The material composition of SF-1 oil-free bearings mainly includes the following components, which work together to achieve good self-lubricating performance and wear resistance:
Polytetrafluoroethylene (PTFE): This material has an extremely low coefficient of friction and good chemical resistance, which can provide self-lubricating function without oil and reduce wear.
Graphite: Graphite is an excellent lubricating material that can improve the wear resistance and heat resistance of the bearing and enhance the overall performance.
Nylon (PA) or polyamide: Nylon material enhances the strength and rigidity of the bearing, while also providing a certain degree of elasticity to help resist impact loads.
Reinforcement materials (such as glass fiber): Glass fiber is sometimes added to nylon or other substrates to improve its mechanical properties and wear resistance, further enhancing the strength and durability of the bearing.
Other additives:
Some other chemical additives may be added to improve the wear resistance, oxidation resistance and corrosion resistance of the material to ensure good performance in various environments.
Through the combination of these materials, SF-1 oil-free bearings can provide long-lasting performance and reliable working conditions without the need for lubricants.
The service life of SF-1 oil-free bearings is usually affected by a variety of factors, including load, speed, operating temperature and working environment. Generally speaking, under normal working conditions, the service life of SF-1 oil-free bearings can reach thousands of hours. Here are some specific factors and their effects:
Load: The greater the load on the bearing, the faster the wear rate may be, so the service life under high load conditions is relatively short.
Speed: Higher speeds increase friction and heat, which may cause faster wear. At lower speeds, the service life is generally longer.
Operating temperature: SF-1 oil-free bearings perform well in high temperature environments, but excessive temperatures may still affect the performance of the material, thereby shortening the service life.
Working environment: The cleanliness and corrosiveness of the working environment will also affect the life of the bearing. In environments containing dust, chemicals or other contaminants, the service life may be reduced.
Lubrication conditions: Although SF-1 oil-free bearings are designed to be self-lubricating, in some applications, proper auxiliary lubrication can still extend the service life.