2013年10月24日星期四

type and NU type can move axially


Cylindrical roller Stainless steel slewing bearing (cylindrical roller bearing)
Rolling element is a cylindrical roller bearing to the heart.
Cylindrical roller bearings
Cylindrical roller and raceway contact bearings. Load capacity, mainly bear radial load. Rolling ring wall with small friction, suitable for high-speed rotation. According to ring without ribs can be divided into NU, NJ, NUP, N, NF and other single row bearings, and NNU, NN and other double row bearings. The bearing is the inner, outer separable structure. Inner or outer wall of the cylindrical roller bearings, the inner and outer rings can be relative to the axial movement, so it can be used as a free-end bearings. In the inner and outer side of a double wall, the other side of the ring has a single wall of the cylindrical roller bearings, can withstand a certain degree of axial load in one direction. General use of steel stamping cage, or copper alloy machined cage. But there is a polyamide forming cage.
Cylindrical roller tapered bearing Features:
1 roller and raceway contact or repair offline contacts, radial load capacity, suitable to withstand heavy load and shock load.
2 small friction coefficient, suitable for high speed, speed close to deep groove ball bearings.
3. N type and NU type can move axially, to accommodate misalignment due to thermal expansion or of the shaft and the housing due to changes in relative position, can be used for supporting the free end.
4 pairs of shaft or housing bore machining higher, bearing outer ring axis relative deflection after installation should be strictly controlled to avoid contact stress concentration.
5 inner or outer ring detachable, easy installation and removal.
Main purpose:
Medium-sized motors, locomotives, machine tool spindle, internal combustion engines, generators, gas turbines, gear boxes, rolling mill, vibrating screen and lifting and transport machinery.

2013年10月19日星期六

scraping examination can show agents


 when the contact area reaches 50%, it should scuffing. Every once scraped off, wipe the tile surface, and then displayed on the journal repellent check inspection, according to the conditions of exposure scraping until it meets the technical requirements so far.
scraping examination can show agents, but the contact point demanding precision Cylindrical roller bearing  scraping the last stage can not use the display agent. Because, painted display agent, coloring bearing point is too large and difficult to determine the actual exposure situation. At this point, you can wipe the journal, backing bearings directly on the check, and then remove the shaft, the bearing can be seen on the highlights, is the point of contact. And then the highlights for scraping until meet the technical requirement.
Scraping, not only to make the contact points meet the technical requirements, but also to make the contact angle of the side clearance and technical requirements. Usually the first point of contact research, but also to take care of the contact angle, the last Zaigua backlash. However, the contact portion and the non-contact portion not have clear boundaries, wipe the bearing surface with fingers, no trace should be aware

2013年10月9日星期三

SKF delegation paid a visit to Henan University of Technology


SKF delegation once again visit Henan University of Technology
Henan SKF Stainless steel slewing bearing sales center there is news that today one of the world's largest bearing company - SKF Group , recently sent a delegation to visit again , Henan University of Technology ( HKUST referred River ), SKF delegation and the river HKUST the leadership of Mechanical Engineering on personnel training, joint tapered bearing basic technology research and academic exchanges , and business products and technology demonstrations and other issues were widely discussed and reached consensus on a number of intentions and . We follow Henan SKF bearings distributor SKF Group sales center to find access to Henan University of Technology on behalf of the whole process .
Henan University of Technology is located in the historical and cultural city , the modern industrial and tourist city of Luoyang . Last December , SKF delegation paid a visit to Henan University of Technology , the SKF Group re-visit the river HKUST delegation SKF Group Human Resources Director Asia and Ms. Tina Jiang SKF Bearing China Ltd. , Henan tribology and lubrication experts University professor Dr. George TYWan line of five people . SKF Group Asia Director of Human Resources Ms. Tina Jiang introduced the SKF Group and the Chinese company's organizational structure, management philosophy, corporate culture and human resource development . And listen to the river HKUST College of Mechanical and Electrical Engineering , bearing professional personnel training and the introduction of basic scientific research . The two sides exchange visits of experts to give lectures , scientific and academic cooperation , personnel training and other aspects to achieve cooperation and consensus.

