Bearing seat internal sealing device of output roller way internal cooling roller

The utility model discloses a bearing seat internal sealing device of an output roller way internal cooling roller. The bearing seat internal sealing device comprises a bearing seat, a rotary joint and a connecting sleeve, a mounting seat is arranged on the connecting sleeve; the connecting sleeve is integrally arranged at one end of the bearing seat; the mounting seat of the connecting sleeve isfixed with the rotary joint through a bolt; an annular boss is arranged at the front end of the mounting base at the root of the connecting sleeve; a sealing groove is formed in the boss, and the O-shaped sealing ring is arranged in the sealing groove; the bearing is installed in the bearing seat, the head makes contact with the connecting sleeve, and a sealing gasket is arranged at the contact position. Through the O-shaped sealing ring, the connection sleeve and the bearing head are sealed, and a sealing waterproof layer is added. The product quality is ensured and the production efficiencyis improved. 本实用新型为一种输出辊道内