High-precision automobile clutch disc hub core

The utility model relates to the technical field of clutch disc hub cores, and discloses a high-precision automobile clutch disc hub core which comprises a disc hub piece, the upper side and the lower side of the disc hub piece are fixedly connected with circular rings, the inner walls of the circular rings and the inner wall of the disc hub piece are fixedly connected with tooth blocks, and a first arc-shaped plate is arranged at the bottom of the disc hub piece in an attached mode. A second arc-shaped plate is attached to the upper surface of the disc hub piece, and third arc-shaped plates are fixedly connected to the side, away from the circular ring, of the first arc-shaped plate and the side, away from the circular ring, of the second arc-shaped plate. According to the utility model, the third arc-shaped plate can be tightly contacted with the disc hub sleeve after the disc hub core is inserted into the disc hub sleeve through the thrust of the spring on the elastic bracket to the sliding block, and mean