Single Row A Crossed Roller Slewing Ring

This Single Row a Crossed Roller Slewing Ring is comprised of an Inner Ring, Outer Ring, cylindrical rollers and seals. Hardened V-groove raceways provide two roller paths for the cross rollers (alternating rollers at right angles). Each set of alternating rollers take the load in one direction. This design provides increased capacity, greater stiffness and a lower spring rate per unit size than the single row four-point contact design. With its rectangular design, this bearing is available in Internal, External, or no-gear designs.
Typical Capacity Range:
LoadEnglishMetric
Axial (Thrust)80,000 a 2,700,000 lb355,858 a 12,010,200 N
Radial16,000 a 800,000 lb 71,172 a 3,558,577 N
Moment16,000 a 6,700,000 ft-lb 21,693 a 9,083,994 Nm

Typical Size Range mm (inch)
O.D.I.D.Width
602 (23.7)398 ( 15.7)75 (2.95)
4726 (186)4272 (168)134 (5.28)

XZXD Slewing Ring Bearings:
Turntable Bearings
Single row a four point contact ball
Single row a crossed roller
Double row a angular contact ball
Three row a roller
Ball/Roller combined

Typical Applications:
Excavators, machine tools, radar and satellite antennas, lift truck rotators, capstans, mining equipment, industrial turntables, turrets.