Installation Backing bearings

When assembling the joint bearing series, it is necessary to pay special attention to the location of the outer surface of the split. Consistent with a direct role in order to avoid the cut surfaces, the need to maintain the dividing surface at right angles to the direction of compliance. Backing Bearings When the applied load and the speed of the swing movement generated by the very hour, Backing bearings to the oil-type spherical plain bearings can operate without lubrication conditions. Nevertheless, under normal circumstances have to be jacked up to add grease. Operation during the initial installation, tapered bearing manufacturer is recommended lubrication intervals should be moderately reduced. Circumstances non-oil type joints lubricated bearings can no longer use the following. However, if before the operation adding lithium soap grease, use the term joint bearing stresses may be more prolonged. If injected into the space around the bearing grease, Backing bearings joints will be more effective protective dust and foreign matter intrusion.

Operating Temperature Cylindrical roller bearing

Joint bearing allowable operating temperature is mainly determined by the pairing of the sliding surface between the bearing material, especially plastic material self-lubricating sliding surfaces bearing joints, its carrying capacity at high temperatures have decreased. When the sliding surface materials such as lubricating plain bearings pairing of steel / steel, four row cylindrical roller bearing the allowable operating temperature depends on the allowable operating temperature lubricant. But for all lubricated and self-lubricating bearing joints is concerned, may, within -30 ℃ ~ + 80 ℃ temperature range of use, and maintain the correct affordability. Dip Rolling bearing joints is much greater than the general inclination is adjustable heart, it is suitable for use in less demanding concentricity supporting parts, plain bearings form bearing structure with the inclination of the size, type, seal and bearing varies, Cylindrical roller bearing generally Spherical plain bearings tilt range is 3 ° ~ 15 °, inclination range of angular contact bearings are 2 ° ~ 3 °, inclination range of thrust bearings are 6 ° ~ 9 °. Coordinate In any case, Cylindrical roller bearing shall be chosen with the occurrence of uneven deformation of the ferrule, with the nature and level of their choice must be determined according to the bearing type, slim bearings and other support in the form of working conditions and loads. Handling Plain Bearings Joint bearing handling should follow the principle that the force exerted by the assembly and disassembly can not directly pass through the spherical sliding surface. Further, the auxiliary working tools should be used, such as a sleeve, disassembly, etc., Cylindrical roller bearing the loading force is applied directly to the outside, and uniformly applied to the mating ferrule, auxiliary heating or no-load handling methods.

Backing bearings outer ring has a special structure

Plain Backing bearings mainly by an inner and an outer spherical plain bearing outer ring has a special structure within the sphere. Can withstand a greater load. Joint bearing structure than simply rolling bearing, which is mainly composed of an inner and outer sphere within a spherical outer ring. Bearings are generally used for lower-speed swing motion (ie angular motion), Backing Bearings the sliding surface of a spherical shape, but also for tilting movement within a certain range of angles (ie, aligning movement), different heart in supporting shaft and shaft housing bore large degree, still working properly. Spherical plain bearings can withstand a greater load. double row cylindrical roller bearing According to their different types and structures that can withstand the radial load, Backing bearings axial load or radial, axial joint load. Since the outer spherical surface of the inner ring inlaid with composite materials, so the bearing at work can produce self-lubricating. Generally used for slower swing movement, and low-speed rotation, but also for tilting movement within a certain range of angles, when different supporting shaft and shaft misalignment large shell hole, still work. Self-lubricating bearings used in water conservancy, specialized machinery and other industries.

Job requirements Cylindrical roller bearing

For harsh heavy loads, working conditions or special requirements for sealed bearings configuration, you can use the built-in contact-type seals Spherical roller bearings. The bearing dimensions are identical and non-sealed bearings, in many cases can replace the non-sealed bearings. Allow aligning angle of 0.5 °, an operating temperature of -20 ℃ ~ 110 ℃. Inner double row cylindrical roller bearing  has filled the right amount of lithium-based grease rust, grease can be added according to user requirements. Depending on whether the wall and the inner ring with cage, Cylindrical roller bearing can be divided into C-type and CA-type two basic types, C-type bearings are characterized by inner wall and the use of steel stamping cage, CA-bearing characteristics compared to both sides of the inner wall and the use of the car solid cage. These Cylindrical roller bearing are especially suitable for heavy work load or vibration loads. Spherical roller bearings have two raceways in the inner and raceways between spherical outer ring, equipped with a drum-shaped roller bearings [2]. The outer ring raceway curvature center and bearing center line, so has the same self-aligning ball bearing self-aligning feature. When the shaft, Crossed Tapered Roller Bearing shell deflection occurs, you can automatically adjust load and axial load in two directions. Radial load capacity, for a heavy load, Cylindrical roller bearing impact load conditions. Inner diameter is tapered bore bearings can be installed directly. Or use an adapter sleeve, remove tube installed in the cylinder axis. Cage with steel stamping cage, forming polyamide cage and copper alloy machined cage.

