Practical Function: You can move the object flexibly and easily by installing the Transfer Bearing. If installed on a kitchenware rack, it is easy to push and pull. Used in workshops, warehouses, logistics centers and other occasions, nylon ball bearing can greatly improve transportation efficiency and reduce manual labor. High Quality Material: The Ball Transfer surface is nickel-plated, wear-resistant, with long service life. The compressive strength of high quality nylon ball bearing caster balls is the same as that of metal. And the tensile strength is higher than that of metal. Nylon ball casters can run smoothly and quietly without any noise. Fine Workmanship: Fine workmanship strengthens the support structure of the conveyor bearing, it is not easy to break under the compression. The smooth edge of the nylon ball caster can be perfectly connected to the object. The surface of the iron is plated with nickel, which makes the surface brighter and more beautiful. Simple Installation: There are two 4mm installation holes on the nickel-plated iron washer of the ball swivel caster, which is very convenient and quick to install. You just need to fix it on the corresponding object with screws and you can use it. Widely Used: The conveyor ball wheel can not only be installed on furniture and shelves for easy movement. It is also very suitable for transmission and processing system, processing machinery and auxiliary equipment of packaging machinery. Due to factors such as manual measurement and display differences , there may be slight differences between individual products and images, please excuse me.