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ABOUT FUJING

11 years of industry experience, do everything carefully...

Ensure product quality, timely supply and after-sales service

Wafangdian Fujing heavy bearing manufacturing Co., Ltd. was officially established in July 2010. Wafangdian Fujing heavy bearing manufacturing Co., Ltd. is located in Wafangdian City, which is known as the bearing capital of China. The enterprise aims to improve and transform the bearing industry with high and new technology. Wafangdian Fujing heavy bearing manufacturing Co., Ltd. has advanced manufacturing technology. Based on the concept of attentive service and pursuit of excellent service, the enterprise provides customers with high-quality and reliable alternative imported products from beginning to end.

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11 years of industry experience, high efficiency technical team
High tech enterprises, many core patented technologies
More than 40 sets of various processing equipment
There are more than XXX employees

Three coordinates

CA35 Cylindricity tester

Roughness profiler

Processing equipment

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Equipment display

It can produce single row, double row and four row cylindrical roller bearings for rolling mills in metallurgical industry; Single row, double row and four row tapered roller bearings; Single row and double row angular contact bearings; Single and two-way thrust cylindrical and tapered roller bearings; Deep groove ball bearing;

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Three coordinates

CA35 Cylindricity tester

Roughness profiler

Finished product display

The enterprise always follows the purpose of "ensuring product quality, timely supply and after-sales service"

CC type spherical roller bearing

Spherical Bearing Roller Bearing

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What is clearance and how to measure the clearance of rolling bearing?

 2021-09-10

The so-called clearance of rolling bearing is the maximum activity of one ring fixed and the other ring along the radial or axial direction. The maximum activity along the radial direction is called radial clearance, and the maximum activity along the axial direction is called axial clearance. Generally speaking, the greater the radial clearance, the greater the axial clearance, and vice versa. According to the state of the bearing, the clearance can be divided into the following three types: 1、 Original clearance Clearance in free state before bearing installation. The original clearance is determined by the processing and assembly of the manufacturer. 2、 Installation clearance Also known as fit clearance, it is the clearance when the bearing, shaft and bearing seat are installed but not working. Due to interference installation, either the inner ring is increased, or the outer ring is reduced, or both, the installation clearance is smaller than the original clearance. 3、 Working clearance When the bearing is working, the inner ring has the maximum temperature rise and the maximum thermal expansion, which reduces the bearing clearance; At the same time, due to the load, the contact between the rolling element and the raceway produces elastic deformation, which increases the bearing clearance. Whether the bearing working clearance is larger or smaller than the installation clearance depends on the combined action of these two factors. Some rolling bearings can not adjust the clearance, let alone disassemble. These bearings have six models, namely 0000 to 5000; Some rolling bearings can adjust the clearance, but can not be disassembled. There are 6000 type (angular contact bearing) and 1000, 2000 and 3000 type rolling bearings with conical holes in the inner ring. After adjustment, the installation clearance of these types of rolling bearings will be smaller than the original clearance; In addition, some bearings can be disassembled and the clearance can be adjusted. There are three types: 7000 (tapered roller bearing), 8000 (thrust ball bearing) and 9000 (thrust roller bearing). These three types of bearings do not have original clearance; For 6000 and 7000 type rolling bearings, the radial clearance is reduced, and the axial clearance is also reduced, and vice versa. For 8000 and 9000 type rolling bearings, only the axial clearance has practical significance.

Working condition and suffix meaning of fag self-aligning roller bearing for vibrating machinery

