Novel leaf spring seat of heavy -duty car

The utility model relates to a novel leaf spring seat of heavy -duty car, it includes leaf spring support 1, round pin axle 8 and axle sleeve 7, leaf spring support 1 is formed with a leaf spring holding portion, and all sets up porose 6 on the wall of both sides, round pin axle 8 sets up in leaf spring support 1's leaf spring holding portion, and sells 6 one sections distances in the hole of wearing out leaf spring support 1 lateral wall both ends respectively in 8 both ends on the axle, 8 overcoats on the round pin axle are equipped with axle sleeve 7, and axle sleeve 7 can be for round pin axle 8 coaxial rotation. A novel leaf spring seat of heavy truck, changes into rolling contact through the contact with between leaf spring and the leaf spring seat, and rolling friction power is changed into to the sliding friction power that is about to the two, has reduced the acting of the two frictional force effectively to make the wearing and tearing phenomenon of leaf spring seat effectively solved.