thin bearings
In thin bearings, the material of thin bearing rings could be GCr15 and AISI440C(9cr18) ring, snap-over " pocket, brass or stainless steel continuous ring circular pocket, toroid (Nylon), and steel spacer balls separators.you could choose suitable thin bearings.
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When you purchase thin bearings, you’d better know exactly the detailed working condition, like:rotation speed.
VSG thin bearings include : L type(deep groove ball bearing), M type(Angular Contact ball bearing), N type (four point contact ball bearing)
The thin bearings, as VSG leading product, owns its specially feature, such as slim, smart, good quality etc...
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BlogHunan Xiangtan city leaders to guide the work of Timken Company |
10-20 |
TIMKEN TIMKEN Bearing Company China Limited Hunan Xiangtan municipal leaders 2010.04.30 Tao , deputy inspector of new water Deputy Minister , Office Yuan Xihui City Code , City Code Office deputy researcher Wu Ming and other city leaders to Hunan Xiangtan Timken company guidance .Hunan Timken Company general manager , Mr. James Ai Gete water to guide the work of the new pottery reported Hunan TIMKEN COMPANY , and government roll bearings attach importance to and guide the company deeply grateful. Xiangtan City , Hunan Leading Tao fresh water to guide the work of Timken Company , said: "The government will be great support from the policy , the working group at any time improve coordination of services , the company ball bearing screw a good investment environment . Provide good service for the enterprise , and effectively solve problems for them . " About Timken Company in Hunan : Hunan Timken Bearing Company is the world's largest earlier this year by the United States, one bearing manufacturer Timken Company and Xiangtan Electric Manufacturing Co., Ltd. joint venture , mainly the production of large wind turbine drive spindle Timken bearings , located in Xiangtan high-tech Zone industrial Park in Germany , is the Timken in China 's first six plants. (Timken bearings distributor in China Editor )
anti-foreign bearing steel DCJ2 |
09-26 |
How to use the special circumstances spherical roller steelTo meet this demand, we must make the material, heat treatment process, shape and size optimization, and user needs and the use of the material together to seek the integration of the surrounding parts. Loaded cars, industrial machinery, household appliances, machinery and other mechanical devices intelligence bearing not only requires a lightweight, compact, and improve bearing performance to meet the requirements too harsh environments use:1, anti-foreign bearing steel DCJ2For automotive transmissions and differential spherical roller device, due to the oil mixed with foreign matter (silt, cutting powder), once this foreign objects into the bearing rolling surfaces will produce rolling surface indentation caused by the early spalling resistance to foreign developed for this purpose bearing steel.By inclusion of foreign environment reproducing rolling fatigue test, research to improve the result of the inclusion of foreign environment bearing life, by improving the amount of retained austenite of the surface, to improve the surface hardness and toughness of the matrix have effect.2, high temperature bearing steel STJ2With the car engine output power and continuous improvement in industrial machinery and closure of high-speed, bearing using the ambient temperature rises. Desired to develop a temperature at 473 ~ 523K maintain performance of the bearing. In this temperature range, if the implementation of the quenched SUJ2, the hardness is reduced, rolling fatigue life characteristics deteriorate holes.
Frequently Asked Questions on the bearing material overheat detection |
08-30 |
1 , the friction compatibility
Direct contact with the shaft and the bearing to prevent the occurrence of adhesion and the formation of boundary lubrication properties. Friction factor is the material compatibility :
( A ) forming an alloy metallurgy materials for the vice degree of difficulty .
( 2 ) Materials and lubricants compatibility.
( 3 ) for the secondary materials in non-lubricated friction coefficient .
( 4 ) the microstructure of the material .
( 5) The thermal conductivity of the material .
2 , conformability
Diameter of the shaft and bearing running process, reducing the diameter of the shaft and bearing machining error , concentricity error , the surface roughness , so that uniform contact , thereby reducing friction and wear performance.
3 , corrosion resistance
Corrosion resistance of the material . Lubricants are used in the atmosphere gradually oxidized to produce an acidic substance , and in the most oils also contain extreme pressure additives , they would weaken bearing materials, therefore , the corrosion resistance of the bearing material .
4 , embeddedness
Foreign particles in the lubricant Pliers and prevent scratching or ( and ) abrasive wear resistance. Metal materials, low hardness and a lower modulus of elasticity , and embedded , but not necessarily metallic material , such as carbon graphite, low elastic modulus, but the embedding is not good. Bearings are usually hard material with a soft material and the formation of friction plates , usually with a soft material thin bearings.
5 , the compressive strength
Bearings are squeezed under load possible without the ability to change or size
When the bearing persistent overheating , depending on the circumstances we can take the following steps to fix
A belt tied tight tight coupling assembly or bad in a bad state. Here you can adjust the belt tension , correcting proofreading good coupling to repair .
2 , shaft and bearings with too tightly tied to the contrary or too lax . Tight when re- grinding , corresponding to the shaft should be too loose to fit casement .
3, the motor bearing cap end cap assembly on both sides of the case or the bad state . Repair method is to cover only the mouth or the bearing cap tighten the screws , installed flat and put other measures.
4 , is also possible that the bearing lubricating oil amount is too small , there impurities or oil ring stuck situation. This situation refueling, renewal or repair oil oil ring .
5 , the bearing has been damaged, of course, the situation is less appear , according to the general life of the bearing to be replaced.
6 , the bearing and end caps fit too tight or too loose . When machining the bearing chamber tight , too loose when the end cap inserts steel sleeve .
7 , bearing grease or too much or too little iron and other impurities. Requires knowledge of a general knowledge of the bearing grease volume capacity should not exceed 70% of the total , obvious magazine situation can be promptly replaced.
Five oil lubrication of bearings |
08-30 |
1 , drip lubrication
Drip lubrication oil rationing was needed for cooling tower roll bearings components , drip drop is generally advisable every 3-8 seconds , too much oil will cause the cooling tower SKF bearing temperature increased .
2 , circulating oil lubrication
The filtered oil pump oil transported to the cooling tower components SKF bearings , SKF bearings through the cooling tower and then filtered after cooling lubricant used . Because circulating oil can be taken away some heat , cooling the cooling tower SKF bearings , therefore the law applicable to high speed cooling tower SKF bearing components.
3 , oil bath lubrication
Oil bath lubrication is the most common method of lubrication , suitable for low- , medium-speed cooling tower SKF bearing lubrication , cooling towers , SKF bearings partially immersed in the tank , lubricating oil by the rotation of the cooling tower SKF bearing parts brought up , and then flows back to the oil tank should be slightly lower than the lowest rolling element center.
4 , spray lubrication
Oil pump high pressure oil through the nozzle onto the cooling tower SKF bearings , SKF bearings injection cooling tower cooling tower in the oil through the other end into the tank SKF bearings . SKF Bearing the tower rotates at high speed , the rolling body and the retainer is at a relatively high rotational speed of the surrounding air to form an air flow , using the general method of lubricating oil to the cooling tower is difficult to SKF bearings, the case must use high-pressure injection the method of spraying the lubricating oil to the cooling tower SKF bearings, the position of the nozzle should be placed between the center of the inner ring and cage .
5 , spray lubrication
With dry compressed air through the formation of oil mist mixed with the oil spray , spray cooling tower SKF bearings, air can effectively cool the cooling tower SKF bearings and prevent intrusion of impurities . This method is suitable for high-speed , high-temperature cooling tower SKF bearings lubricated parts .