slim section ball bearing Strategic Initiatives

slim section ball bearing should develop a strong team of technology as a strategic business development initiatives, strengthening human resource management, good training personnel, attracting and with a good job, give full play to the initiative and creativity of scientific and technical personnel, in particular, intellectual property developed product, which is the main conditions for continued development and growth. Have a greater production capacity and strong technical strength, slim section ball bearing a variety of precision, all types of bearings can be produced, the smallest bearing diameter only 0.207 mm, the maximum outer diameter reached 5.492 meters, basically meet the national economy sector needs. On the slim section ball bearing life and reliability of critical heat treatment of advanced technology and equipment, such as controlled atmosphere to protect the heating, double refining, bainite quenching low coverage, many technical problems research failed to achieve a breakthrough. Research and development of new steel bearing steel development, improve the quality of steel, lubrication, cooling, cleaning and abrasives and other related technologies, Slewing Bearing still can not meet the level of bearing products and quality improvement requirements. slim section ball bearing resulting in low process capability index, consistency is poor, product processing size dispersion degree, unstable product quality and impact of the internal precision, performance, longevity and reliability of the bearing.

Backing bearings innovation capability

China's bearing industry currently faces three major outstanding issues: namely, industry production concentration, low R & D and innovation capability, low level of manufacturing technology. First, a low concentration of manufacturing industries. Bearing worldwide sales of approximately $ 30 billion, the world's eight major multinational companies accounted for 75% to 80%. Germany, the two companies account for 90% of the national total, bearings for rolling mills  accounted for 90% 5 of the national total, 56% of the United States one of its national total. In China, such as 10 Wazhou largest bearing company sales accounted for only 24.7% of the entire industry, before 30 production concentration of only 37.4%. Experts believe that the reasons for this: First, the original large state-owned enterprises due to problems on the system and mechanism, the relatively slow development; the second is the advantages of private, private enterprise is still in the growth stage; third is low-level redundant construction, industry factory point too scattered, General Bearing serious excess capacity. Second, Backing bearings low R & D and innovation capability. Due to funding the construction and operation, R & D and innovation, most companies invest in innovation system, personnel development and other aspects are still at a low level, precision bearings with research institutes towards enterprise service-oriented industry, the state has no common industrial technology research investment, thus weakening the industry-oriented research and development functions. Therefore, the entire industry, "the two least two weak" outstanding, basic research that is weak, participation in international standards development is weak, less original technology, less patented products. At present, our design and manufacturing technology is basically imitate, consistent system for decades. Product development capacity, and performance: Although a host of supporting domestic rate of 80%,Tapered roller bearings  but the high-speed railway passenger cars, luxury cars, computers, air conditioners, high levels of mill and other important bearing host support and maintenance, basically rely on imports. Third, the low level of manufacturing technology. Bearing industrial manufacturing processes and process equipment and technology development of China's slow, low CNC lathe, grinding low level of automation, there are only more than 200 automated production lines. Most companies, especially in the old state-owned enterprises as the main production is still traditional equipment.

Cylindrical roller bearing product quality

Cylindrical roller bearing technology innovation work, the equipment development, transformation and integration of production, improve the applicability of development and transformation equipment. During the fifteen ZWZ conducted 39 major renovation projects and equipment, four row cylindrical roller bearing improve the equipment level of the company, to expand the processing capacity of existing equipment to improve the machining accuracy, and ensure the steady improvement of product quality bearings. Roll developed using sub shortage car automatic loading and unloading device, reducing the labor intensity; car tapered bearings grinding production-line, improve the degree of process automation and product quality; the design of the clutch and tensioner unit testing machine is extremely investment Taper bearing used to meet the development needs of the product; the completion of the railway bearing fully automated CNC machine closed transformation and transformation; slim bearings digestion and absorption of the introduction of railway wagons bearing raceway ultra-precision machine, CNC grinder ribs and other special equipment, including railway wagons Cylindrical roller bearing raceway ultra Seiki get China Machinery Industry Federation and Technology Progress Award. Development of large bearing torque detection device, installed in pairs double row tapered bearing torque measuring device, a clutch testing machines and other equipment to fill the gaps in the company for many years to detect these projects and tests.