SKF authorized agents - elm NTN distributor-NTN Bearing distributor 
 SKF authorized agents - elm NTN distributor-NTN Bearing distributor 
 First, the vibration of SKF bearings. 
 In normal use, the vibration of the bearing damage is very sensitive, peeling, indentation, corrosion, cracks, wear, etc. will be reflected in the bearing vibration measurement. So, by using a special bearing vibration measurement (frequency analyzer) to measure the size of the vibration frequency can not infer the exception of the specific situation. The measured values ??due to different conditions of use of the bearing or sensor installation location, determine the criteria for judging prior to the measured value of each machine. 
 Second, the temperature of the bearing. 
 High temperature is often said that the SKF bearings in unusual circumstances. The high temperature is also harmful to the bearing lubricant. Sometimes bearing overheating can be attributed to the lubricant in the bearing. Bearing more than 125 ° C temperature long-term even move to reduce bearing life. Caused by high temperature bearing the reasons include: lack of lubrication or excessive lubrication, lubricants. Containing impurities, the load is too large, bearing loss of the ring, lack of space, and oil seals produce high friction. 
 Rolling bearings should not be removed from the parts must be removed when the right tools and methods should be used. 
 2, in front of the assembly Rolling should be based on the rust-proof way of rolling bearings, selection of appropriate cleaning agents and methods of cleaning clean. 
 3, in the application before assembly, outside micrometer to check the inner diameter of the bearing sleeve and journal diameter tolerances must comply with the requirements of the drawings. 
 4, roller bearing mounted on split bearing, the bearing cap and bearing joint surface should be no gap, but the bearing outer ring and bearing on both sides of the tile mouth should stay out of the gap. Tile port side of the gap can be used a feeler gauge to check, if the gap is too small or folder help "phenomenon, the available scraper scrapers, to increase the gap, and in accordance with Table" Rolling with the outside bearing clearance. 
 5, the rolling bearing assembly into the law pressed into the law and hot charging. Into the law in the thump when using a copper rod or casing as a tool to transmit force, so that the role of force in the bearings symmetry. The indentation method is to use the press instead of hammering still use the casing to pass power. Thermal loading when the flame is strictly prohibited direct heating, application of 80 ~ 90 ℃ hot oil heating, oil temperature should not exceed 100 ℃. Shall not contact with the heating tank seat bearing heating should be bearing hanging in the reservoir Central, in order to avoid local overheating caused by annealing. 
 Heating time shall not be less than 15min, the inner sleeve expansion to the required value after the assembly. Shall not pause, the hot charging process should be fast time bearing mounted to the correct location. Such as bearing steel ball cage is not oil resistant plastic, it is desirable that the water heating, but the assembly should be to dry the moisture. 
 SKF authorized agents - elm NTN distributor-NTN Bearing distributor 
 6, when the rolling bearing assembly shall meet the following requirements: 
 ⑴ should be checked after cleaning bearing, the bearings should be no damage, corrosion, flexible rotation no abnormal sound, check the bearing and journal bearing with the category and size, to meet the requirements before the assembly; 
 ⑵ assembly of the bearing when the applied pressure should be evenly distributed and perpendicular to the face, ban anti-sided force. Selected according to the assembly relationship stress points, such as the assembly to the journal on the bearing pressure should be added to the bearing inner ring; 
 ⑶ assembly, bearings and shaft shoulder should try to be, tapered roller bearings and thrust bearing and the shaft shoulder for a gap not greater than 0.05mm, the other bearing no larger than 0.1mm. Bearing cap and retaining ring must be formed, and even close to the end face of the bearing according to the technical documentation requirements to adjust to stay out of the gap; 
 ⑷ assembly bearing on the end of the note specifications out, easy to check and replace. Assembly by hand after the rotation to check for jam phenomenon, and then raise the right amount of grease. Seals must be required to assembly, sealed without leakage; 
 SKF authorized agents - elm NTN distributor-NTN Bearing distributor 
 ⑸ single row, double row and four tapered roller bearings, thrust bearing, check the axial clearance, and bearing the standard or technical document assembly should be adjusted; 
 ⑹ various radial bearings, needle roller bearings, spiral roller bearing assembly must be flexible rotation. Grease the bearing assembly and the bearing cavity to inject 65% to 80% of cavity volume of clean grease to bearings lubricated with thin oil, are not allowed to inject grease. 
 ⑺ assembly bearing axial clearance should be adjusted axial preload extent of (axial pre amount of interference), shall comply with the bearing standard or equipment technical documentation requirements. 
 The Tianjin Shi Ji Ruixin Bearing Co., Ltd. for many years committed to: SKF imported bearings, NSK bearings, NTN imported bearings, NACHI imported bearings, KOYO bearings, FAG import bearing, the INA imported bearings TIMKEN the imported bearings and other well-known imported bearings sales . 
 The products involved: deep groove ball bearings, cylindrical roller bearings, tapered roller bearings, aligning ball bearings, spherical roller bearings, needle roller bearings, angular contact ball bearings, thrust ball bearings, thrust roller bearings, bearing joints, spherical bearings, linear guide series. 
 Applicable industries: iron and steel metallurgy, port machinery, petrochemical, automobile manufacturing, machine tools and paper industry. 
 Sales all over Guangdong, Guangzhou, Dongguan, Foshan, Chengdu, Shenzhen, Zhongshan, Zhuhai, Wuhan, Shenyang, Taiyuan, Urumqi across the country. 
 Sai Ji Ruixin relying on the geographical advantage of the coastal Tianjin Port, with the price advantage and quality advantage of the company's products, has developed into a trading company of considerable size bearing. Has its own bonded warehouse in Tianjin Port also won the trust of our customers and support. 



 Tel) 86-022-87885861 (Miss Chang) 
 QQ 1945759772 
 Web site: http://www.sjrxzc.com 


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 SKF authorized agents - elm NTN distributor-NTN Bearing distributor