Is composite bearing suitable for dry grinding environment?
Composite bearing oil free or at a less oil lubrication work environment, it is not maintenance or less maintenance. Composite bearing can be divided into composite composite bearings, solid Mosaic composite bearing, double metal composite bearing material, special composite bearing material, according to the different USES and industrial and mining, choose different composite bearing, one of the categories of complex Mosaic solid bearing (JDB) is a kind of both metal bearing characteristics and bearing characteristics of novel lubrication bearing lubrication system, the load matrix, and the special formula of solid lubricating materials lubrication. It has high bearing capacity, impact resistance, high temperature resistant, self-lubricating ability etc., especially suitable for overloading, low-speed, reciprocating or swing, difficult to lubrication and oil film formation, not afraid of the water and other acid erosion and erosion. Current products have been widely used in metallurgical continuous casting machine, rolling equipment, mining machinery, mould and hoisting machinery, textile machinery, wind power generation, shipping, steam turbine, water turbine, injection molding machine and equipment in the production line. Wear resistance is twice as high as an ordinary shaft sleeve.
The following are the features and advantages of composite bearing:
1. Good abrasion resistance, small friction coefficient, long service life.
2. It has the right amount of elastic-plastic, which can distribute stress on the wider contact surface and improve bearing capacity.
3. The static friction coefficient is similar, which can eliminate the creep at low speed, thus ensuring the mechanical working accuracy.
4. It can reduce vibration, reduce noise, prevent pollution and improve working conditions.
5. During operation, transfer film can be formed to protect the effect of the grinding axis and no bite axis.
The hardness of the grinding shaft is low, the shaft of the unrefined processing can be used, thus reducing the processing difficulty of the relevant parts
composite bearing is the bearing under sliding friction. composite bearing is stable, reliable and noiseless. Composite bearing applications are generally used in low-speed heavy load conditions, or maintenance and lubricating oil difficult operation parts.
According to the working principle of the bearing: rolling friction bearing (rolling bearing) and sliding friction bearing (composite bearing).
composite bearing (sliding bearing) bearing under sliding friction. composite bearing is stable, reliable and noiseless. Under the condition of liquid lubrication, the sliding surface is separated by lubricating oil without direct contact, which can greatly reduce friction loss and surface wear, and the oil film has certain vibration absorbing ability. But starting frictional resistance is greater. The part of the shaft which is supported by the bearing is called the shaft neck, and the part that matches the shaft neck is called the bearing. In order to improve the frictional properties of the bearing surface, the subsurface of the friction material which is cast on the inner surface is called the bearing liner. The material of bearing and bearing lining is collectively referred to as composite bearing material. Commonly used composite bearing material has bearing alloy (also called babbit or white metal), wear resistant cast iron, copper and aluminum alloy, powder metallurgy material, plastic, rubber, hardwood and carbon - graphite, teflon (PTFE), modified polyformaldehyde (POM), etc.
Composite bearing applications are generally used in low-speed heavy load conditions, or maintenance and lubricating oil difficult operation parts.