR), AC to DC (EC MOTOR) motor and other full series of cooling and ventilation products as a whole series of integrity enterprises.
 
Shenzhen Ruiapple Electronics Co., Ltd. has its own brand "RUIAPPLE", which is registered as a patent trademark by the government. The company passed the ISO9001-2015 system certification in the early years. The series of heat dissipation fan products have obtained UL, CUL, CE, CCC, ROHS and other international certifications.
 
Shenzhen Ruiapple Electronics Co., Ltd. is a professional fan manufacturer (manufacturing factory Mianyang Anpu Electric Co., Ltd. was established in 2009 and China Electronic Technology City Mianyang Economic Development Zone, Sichuan), with 20 years of R&D, production and sales experience. Our R&D, quality control and production always pay close attention to new technologies and new methods to pursue the goal of zero defects, continuously improve product quality and stability, improve products, innovate products, and lean production. Our product quality and production technology have always been in the forefront of the industry, with complete product specifications and comprehensive market competitive advantages.