There are a few things you can do to clean wheel bearings. The first is to remove the grease and oil from the bearings. This will help to prevent any build-up and make the cleaning process easier. Next, use a brush or a vacuum cleaner to clean all of the debris from the bearings. Be sure to use a light and gentle touch so as not to damage the bearings. Finally, dry the bearings by using a hairdryer or an oven set at 100 degrees Fahrenheit for about 10 minutes.