BALL JOINT FOR VEHICLE

摘要

PURPOSE: A ball joint for vehicles is provided to improve durability and to reduce abrasion of a ball seat and a ball by constantly maintaining actuating torque and reducing starting torque. CONSTITUTION: A ball joint for vehicles comprises a ball stud(110), a housing(120), a ball seat(130), a dust cover, and a plug. The ball stud comprises a ball portion(112) connected at a neck portion(114). The housing is connected to the ball portion and accommodates the ball portion. The ball seat supports the ball portions by wrapping around the ball portion and comprises a grease flowing space(132) and an uneven part. Grease flows in the grease flowing space. The uneven part is for smoothly circulating the grease and reducing frictional resistance to the ball portion. The dust cover encloses the ball stud and housing and prevents the inflow of dust into the ball seat. The plug is connected to the housing and fixes the ball seat.