The single row four point contact ball slewing bearing is composed of two seat rings, which is compact in structure and light in weight. The steel ball is in four point contact with the circular arc raceway, and can bear the axial force, radial force and tipping moment at the same time. Rotary conveyors, welding operators, small and medium-sized cranes, excavators and other engineering machinery can be selected.

Consist of two ring seats. Compact structure, light weight, steel ball and arc track contact at four points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.

Configuration and Structural Dimension, Mounting Hole Dimension, Gear Parameter and so on to order, Weight for Check.

Slewing ring for HYUNDAI R55-5, HYUNDAI R60-7, R80-7(81N1-01022), HYUNDAI R110-7, HYUNDAI R130-3,R130-5,130-7, HYUNDAI R150-7,HYUNDAIR150-9，HYUNDAI R210-5/190-5/200-5/220-5，R210W-7，HYUNDAI R215-7/205-7/220-7/225-7，R215-7/R205-7/R220-7/R225-7/R210-7，HYUNDAI R210-9，HYUNDAI R260-7/R260-5/R245-7/R265-7，
HYUNDAI R300-5/290-3/280LC/290LC，HYUNDAI R290-7/305-7/290-9，HYUNDAI R320-9/R330-9/R335-9，HYUNDAI R335-7/320-7，HYUNDAI R360-7/370-7/375-7/385-7-9，HYUNDAI R450-7/455-7，HYUNDAI R450-9/470-9/500-9/485-9

Slewing ring type:QNA715.25.R1,QNA715.25.R2,QNA808.28.R3,QND1004.28.R4,QND1103.25.R5,QND1103.28.R6,QND1103.28.R20,QND1220.28.R7,QND1220.28.R8,QND1220.28.R10,QND1220.28.R10A,QND1220.28.R9,QND1293.38.R12,QND1405.35.R14,QND1405.40.R13,QND1405.38.R15,QNB1405.38.R16,QND1405.50.R17,QND1530.50.R18,QND1605.50.R19