The wheel device contains a base, an axle rotatably running through the base, two sleeves each having an axial through channel for the axle to run through; and two wheel members each having an axial first socket open to an inner side of the wheel member for joining with an end of the axle. The axle has a first neck section adjacent to each end of the axle with a small diameter than the axle's other sections. Along the axial through channel of each sleeve, there is a narrower first collar section. Inside the first socket of each wheel member, there is a narrower second collar section. After the axle runs through a sleeve and joins to a wheel member, the more extensive first and second collar sections are jointly embedded in the sleeve's more reduced first neck section, thereby enhancing the wheel device's operational life and reliability.