Wheel end disc brake shaft convenient to maintain

The utility model discloses a wheel end disc brake shaft convenient to maintain, which relates to the technical field of disc brake shafts and comprises a connecting component and a lubricating component. The connecting assembly comprises a brake disc hub, a bearing outer ring is arranged on the inner wall of the brake disc hub, a retainer is arranged on the inner wall of the bearing outer ring, a rotor is rotationally connected to the inner wall of the retainer, two arc-shaped grooves are formed in the front face of the retainer, and two inferior arc grooves are formed in the two sides of the bottom end of one arc-shaped groove. The beneficial effects of the utility model are that the inner surfaces of the four arc-shaped sheets and the inner surfaces of the two grease smearing plates are smeared with lubricating grease, the two grease smearing plates slide into the two arc-shaped grooves, the four arc-shaped sheets respectively slide into the four minor arc grooves, the lubricating grease contacts with a ro