Home > keywords

agricultural bearings

Related

"Agricultural Bearings"

Products
Related

"Agricultural Bearings"

Blog
agricultural bearings What is the angular contact ball bearing
2015-08-12
Angular contact deep groove ball bearing, thrust ball bearings to the heart that is usually said, the allowable working speed and deep groove ball bearing is similar, but the support rigidity ratio of deep groove ball bearing is stronger, mainly because of the bearing steel ball is more, the radial load capacity than the ordinary ball bearing, but ... Angular contact deep groove ball bearing, thrust ball bearings to the heart that is usually said, the allowable working speed and deep groove ball bearing is similar, but the support rigidity ratio of deep groove ball bearing is stronger, mainly because of the bearing steel ball is more, the radial load capacity than the ordinary ball bearing, but also bear large axial load or subject to pure axial load. The bearings are generally used in pairs, used for Small Span Rigid double supporting shaft or precision spindle, can improve the rigidity of the bearing system.Can bear radial load and axial load for angular contact ball bearing. Can work at a higher speed. The larger the contact angle, the higher the three row roller slewing bearing. High precision and high speed bearings usually take 15 degrees contact angle. Under the action of axial force, contact angle increases. The axial load of single row angular contact ball bearings can bear a direction, in radial load, will cause additional axial force. The axial displacement of the bearing can limit shaft or shell in one direction. If quality.the installation, the outer ring of a bearing on the relative, the wide end of the wide face, narrow end face with narrow end. So to avoid the additional axial force, but also in the two direction of the shaft or shell limit in the axial clearance range.Because of its inner and outer ring raceway can have relative displacement on the horizontal axis angular contact ball bearing, can bear radial load and axial load -- combined load (single row angular contact ball bearings can only endure single direction axial load, mounting is often adopted to them). View Details
drivenagricultural bearings rail transportation , medical equipment
2015-08-12
Domestic bearing casting of high-end equipment industry shoulder the important mission of localization , under the guidance of the Twelfth Five-Year Plan , China's bearing industry has developed foundry industry development plan , drawn up in order to project and export pulling two carriages bearing the domestic foundry industry the policy deve... Domestic bearing casting of high-end equipment industry shoulder the important mission of localization , under the guidance of the Twelfth Five-Year Plan , China's bearing industry has developed foundry industry development plan , drawn up in order to project and export pulling two carriages bearing the domestic foundry industry the policy development.It is understood that in all areas , driven agricultural bearings rail transportation , medical equipment , new energy , aerospace , automotive lightweight, rail transportation and other development , China's foundry industry bearing significantly improved. Bearing foundry industry triple row roller slewing bearing actively explore new markets while traditional markets steady progress , even in the past ignored edge market has also been developed .According to the relevant planning during the second five , the construction of high-speed rail will usher in the peak , in 2011 the national railway infrastructure investment plan to 700 billion yuan for the entire high-speed rail equipment manufacturing enterprises to provide a huge market opportunity . According to "long-term railway network plan ( 2008 adjusted ) " 2012 China will build 42 high- speed railway , the total mileage of more than 13,000 kilometers , which will form the new EMU needs 800 of 2020 our high-speed railway mileage will reach 18,000 km , for our high-speed rail bearings provide a broad market space. agricultural laddle turret bearing   the next three years of high-speed rail market will be more than 20 billion . The survey found that as the field of high- speed trains bearing iron -based parts , but it is the Swedish SKF, German FAG, NTN , Japan and other international giants firmly occupy the Chinese market .The bearings are key components of the national major technical equipment , the current cars, high-speed rail , wind power, precision machine tool spindle bearings supporting the bearings and other high-end has been the soft underbelly of China's bearing industry , over-reliance on imports. Due to the development of China's bearing industry can not keep up , the strong pull of imported bearings . As in the great development of high-speed railway , the speed of 200 km above the EMU bearing all imported and domestic currently able to meet only about 160 kilometers locomotive bearing .Although a small portion of domestic enterprises can cast level 200 kilometers per hour EMU bearings, but still related to the purchasing department will use imported parts , bearing the field of high-end prospects bleak . View Details
Leakproof province bearing grease bearings
2015-05-20
This bearing retainer is not a prior prefabricated reassembled, but even after the separate rolling element bearing clutch collars and ultrahigh molecular weight polyethylene is mixed with the grease, filled inside the agricultural bearings space, and then heated to form the holding frame. In this cage in the grease was firmly fixed resin material,... This bearing retainer is not a prior prefabricated reassembled, but even after the separate rolling element bearing clutch collars and ultrahigh molecular weight polyethylene is mixed with the grease, filled inside the agricultural bearings space, and then heated to form the holding frame. In this cage in the grease was firmly fixed resin material, for those in the past due to grease leakage caused by reduced bearing life and grease contamination issues surrounding the environment, this is an ideal bearing products.NTN Corporation as the exclusive development of products, based on the amount of grease filling in two forms: one is the micro-oil type, grease it contains the minimum amount of bearing lubrication is required; the other is a lot of oil type cage material mixture of polyethylene and grease the bearing internal space is filled full. Whether it is a large amount of trace oil type or oil-type, which is characterized in common:1, the grease leakage rarelyAs a result of bearing grease is fever, centrifugal force and other factors gradually increase in precipitation were to rotate cage surface supply, so the grease leakage is minimal. Compared with the general grease lubrication, which can effectively prevent contamination of the surrounding environment.2, excellent lubricating propertiesEven severe vibration or enormous centrifugal force acting on the bearing grease is difficult to leak, it will not because of the intrusion of water flowing out emulsify the grease, so grease lubricating properties than the average to be superior.3. Turn the torque bearing smallTrace bearing grease lubrication method was stirred almost no resistance, rotational torque of the bearing is small.4, the sealing effectThis cage invasive alien object moisture, dust, etc., there is a certain barrier effect, but use it as a sealing device is not sufficient, especially for those who require a particularly high sealing performance of the occasion, or to the use of contact rubber seals such as deep groove ball ball and roller combined bearing, bearing units, seals, or other forms of construction.  View Details
