The double-row slewing ring has three seat-ring. the steel balls and spacers may be directly arranged into the upper and lower raceways. two rows of steel balls with different diameters are fitted according to the load. Such open mode fitting featurextraordinary convence. the load angles of both upper and lower race are 90, which enable the bearing to bear large axial force the resutant moment. When the radial force is large than 1/1
[Last Updated: 2009-09-29 04:05:57]