Many people say that they can't buy the right wheel bearings, bearings tend to spend a lot of money back is not easy, soon is not bad, is back after the machine's productivity has declined, this problems is very trouble, how to buy a good bearing part? First, we need to be combined with machine model to choose, now there are two types of bearing. One is a type of machine-specific styles, another is common across all machines of this rule can use styles, wanting to make the machine's efficiency would not be affected, select special bearings is definitely better than General. Second, we need to look at the wheel bearings of the brand, the best situation is the direct purchase and bearing parts of the same brand, that does not have compatibility problems, can certainly play out the machine's most important function, and quality is relatively secure. Third, be sure to note bearing the actual use of the product with a touch of checks, most of the time, bearing size thin over a fraction of a millimetre, you will have a great effect on their service life, wants to buy the real and durable bearings, then check yourself is the most effective.