Bearing easy to assemble

The utility model belongs to the technical field of bearings, particularly relates to a bearing easy to assemble, and provides the following scheme aiming at the problems that an existing bearing is formed by combining a bearing outer ring, a bearing inner ring and a plurality of balls, the assembling process is troublesome, a lubricant is inconvenient to smear, and the processing and production efficiency is reduced. The bearing comprises a bearing inner ring and two bearing outer half rings, a square opening groove and two round opening grooves are formed in one side of each bearing outer half ring, a square rod and two round rods are fixedly installed on the other side of each bearing outer half ring, an installation groove is formed in the top of each bearing outer half ring, a square plate is vertically installed in each installation groove in a sliding mode, and the square plate is fixedly installed on the top of each bearing outer half ring. And a clamping plate is fixedly mounted at the bottom of the