The utility model discloses a kind of forklift steering axle structure, including bridge body, upper pin seat and lower pin seat, further include two oil cylinder
assembly, upper pin seat and lower pin seat are connected with steering
knuckle by
kingpin, oil cylinder
assembly is connected with steering
knuckle by connecting rod, further include upper
needle roller bearing, the top of upper pin seat is provided with upper end cover, upper pin seat and steering
knuckle between are provided with one-way thrust
ball bearing;Further include lower
needle roller bearing, the bottom of lower pin seat is provided with lower end cover, the inside of lower pin seat and the inside of upper pin seat are all provided with oil seal.The utility model utilizes in upper pin seat and lower pin seat form a higher sealed space, not only conducive to
grease from oil cup mouth to be blocked by
kingpin end portion and extend to upper
needle roller bearing or lower needle
roller bearing, to realize the sufficient addition of
grease, simultaneously, also conducive to avoiding the leakage of
grease, to guarantee that upper needle
roller bearing or lower needle
roller bearing is always in efficient operating state, avoid its damage, while, improve its service life.