Crossed roller bearings
2015-05-18
Assembly points and quality measuresThin-walled cross roller bearings according to its structure, the assembly stage needs to grasp the bearing clearance control, rotary accuracy and stability of 3 points, cross roller bearings belong to special bearings with high precision, is mainly used in CNC machine, robot arm, as well as medical and military ... Assembly points and quality measuresThin-walled cross roller bearings according to its structure, the assembly stage needs to grasp the bearing clearance control, rotary accuracy and stability of 3 points, cross roller bearings belong to special bearings with high precision, is mainly used in CNC machine, robot arm, as well as medical and military equipment, which are wind power bearing double row roller in a 45 degree tilt angle roll cross distribution channel, can maintain high rigidity on the roller and raceway contact line, but also because of a 45 degree tilt angle raceway can be uniformly load of axial and radial bearing, perfect overturning or torsional moment; in addition, cross roller bearings with negative clearance design and pre tight, can high rigidity bearing guarantee (compared with traditional models, rigid increase 3~4 times) and high precision, cross roller bearings precision Luoyang Boying bearing is in P5 above, basic accuracy of P4, P2, belongs to high precision bearing:1 crossed roller bearing clearance control bearing production processes in the two process to ensure the bearing clearance, a bearing end grinding, Thin section bearings agricultural bearing sleeve so need beforehand medium size of test equipment, test equipment with rotary bearing is smooth, the negative clearance has a slight pressing feeling, can ensure the roller and the raceway with clearance at around 0.01mm, preparing for the next assembly; second procedures for fitting test equipment, the bearing does not install the isolation block or holder of test equipment, there are 5 groups of roller for choice, according to the assembly member feel and a dial indicator measuring judgment clearance is required, if don't be by replacing the roller and raceway grinding to finish the match, this method can also be used in the production of the turntable bearing YRT, is commonly used in bearing production method, just cross roller bearings are precision bearing, clearance requires precise control;2 rotary accuracy and stability control; through production practice experience for many years we know, rotary precision cross roller bearings and YRT turntable slewing bearing bearing mainly, and the raceway quality and deformation, therefore, all bearing before shipment is half finished product assembly, prevent long after placing deformation, and thin-walled cross roller bearings in the grinding time by tempering 2 times treatment, ensure the material stress release caused by deformation of the risk to a minimum; the actual assembly of a rotary impeded, the bearing cleaning, check whether there is damage raceway, then the accuracy of roundness and flatness.Measuring, Cengcengbaguan to ensure the bearing quality. View Details
the surface cleaning method
2015-05-14
1, surface cleaning: cleaning must be in accordance with the nature of the surface rust and the prevailing conditions, the appropriate method is selected. Commonly used solvent cleaning, chemical treatment and mechanical cleaning method to clean.2, the surface was cleaned by washing by filtration and dried in the drying compressed air, or a dryer 1... 1, surface cleaning: cleaning must be in accordance with the nature of the surface rust and the prevailing conditions, the appropriate method is selected. Commonly used solvent cleaning, chemical treatment and mechanical cleaning method to clean.2, the surface was cleaned by washing by filtration and dried in the drying compressed air, or a dryer 120 ~ 170 ℃ is dried, dry clean gauze can also be used.Second, anti-rust oil coating method:1, soak method: Soak in some small items single-row crossed roller slewing bearing using anti-rust oil, allowed a layer of rust on the surface adhesion method grease. The film thickness can be achieved by controlling the temperature or viscosity rust preventive oil.2, brush or spray for NA immersion outdoor construction equipment or special shape products, we should pay attention when brushing does not produce accumulation, but also pay attention coated to prevent leakage.3, spray some large rust-proof material coated with oil immersion method can not be used, usually with about 0.7Mpa pressure spraying compressed air filter in the air cleaner place. Spray application of anti-rust oil or solvent dilution thin rust oil, but it must be used to improve fire safety and labor protection measures. View Details
Heilongjiang special rectification of agricultural machinery bearings market
2015-03-06
In order to regulate the agricultural market order, protect the interests of farmers, industrial and commercial departments in Qing'an county, Heilongjiang in 2010 to the local agricultural bearings market carried out special rectification.  During the inspection, law enforcement officers found, counterfeit brand bearing part of a large nu... In order to regulate the agricultural market order, protect the interests of farmers, industrial and commercial departments in Qing'an county, Heilongjiang in 2010 to the local agricultural bearings market carried out special rectification.  During the inspection, law enforcement officers found, counterfeit brand bearing part of a large number of agricultural store sales of various specifications, among them with fake Kazakhstan axis, the influx of money card bearing and excavator bearing are Japanese NSK.   According to the briefing, the bearing( rotary bearing ) is a key part of an agricultural tricycle, walking tractor, rice transplanter seeding machine, agricultural machinery bearings, these counterfeit shoddy, will seriously affect the agricultural machinery service life of farming, delay time, even endanger the personal safety of farmers.  The checks were seized counterfeit bearings 5 varieties, more than 20 types of more than 200 pieces, worth more than 10 thousand yuan. View Details