The operating conditions of fag self-aligning roller bearing for vibrating machinery in vibrating machinery the vibrating screen used to screen materials (separate solid materials according to particle size) and other vibrating machinery such as road roller and band saw are equipment bearing high stress. The rolling bearing installed in the vibration exciter unit of these equipment must be able to withstand heavy load, high speed, acceleration and centrifugal force. Most of these applications work in very harsh environments, such as pollution and humidity. Fag's special self-aligning roller bearing is developed for vibration mechanical conditions and has achieved great success in practical application. In particular, the cage of rolling bearing must be able to withstand the force generated by high radial acceleration. Under worse working conditions, it may also bear the force generated by axial acceleration. The rotation of the eccentric block will cause the deflection of the rotating shaft and the relative sliding inside the bearing. This will increase friction, resulting in an increase in bearing operating temperature. The dynamic centering capacity of special self-aligning roller bearing can reach 0.15 °. If you need to provide greater centering capability, please contact the industrial application engineer of Schaeffler Group. Basic design of FAG Special self-aligning roller bearing FAG Special self-aligning roller bearing series for vibration machinery is 223, and its main dimensions comply with e DIN 616: 1995-01 and ISO 15 standards. For the special stresses generated in vibrating machinery, FAG provides special self-aligning roller bearings with suffix t41a or t41d, which are described in section 1.5. X-life self-aligning roller bearing 223-e1 series has very high bearing capacity by maximizing the use of bearing cross-section. For vibrating machinery, the inner diameter of X-life series self-aligning roller bearings available at present can reach 220 mm. 1.2. 1 X-life 223..- E1-t41a (d) series self-aligning roller bearing fag self-aligning roller bearing designed by E1 has no flange and has very high bearing capacity. FAG Special Bearing 223 with suffix t41a or t41d designed for vibrating machinery- E1 series also has this advantage, as shown in Figure 1. This is a new fag standard design for bearings with bearing diameters from 40 mm to 150 mm (bore series 08 to 30).

 2021-09-10

Steel category and description of common bearing materials

Two: steel plate! According to the thickness, thick steel plate (thickness $% mm) and thin steel plate (thickness!% mm) "according to the purpose, it is divided into general steel plate, boiler steel plate, shipbuilding steel plate, automobile thick steel plate, general steel plate, roof steel plate, pickling steel plate, galvanized steel plate, tinned steel plate and other special steel plates.

 2021-09-10

Study on friction and wear properties of radial joint bearing

Firstly, the outer ring of gez101es radial plain bearing sample before and after optimization should be cut into two pieces with a center angle of 170. The bearing bush is fixed on the shaft connected with the friction and wear tester. The friction and wear test is carried out with the bearing friction and wear tester developed by Nanjing University of Aeronautics and Astronautics (see Figure 3). Firstly, at the frequency of 0.12 Hz and the swing angle of ± 30 Measure the friction coefficient under different positive pressure conditions lubricated with MOS lithium grease. First load the positive pressure to 150 kn and measure the corresponding friction coefficient, and then load it according to the positive pressure of 250 kn, 357 kn, 500 kn and 607 kn to measure the corresponding friction coefficient. A total of 19 groups of friction coefficients under different positive pressure conditions were measured, The average value of friction coefficient under different positive pressure conditions is taken as the basis for the design, calculation and use of articulated bearing. Since the friction during the swing of friction and wear testing machine is related to the swing angle, from the perspective of tribology, as long as it can pass through the position of maximum friction, it must pass through other positions. In view of this, we measure the maximum friction, The maximum friction coefficient is obtained by converting it into friction coefficient Secondly, we use the gez101es plain bearing specimens before and after optimization for wear comparison test. The test conditions are: positive pressure 607 kn, swing frequency 0.12 Hz, swing angle ± 30., Swing near the contact point of the inner and outer rings of the bearing. It is specified that one of the three conditions such as temperature rise ≥ 150 ℃, wear amount of the inner or outer ring ≥ 150 m or ring burn shall be used as the basis for judging the wear failure. No ring burn is found in the whole test process, and the temperature rise of the test piece shall not exceed 40 ℃ after 12 hours of continuous wear test, Therefore, the wear amount of 150 m is taken as the judgment basis for the termination of the test. The temperature of the bearing is monitored with a digital display thermometer, the thickness of the outer ring of the bearing is measured every 4 ~ 6 hours during the wear test, and the ball diameter of the inner ring of the bearing is measured with a micrometer. The wear thickness is equal to the initial thickness minus the thickness measured after the wear test

 2021-09-10

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Address: Longshan, Sanjia village, Zhuhua street, Wafangdian City, Liaoning Province

Tel：13601934995

E-mail：13601934995@163.com

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