... Style Slewing Ring has three seat-rings, Steel Balls and Spacers may be poured directly into upper&nether orbits.Two rows ... compact structure,light weight,small assembly-clearance,high installation-precision,and the rollers are arranged across as 1:1 proportion, ... compact structure,light weight,small assembly-clearance,high installation-precision,and the rollers are arranged across as 1:1 proportion, ...