Double-row balls slewing ring(Standard series 02)
1.ISO9001:2000
2.Best engineer in China with 40 years experiences
3.Advanced processing CNC
4.Reliable design and manufacture
About the product
The double-row ball slewing ring has three seat-rings.The steel balls and the spacers may bedirectly arranged into the upper and lower raceways.Tow rows of steel balls with different diameters are fitted according to the load.This open mode fitting features extraordinary convence.The load anglesof both upper and lowerraces are 90o,which enable the bearing to bear large axial force and the resutant moment.When the radial force is larger than 1/10 of the axial force the raceways should be especiallydesigned.As the axial and radial dimension of the double-row ball slewing rings are rather large,the bearing construction is sturdy,hence it is especially suitable for tower cranes which requiring working diameter over medium range,mobile cranes and loding and unloading machines.
a.slewing bearing used in generating equipment
b.slewing bearing used in wind power generation
c.slewing bearing used in tower crane
d.slewing bearing used in excavators
e.slewing bearing used in truck crane
f.slewingbearing used in harbor machinery
Chief engineer introduction
Mr.Zheng Xiangchen,graduated from Herbin Military Instrtute of Engineering in 1966.During his college time,
he took study in the School of Engineering Machinery School of majoring in bearing,and participated in the designing and manufacturing of the first turntable bearing in China in 1964.Over the years,Mr.Zheng has been engaged in bearing designing and manufacturing.He used to be the chief scientist of giant enterprises such
as Wafangdian Bearing Gruop.The Φ5082mm Triple-row cylindrical roller slewing bearing used in Qinhuangdao Port today was designed be him in 1995,which replaced the crossed roller slewing bearing imported from Japan.After 2000,Mr.Zheng designed and manufactured manu kinds of slewing bearings which replace imported ones from oversea such as marine slewing bearing which load carrving capacity over 9 million tom-meter,crossed cylindrical roller slewing bearing used in Computer to mography.
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