ROTARY SEAL UNIT

摘要

PURPOSE: A rotary seal unit is provided to improve the durability thereof by efficiently discharging foreign materials through the spiral structure of a connection groove. CONSTITUTION: A rotary seal unit comprises a rotor (5) and a stator (7). One end of the rotor is connected to the center of a main shaft (3) and is rotated through a shaft. A pair of oil through holes (5a, 5b) separated from each other are formed on the outer surface of the rotor. The stator surrounds the rotor and has a pair of oil ports (7a, 7b) corresponding to the oil through holes. Concave grooves are formed on the outer surface of the rotor and the inner surface of the stator corresponding to the outer surface of the rotor.