Tapered roller bearings have three races

Three-row roller wheel Tapered roller bearings have three races, up and down and radial raceways each separately, so that each row roller load can be determined exactly. Be able to withstand a variety of loads, is four products in one of the largest carrying capacity, axial and radial dimensions are large, solid structure, especially for applications that require larger diameter heavy machinery, such as bucket wheel excavators, tapered roller bearings wheel cranes, marine cranes, port cranes, steel operating units and large-tonnage truck cranes and other machinery. Lightweight wheel bearings slewing ring has the same general structure, light weight, flexible rotation. Widely used in food machinery, filling machinery, environmental protection machinery and other fields. Single-row four point contact ball bearing turntable composed by two races, compact and circular raceway ball four point contact. Mainly used truck cranes, tower cranes, excavators, hammers, engineering vehicles, Stainless steel slewing bearing radar scanning equipment to withstand the overturning moment, vertical axial force, Tapered roller bearings the level of mechanical inclination force. Single row cross roller wheel bearings, composed by two seat, compact structure, high manufacturing precision, small assembly space for installation high precision roller 1: a cross arrangement, can withstand the axial force, dumping turning torque and greater radial force, which is widely on transport, engineering machinery and military products are used.

Single row cross roller wheel china bearings

Wheel bearings can withstand a large axial load, radial load and overturning moment, comprehensive load, set support, large bearing rotation, transmission, fixed and other functions in one particular structure. Single-row four point contact china bearings turntable from the inner ring, china bearings outer ring, ball, isolated block of four major components, compact, light weight, ball four point contact with the circular rolling road, can withstand the axial force, radial forces. Rotary conveyors, welding operation machine, small cranes and excavators and other construction machinery can be selected. Double-row ball bearing turntable has three races, bearings for printing machine ball and isolation block can be directly discharged into the upper and lower raceway, according to the situation by force, arranged up and down two rows of balls of different diameters. This assembly is very convenient, carrying angle of both the upper and lower circular raceway is 90 °, can withstand large axial forces and tilting moments. When the axial force is greater than 0.1 times the radial force, roller must be specially designed. Double-row ball slewing bearing axial, radial dimension than the larger, structural tightening. Thin section bearing Especially for applications that require above average diameter of tower cranes, truck cranes and other handling machinery. Single row cross roller wheel china bearings, composed by two seat, compact, light weight, high manufacturing precision, small assembly space for installation high precision roller 1: a cross arrangement, can withstand axial force, tipping moment and larger radial force, is widely on lifting the transport, engineering machinery and military products are used.

The key technology of Luoyang bearing

Design and Analysis: Analog design experience is still the main study stress analysis and load spectrum is almost blank. Technical difficulties which are the requirements for spindle bearings trouble-free operation of 13 * 104h or more, and have more than 95 percent reliability; Luoyang bearing gearbox bearings for high load capacity design a high failure rate and so on. Luoyang bearing Materials: different parts of the bearing using different materials and heat treatment, such as increased yaw and pitch bearings 40CrMo steel at low temperature (ambient temperature -40 ℃ ∽-30 ℃, the bearing operating temperature of about -20 ℃) ​​Cylindrical roller bearing and other mechanical impact energy heat treatment method performance control surface induction hardening of the hardened layer depth, surface hardness, soft bandwidth and surface cracks; gearbox bearing equivalent foreign STF, HTF steel research and control its optimum content of residual austenite research; Luoyang bearing spindle bearing quality steel in the domestic vacuum degassing surviving in the case of a gap, Taper bearing using ESR carburizing steel ZG20Cr2Ni4A manufacturing. Anti-corrosion and sealing. Yaw and pitch bearing special clearance requirements. Yaw and pitch bearing raceways grinding. Spindle bearings and gearbox bearings precision machining. Transmission bearings maintain improved design frame. Testing and so on.

