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China Mud Pump Crankshaft Assembly
#1
Mud pump bearing is an important part of contemporary mechanical equipment.Its main function is to support the mechanical rotating body, reduce its friction coefficient in the process of motion, and ensure its rotary accuracy.
Bearing steel features:
I. contact fatigue strength
Bearing is below the action of periodic load, contact appearance is very easy attack exhaustion is destroyed, appear namely crack flaking, this is the main destroy situation of bearing.Therefore, in order to improve the service life of bearing, bearing steel must have a high contact fatigue strength.
Wear resistance
Bearing task, the ring, rolling body and maintenance frame between not only the occurrence of rolling friction, but also the occurrence of sliding friction, so that the bearing parts have been worn.In order to increase the wear of bearing parts, maintain the stability of bearing precision, extend the service life, bearing steel should have good wear resistance.
Three, hardness
Hardness is one of the important qualities of bearing, which has indirect influence on contact fatigue strength, wear resistance and elastic limit.Bearing steel in the use of individual hardness to hrc61-65, the ability to make the bearing to obtain a higher contact fatigue strength and wear resistance.
Four, rust resistance
In order to avoid the bearing parts and finished products in the process of processing, depositing and using corrosion rust, the request bearing steel should have good rust resistance.
Five, processing performance
Bearing parts in the consumption process, to go through a lot of cold, hot processing processes, in order to satisfy a small number of high efficiency, high quality requirements, bearing steel should have good processing performance.For example, cold, hot forming performance, cutting performance, hardenability and so on.
In addition to the above basic requirements, bearing steel should also meet the requirements of appropriate chemical composition, average external organization, few non-metallic dopants, conformity of external surface defects with norms, and non-exceeding the regular concentration of external decarbonization layer.China Mud Pump Crankshaft Assembly
website:http://www.brmudpumpparts.com/mud-pump-parts/mud-pump-crankshaft-assembly/
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