three row roller slewing , slewing bearing

الوصف

Three row pole slewing ring has three seat-rings , which separate the upper , lower and radial races , via which the load of each row of the rollers may be specified , It may bear different loads simultaneously and its load capacity is very large . Thank to the large size of its axle and radius , it is sturdy and especially suitable for heavy –duty machines which require large working radius , such as bucket-wheel excavators , wheeled cranes , ship cranes , ladle turret , heavy duty mobile cranes etc .