2013年10月8日星期二

U.S. Timken employees worldwide


TIMKEN company in 2009 in the global corporate social responsibility achievements In the global economic environment is not optimistic backdrop, business ethics, corporate social responsibility and the ball is now the home of enterprise development priority. We learned from Timken Stainless steel slewing bearing distributor in China , Timken Company in 2009, the global corporate social responsibility achievements are as follows , and TIMKEN appeared in the " Global 100 Most Ethical Companies list"
United States TIMKEN company in 2009 in the global corporate social responsibility achievements
 1 United States TIMKEN company's first pair of Timken worldwide staff of Business Ethics Policy training and certification ; in the business , regional and corporate compliance committee under the leadership of , TIMKEN companies take the initiative to identify and reduce the risk of the occurrence of the enterprise core values ​​into practice ;
2 U.S. Timken Company support local investment projects, including the construction of water recycling in Bangalore, India and wastewater treatment systems to help the region 's farmland irrigation ; through donations of land and financial support to help build the U.S. state of South Carolina Utah Niang County (Union County ) community sports venues ;
 3 United States TIMKEN company eventually leading companies to fulfill environmental commitments, including : TIMKEN company since 2008 for EAF dust backing bearings , reducing 31,000 tons of landfill ; TIMKEN Company recycled packaging innovations annual reduction the six million pounds of waste generated ; TIMKEN company recycling nearly 300 tons of metal scrap to produce new steel products . Timken makes steel products, raw materials from almost 100% recycled materials ;
4 U.S. Timken employees worldwide , and dedication of thousands of volunteer hours into the relevant organizations in leadership and community service , including the " Habitat for Humanity (Habitat for Humanity)", " Junior Achievement organization (Junior Achievement) "," United Way (United Way) " and many other social and educational charity. 2009 , Timken Timken Company Charitable Fund and invested in the construction of community and educational donations amounting to $ 2,400,000 ;
TIMKEN company's global corporate social responsibility in environmental achievement and contribution to business ethics in the industry for all to see . This has fully demonstrated its global corporate social responsibility for co clear understanding of business ethics , namely: business practices adhere to the highest standards not only related to the company 's reputation , but also, and business performance and profitability are closely related. TIMKEN Bearing Company keeps the world turning, with innovative friction management and power transmission products and services to help customers business ethics mechanical equipment operation more efficient and more reliable.

2013年10月7日星期一

It is reported that the original transformer used for the S7 -type transformers, is the 1980s products


Within two years of high energy transformers "laid off " Source: Published: 2011-
Cixi : within two years of high energy transformers "laid off "
WASHINGTON ( Reporter correspondent Zhang Lu Li Li ) Recently, the City Power Supply Bureau powered by city staff came Yu Bo community , the community S7 -type high- energy transformer replacement for the new energy saving amorphous alloy distribution tapered bearing , reduce power loss. So far, over 35 units within the city limits S7 ​​-type transformers are replaced with high energy saving and environmental protection -type transformers.
To actively respond to national call for the elimination of backward production capacity , accelerate the construction of new rural electrification , increase the energy saving new equipment applications . Recently, the City Power Supply Bureau launched a comprehensive high-energy transformer replacement work , a new round of rural power grids in the process of implementation of the elimination of old transformers work .
It is reported that the original Roller bearing used for the S7 -type transformers, is the 1980s products , power loss, has been unable to further meet the increasing distribution network power quality and reliability , and vigorously promote the new energy-efficient distribution transformers is imperative. In this high-energy transformer replacement work , S7 -type transformers will all be replaced with new energy-saving transformer - saving amorphous alloy distribution transformers . Energy amorphous alloy distribution transformer "posts ", the 10 kV line to reduce line loss rate . This is a loss of the transformer itself is only a year can reduce the energy loss of about 30 million kilowatt hours and reduce carbon emissions of approximately 265 tons .
Currently , the city 's other 62 units within the S7 -type transformer replacement work is proceeding as planned steadily. Transformer replacement is completed within the city limits , the city Bureau will comprehensively promote the rural power transformer replacement work , the next two years will be full of high energy transformers exit the city grid.