A. Types of LubricantsLubricants for pulley bearings are mainly of the following types:1. Lubricating oil:Liquid form: Widely used, with good fluidity and cooling properties.Performance characteristic...
The advantages of construction machinery shaft sleeve mainly include high strength combination, good wear resistance and bearing performance, high flexibility, dimensional stability, high precision, economy, wide operating temperature range, self-lubrication performance and good mechanical bearing capacity and anti-wear and anti-wear performance.
high strength combination: through special machining technology and temperature rise and insulation technology, the combination strength of steel layer and copper layer is very high, up to 150MPa, is not easy to be stratified, fall off or peel off.
good wear resistance and bearing property: centrifugal cast copper layer has dense structure, fewer defects, high pass rate, therefore has wear resistance and bearing property.
high flexibility: can be used with a variety of steel based materials and different properties of copper alloy grades, to meet the needs of different working conditions.
dimensional stability: thermal expansion coefficient is small, size is stable, can maintain stable performance in various working environments.
high precision: centrifugal casting can produce parts with higher forming accuracy and surface quality. liquid metal flows more smoothly under the action of centrifugal force, reduces the deformation during cooling.
Economy: The combination of copper and steel can not only play the advantages of copper alloy shaft sleeve, can also have the advantages of good mechanical properties and high cost performance of steel based materials.
Wide operating temperature range: -100℃~300℃ temperature range can play a stable role.
self-lubricating performance: matrix inlaid lubricant can be made of self-lubricating bearing, suitable for medium and high load, start frequently can not be refueling or difficult to form oil film occasions.
good mechanical carrying capacity and anti-wear and anti-wear performance: both high mechanical carrying capacity of steel structure strength and anti-wear and anti-wear performance of copper alloy.
These advantages make engineering machinery axle housing in aviation, ships , , railway locomotive engine unit, heavy oil unit and trucks bearing hydraulic thermal power equipment, , , machinery manufacturing, mechanical forging machinery, , , oil is widely used in mining machinery and other industries