Double-row roller bearing for fan

The invention discloses a double-row roller bearing for a fan, and belongs to the technical field of bearings, the double-row roller bearing comprises an inner ring and an outer ring, the inner ring is located in the outer ring, the inner ring and the outer ring form a concentric circle structure, a roller path is formed between the inner ring and the outer ring, and a roller is arranged in the roller path; the rollers are distributed between the inner ring and the outer ring in double rows, the adjacent rollers on the same row keep the same angle, the included angle of 40 degrees is formed between the two rows of rollers, isolation blocks are arranged between the adjacent rollers on the same row, and the rollers rotate between the inner ring and the outer ring through roller paths. The flaring direction of an included angle formed by the two rows of rollers faces the outer ring, the rollers are of a cylindrical structure, the sizes of the two rows of rollers are the same, and inner teeth ...

Chip packing structure, chip structure and method for forming chip

Chip packing structure, chip structure and method for forming chip

This is a chip packing structure avoiding gel overflow. It includes a supporter, chip and base gel. The chip is of a gel blocking section and installed on the supporter. The blocking section is to one side of the chip, with a top and bottom face in an acute angle. The base gel is in between the supporter and the chip and blocked by the bottom face of the gel blocking section.