On July 1, 2014, Mr. Wan Nengyi, President of Michelin (China) Investment Co., Ltd., Mr. Wang Zhaohua, Senior Vice President, Mr. Chen Huabin, Deputy Secretary-General of Mianyang Municipal Government and Director of Mianyang City Investment Promotion Bureau, Mr. Chen Qi, Deputy Secretary of Jiangyou City, and his delegation Visited Michelin Special Education School in Jiangyou City, Sichuan Province. As a contributor to the post-disaster reconstruction of the school, Michelin and all its employees have provided dedication and care, and continued to offer love to the people in the affected areas, demonstrating Michelin's commitment to fulfilling corporate social responsibility.
During the visit, Mr. Wan Nengyi and his colleagues visited the school campus and appreciated the students’ handicraft production and martial arts performances, and presented gifts to each student. President Wan Nengyi said: “As a responsible corporate citizen, Michelin not only took immediate action to support disaster relief work after the 5.12 Wenchuan earthquake, but has also been concerned about the growth of children in these disaster areas for the next five years. Michelin’s continued focus on poor areas It is hoped that these educational programs will help children complete their studies smoothly and start a new course of life."
During the event, Mr. Yan Chao, Standing Committee of Mianyang Municipal Committee and Mr. Li Jiang, Secretary of the Municipal Committee of Jiangyou City, met with President Wanneng Yi and thanked Michelin for his assistance. Mr. Li Jiang, Secretary of the Municipal Committee of Jiangyou City expressed: “Thank you Michelin for its profound friendship with the people of Jiangyou. And with strong support for education, Michelin takes an active part in corporate social responsibility and invests in education. Michelin has far-reaching significance in bringing care and help to special children here.â€
After the 5.12 Wenchuan earthquake, Michelin (China) Investment Co., Ltd. and all Chinese employees immediately took concrete actions to support disaster relief and reconstruction, and donated RMB 2.5 million to help the reconstruction of schools that were seriously damaged. The Jiangyou City Michelin Special Education School is located in No. 108, North Section of Huayuan Road, Jiangyou City. It is a full-time boarding school integrating preschool rehabilitation, defect compensation, and vocational and technical education. It mainly recruits deaf and retarded children from Jiangyou and neighboring counties. compulsory education. In the 5.12 Wenchuan Earthquake, parts of the wall of the school complex and student residence hall collapsed, many beams broke, and teaching facilities destroyed. After the disaster, Michelin (China) Investment Co., Ltd. and all Chinese employees reached out to help in the first time and sent care to Jiangyou.
In addition to rebuilding the Michelin Special Education School in Jiangyou City, Michelin has also established a “Michelin Sichuan Scholarship†in cooperation with the Chengdu Education Bureau. The total amount is 2.5 million yuan. This project is used to fund four high school students who have been seriously affected. Since these two projects have been operating for a long time, they have achieved good results and social repercussions.
In addition to the regular scholarship program, during the 2010 World Expo, Michelin also invited outstanding student representatives from disaster-stricken students from the disaster-stricken areas in Sichuan to visit the Michelin headquarters in China, the Michelin Shanghai factory and the French Pavilion at the Shanghai World Expo. Michelin also regularly organizes staff to travel to Sichuan to offer condolences to students and to provide instruction. Michelin’s concern for students in disaster-stricken areas in Sichuan will continue.
The Tapered Roller Bearing belongs to the separation type bearing, and the inner and outer rings of the bearing have a conical raceway. This type of bearing is divided into single, double and four row Tapered Roller bearing according to the number of the roller. The single row tapered Roller Bearing can bear the radial load and the single direction axial load. When a bearing is subjected to a radial load, an axial force will be produced, so another bearing that can withstand the axial force of the opposite direction is needed to balance it.
There is a single row tapered roller bearing outer ring, the inner ring and a conical roller by maintaining a basket frame into the inner module. The outer ring can be separated from the inner ring assembly. According to the standard of the ISO tapered roller bearing dimension, any standard type tapered roller bearing outer ring or inner ring assembly should be able to achieve international interchangeability with the same type of outer ring or inner ring assembly. For example, the outer ring of the same type should conform to the ISO492 (GB307) rule besides the external dimension and tolerance. The conical angle of the inner ring assembly and the diameter of the component cone must also comply with the relevant provisions of the interchangeability.
Usually, the conical angle of the outer raceway of the single row tapered roller bearing is between 10 degrees ~19 degrees, and it can simultaneously bear the joint action of axial load and radial load. The larger the cone angle, the greater the ability to bear the axial load. The bearing of the big cone angle, the postposition code plus the B, the cone angle between 25 degrees ~29 degrees, can bear a large axial load. In addition, the single row tapered roller bearing can adjust the size of the clearance during the installation process.
The outer ring (or inner ring) of a double row tapered roller bearing is a whole. The two inner ring (or outer ring) has similar small end faces, and the middle has a spacer. The clearance is adjusted by the thickness of the spacer, and the pre interference of double row tapered roller bearings can also be adjusted by the thickness of the spacer.
The performance of the four row tapered roller bearing is basically the same as that of the double row tapered roller bearing, but the radial load of the double row tapered roller bearing is greater than that of the double row tapered roller bearing, and the limit speed is slightly lower, which is mainly used for heavy machinery.
Multi seal double, four row tapered roller bearings, ZWZ provides long life, multi seal double, four row tapered roller bearings. The new design of the bearing is personalized and the traditional design method of the fully sealed bearing is changed. A new seal structure combined with seal and dust-proof is adopted to improve the sealing effect and improve the sealing performance. Compared with open structure bearings, the life of multi seal double and four row tapered roller bearings increased by 20% to 40%, and the consumption of lubricants was reduced by 80%.
Tapered roller bearings are widely used in automobile, rolling mill, mine, metallurgy, plastic machinery and other industries.
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