For oil-free self-lubricating bearings, there are a lot of people do not understand, many companies still use expensive imported bearings, copper sleeve and other traditional products. In fact, self-lubricating bearings can replace copper sets and other similar products, machinery and automotive industry, such as the guide sleeve in the cylinder, turn the lift, sliding parts, turn on the valve and other parts, can be a good role to play , and lower prices of these bearings can largely reduce production costs. I believe in the near future will be oil-free self-lubricating bearings for its indisputable advantages adaptability, wear, bearing industry economy and become leading products.