Solid retainer and reinforced solid tapered roller bearing

The utility model provides a solid retainer and a reinforced solid tapered roller bearing. The bearing comprises an inner ring, an outer ring, a tapered roller and a solid retainer, wherein a plurality of roller mounting holes are milled in the circumference direction of the solid retainer by a numerical control milling machine, each mounting hole is shaped like a radial straight hole of which the angle is same as a contact angle with the roller; a solid part of the solid retainer comprises two sides rings and a plurality of lintels between the rings; two lock points are symmetrically arranged on the side of each lintel, respectively; a square slot formed by two square bumps is adopted as each lock point and an arc-shaped surface matched with the roller is milled in the square slot; the tapered roller guides the retainer to rotate by the lock points on the solid retainer; a U-shaped slot matched with the tapered roller is arranged on the outer surface of the inner, the tapered roller is mounted from the mounting hole of the outer side of the solid retainer and form an inner ring assembly together with the inner ring. The bearing has the advantages of high bearing capacity, long service life, smooth and steady running, low friction, good lubricating property, good damping property and the like.