1. What is an oil-free self-lubricating bearing
Oil free bearing is a new type of lubrication bearing, which has the characteristics of metal bearing and oil-free bearing. It has metal matrix loading and special solid lubricating material lubrication. It has the characteristics of high bearing capacity, impact resistance, high temperature resistance and strong self-lubricating ability. It is especially suitable for heavy load, low speed, reciprocating or swing, which is difficult to lubricate and form oil film, and is not afraid of water corrosion and other acid corrosion.
2. Why do you have to use oil-free bearings in some cases
In order to ensure the stability and reliability of bearings, most bearings are lubricated with lubricating oil to reduce the internal friction and wear of bearings and prevent combustion: prolong the fatigue life of bearings; discharge friction heat or heat transferred from the outside; at the same time, the oil film also has certain vibration absorption capacity.
However, one of the biggest disadvantages of adding lubricating oil is the need for good sealing performance, otherwise leakage will occur, and some equipment with special requirements does not allow the leakage of lubricating oil, so people use other lubricating oil instead of lubricating oil. The invention has the advantages of not only containing lubricating oil in the bearing, but also eliminating the environmental pollution caused by leakage.
3. What are the advantages of oil-free bearings
According to the lubrication of the bearing, it can be divided into oil-free bearing and oil-bearing. In many cases, oil-free bearings are required. Of course, oil-free bearing has its own advantages in the use process. In certain cases, let's look at the advantages of oil-free bearings
(1) Applicable occasions
For places where oil cannot be added or it is difficult to add oil, it is not suitable to use oil lubrication or use less oil lubrication. It can be used without maintenance or less maintenance, and also avoid the risk caused by insufficient oil supply.
(2) No oil supply is required
It does not need oil supply device, so it can save a lot of installation and operation costs. Oil free can greatly simplify design and structure, reduce cost and save design time.
(3) Green environmental protection
There is no need to recycle waste oil, which is conducive to environmental protection.
(4) Reduce the requirement of grinding parts
The hardness of grinding shaft is low, and the grinding shaft without quenching and tempering treatment can be used, which reduces the machining difficulty of related parts.
(5) High and low temperature resistance
It is resistant to high and low temperature. The service temperature of some products is - 200 ℃ to 600 ℃.