Beijing Jietaihongli Technology Co., Ltd. |
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Slewing Bearing for Construction Drilling kelly bar
Slewing ring bearing(slewing ring),is a bearing that able to
bear a large axial load,radial and overturning torque.Slewing
bearings are generally accompanied with installing holes,inner
gear,outside gear,lubricating hole and sealing device,which enable
mainframe structure compact in design,guide reliable,and easy to
maintain.
Slewing bearings are combination structure including
non-gear,outside gear and four point contact ball bearings,double
angular contact ball bearings.cross-cylindrical roller bearing and
three rows cylindrical roller bearings and so on.In which,four
point contact ball bearings have higher static load capacity,while
corss-cylindrical roller bearings have higher dynamic load
capacity.
Slewing bearing widely used in lifting
machinery.excavate machinery,construction machinery,port
machinery,ships machinery,as well as precision radar launchers and
large rotary devices such as missile launcher.
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