The website states this wheel has a 3/4" diameter axle hole. When the wheel arrived, it has a 5/8" bearing that you have to knock out and replace with a supplied 3/4" plastic bushing. I would have preferred to have a 3/4" bearing. The wheel comes with a zerk fitting so that the bushings can be greased. Time will determine ultimate satisfaction.

These tire/wheels are inexpensive and affordable until you realize they fall apart in about 12-18 months. I purchased 6 of these wheels to use on several garden carts I have that are set up for a specific task around my home/yard and end up replacing them almost yearly. These tires do not hold up nor weather very well, the tires are only 2 ply, they dry rot quickly, crack and split when exposed to weather. And with such a LOW load rating, about the only thing they are capable of hauling is dry leaves. I would gladly pay more for a better product, but TSC only offers a limited selection of tires and tire/wheel combo sets that have compatible wheel/tire sizes or axle hub diameters. If you have other options buy something else, otherwise just be aware that they are cheaply made and poorly crafted, so you should expect them to need replacement almost yearly.