The so-called oil-free bearing generally refers to the sliding bearing, which belongs to a type of sliding bearing. If the oil-free bearing is defined by whether the lubricant has oil, water lubrication, air lubrication, electromagnetic, etc. can also be included in the oil-free bearing, here only For bearings that use self-lubricating materials or oil-containing materials, they are made through a special process and do not need to add lubricants during operation.
Oil-free bearings mainly refer to inlaid solid lubricating bearings and self-lubricating bearings.
Today, the editor will introduce the application characteristics and advantages of self-lubricating bearings:
Self-lubricating bearings are made of self-lubricating materials or oil-containing materials through special processing.
Application features and advantages are as follows:
1. No or less oil lubrication, suitable for places where it is impossible or difficult to refuel. It can be used without maintenance or less maintenance;
2. Good wear resistance, small friction factor and long service life.
3. There is a proper amount of elasticity and plasticity, which can distribute the stress on a wider contact surface and improve the bearing capacity of the bearing.
4. The static and dynamic friction coefficients are similar, which can eliminate crawling at low speeds, thereby ensuring the working accuracy of the machine.
5. The machine can reduce vibration, noise, pollution, and improve working conditions.
6. The transfer film can be formed during the operation, which can protect the grinding shaft without the phenomenon of shaft biting.
7. The hardness of the shaft is low, and the shaft without quenching and tempering treatment can be used, thereby reducing the difficulty of processing related parts.
8. Thin wall structure, light weight, can reduce the mechanical volume.
9. The back of the steel can be electroplated with a variety of metals, which can be used in corrosive media.
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