Dust cover

A dust cover for use in a ball joint including a ball stud having a spherical part at one end of a shaft part thereof, a socket that has a bearing for the spherical part and supports the ball stud in a rotatable and swingable manner, and a coupling member that couples with the shaft part on a side of the shaft part opposite to the spherical part,

• the dust cover comprising:
• a deformable body part;
• a fixed part provided on one end side of the body part and fixed to the socket;
• and
• a sealing part provided on the other end side of the body part and provided slidably relative to the shaft part and the coupling member,
• the sealing part including:
• an inner peripheral sealing part that can slide relative to an outer peripheral surface of the shaft part;
• and
• a dust lip part that is configured to be inclined radially outwardly and toward the other end side, and that can slide relative to an end surface of the coupling member, wherein
• an annular protrusion that protrudes radially outward is formed at an end of the sealing part on the other end side, and
• an outer peripheral surface of the dust lip part extends toward the other end side from a recessed part of the sealing part being recessed axially toward the one end side with respect to an end surface of the annular protrusion on the other end side, wherein the dust lip part extends axially toward the other end side to a greater extent than the end surface of the annular protrusion.