Analysis of Tapered roller bearings area

In roller bearings generally operate only part withstand load, while the area where this part of the roller bearing area we call the Tapered roller bearings . The bearing load size, the size of the clearance operation will have an impact on bearing area. If the bearing area is too small, tapered roller bearings the roller in the actual operation is prone to slippage. For the wind turbine gearbox, if the spindle is designed with double Tapered roller bearings support programs, then theoretically only torque is transmitted to the gear box. In this case, after a simple mechanical analysis, we find that the planet carrier supporting the bearing load is relatively small, precision bearings so the load zone of the bearing is often relatively small, roller prone to slipping. In the design of wind turbine gearbox carrier support bearings generally use two single row tapered roller bearings or cylindrical bearing two full programs. We can properly preload tapered roller bearings or cylindrical roller bearings reduce clearance methods to improve the bearing area.

china bearings lubrication analysis

Wind speed gearbox input shaft is generally 10-20 rev / min, due to the relatively low speed, [1] which is leading to the input shaft china bearings carrier support bearing oil film formation is often more difficult. The role of the film is when the bearing operation to separate two metal contact surfaces, avoid direct metal to metal contact occurs. china bearings  can introduce a parameter λ to characterize the effect of lubricating the bearing (λ is defined as the film thickness and the roughness of the two contacting surfaces and the ratio). If λ is greater than 1, indicating that the thickness of the metal film sufficient to separate the two surfaces, the lubricating effect is good; if λ is less than 1, then the thickness of the oil film can not completely separate the two metal surfaces, the lubricating effect is not ideal. Cylindrical roller bearing  case of bad operation of the lubrication. Because wind power gearboxes are generally used ISOVG320 viscosity lubricant circulation, china bearings so if you find λ is less than 1, we generally can only be improved by reducing the lubricating effect of the roller bearing raceways and roughness. In addition, the gear box design, the planet carrier bearing support end to try to avoid bearing size is too small, the actual application analysis, we found that even life to meet the conditions, this design will lead to a small bearing line speed is very low, the film more can not be formed.

Luoyang bearing huge prospects

In recent years, with its excellent performance engineering plastic products get more and more widely used. Engineering has broad application prospects in Luoyang bearing, plastic bearings are being more and more users.
Because of engineering plastics Luoyang bearing with excellent self-lubricating, wear-resistant, low friction, and special seizure resistance and other characteristics, can work even in case of poor lubrication conditions, so use it as a bearing material is ideal. Currently, plastic bearings development abroad is very fast, the wider range of applications. The plastic bearings in China is still in its infancy, in the production of raw materials, product applications are relatively lacking. Precision Bearing According to incomplete statistics, the parties concerned, the past five years, the domestic general PC, POM, polyamide, thermoplastic resins, modified polyphenylene ether five engineering plastics and market demand has maintained a high growth of 30.3%, while China Luoyang bearing with plastic mainly rely on imports. Therefore, the relevant plastics businesses, seize market opportunities related to the development of plastic bearings, its market prospects are very huge.

The key to winning Tapered roller bearings

Product technology and quality level of our Tapered roller bearings are ideal for developing and newly industrialized countries, tapered roller bearings in Latin America, Africa and other developing countries, bearing exports account for only about 5% of total exports. Critical period of gradual transition to industrialization of developing countries in the coming years it is, the demand for bearings exponentially. Our bearing products and technologies to developing countries is expected to achieve a breakthrough. And in recent years, China's household electrical appliances, motorcycles, generators and other electrical products exports in Latin America and Africa have increased greatly, so these areas has become Cylindrical roller bearing most potential market bearing exports should increase efforts to develop .
With the integration of domestic and foreign markets, precision bearings our Tapered roller bearings bearing industry has gradually integrated into the international trade family, to participate in broader international competition bearing market. In the first half of this year, China's exports to the world bearing 129 countries and regions, earning $ 503,068,100, an increase of 26.40%. Many of our businesses have been bearing production will be exported as an important way to increase efficiency, improve visibility and competitiveness, and sustainable development. With competition intensifying international market, how to find the opponent in the market, "Gold," dug "gold" has become the key to winning.

china bearings market needs

china bearings because of the future market for quality, noise and bearing life increasingly high requirements, thus bearing the same bearing steel industry has put forward higher requirements. For example, precision machine tool spindle bearings, precision bearings aerospace, computers and video recorders and other special bearings, these products Thin section bearing are very high demands on the bearings. But now the quality of steel bearings made in kind is not stable, noise and increase the life and performance indicators of the impact of the bearings, causing internal and surface quality of products made in China and developed countries bearing significant gaps. For this reason, some domestic mills china bearings to meet the needs of the market, is to further develop scientific and technological activities. china bearings Five steel smelting company based in optimizing the quality of the conduct silver steel bar peeling technology research and analysis of surface defects and quality control, research and development of high-quality bearing steel; development of high-tech and high reliability and passenger locomotives bearing truck bearing steel, adapt bus speed requirements.