Floating deflection mixing bearing for electric main shaft

The invention discloses a floating deflection mixing bearing for an electric main shaft. The bearing comprises an inner ring, an outer ring, cylinder rollers, steel balls and a retainer cage, wherein the inner ring, the outer ring and the retainer cage are all annular structures, and are concentrically arranged; the two sides of the inner ring have flanges towards the direction of the outer ring; the flanges and the inner ring form a first U-shaped clamping groove structure; the retainer cage is arranged between the outer ring and the inner ring; the inner edge of the retainer cage and the inner ring are at the same side; the outer edge of the retainer cage and the outer ring are at the same side; multiple rectangular pocket holes and spherical pocket holes are alternately distributed on the retainer cage; the long edges of the rectangular pocket holes are perpendicular to a revolving plane of the retainer cage; the cylinder rollers are arranged in the rectangular pocket holes; the steel balls are positioned in the spherical pocket holes; the centers of the rectangular pocket holes and the spherical pocket holes are distributed on one periphery; and the periphery is called as a first center circle. The floating deflection mixing bearing for the electric main shaft, provided by the invention, has such advantages as higher bearing capacity, long service life, high safety, easy machining and high limit rotating speed.