Combined powder metallurgy gear convenient to assemble

The utility model relates to the technical field of powder metallurgy gears, and discloses a combined type powder metallurgy gear convenient to assemble, which comprises a tooth sleeve and a tooth core arranged in the tooth sleeve, a rotating groove is formed in the tooth core, a rotating disc is arranged in the rotating groove, and the rotating disc is connected with the tooth sleeve. A plurality of ball cavities are formed in the two sides of the outer wall of the tooth core in the circumferential direction, balls are arranged in the ball cavities, and a plurality of ball groove holes matched with the balls are formed in the two sides of the outer wall of the rotating disc in the circumferential direction; according to the utility model, the structure is simple, during dismounting, only the rotating disc needs to be rotated to enable the ball groove holes to be in one-to-one correspondence with the ball cavities, so that the balls lose the extrusion force of the outer wall of the rotating disc, the balls ar