Supporting device of rotating body for traveling

The utility model provides a supporting device of a rotating body for traveling. The supporting device of the rotating body for the traveling aims to improve durability of a sealing component through the sealing component arranged between a shaft body and a supporting barrel and used for preventing intrusion of mud water and others. A sealing component (60) is installed between the outer circumferential face of a shaft sleeve (50) nested outside of a shaft body (30) and the inner circumferential face (40a) of a supporting barrel (40). The shaft sleeve (50) is provided with a sealing component installation portion (51), a handle portion (52) and accumulation spaces (S), wherein the sealing component installation portion (51) can be used for outward nesting and installing the sealing component (60); the handle portion (52) extends towards a barrel end opposite component (31) in a greater degree than the sealing component installation portion (51), and the outer diameter of the handle portion (52) is identical w