What is the weight of the wheel on the cart
The push cart inevitably has the action of turning, translating, etc.
It is recommended to contact bearing 7305 or conical roller bearing 30305 (the former is recommended because the latter is suitable for overloading). The two kinds of bearings have to be used face to face or back-to-back
The 6305 bearing is a deep groove ball bearing, which is characterized by the ability to withstand large radial load, and the disadvantage is that the bearing capacity of the axial load is very small
