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Specifications
stainless steel oil cup grease cupcup1.material:alloy,brass,stainless steel
2.thread:BSPt,NPT or others
ntent volumn:100
valve type grease cup
stainless steel oil cup grease cup stainless steel oil cup grease cup stainless steel oil cup grease cup stainless steel oil cup grease cup
Lubricating oil
Oil is the main lubricant, lubricant performance is the main physical viscosity, the viscosity of the fluid flow characterization of the performance of internal friction, viscosity, the greater their mobility worse. The other physical properties of the lubricant oil, lubricant on the metal surface characterization of adsorption capacity. Oily larger, stronger metal adsorption capacity, the more easy to form film. Lubricant selection should be considered load bearing capacity, the journal speed, lubrication, bearing surface roughness and other factors.
General principles are as follows:
1, high-speed light load operating conditions, in order to reduce the friction power selectable viscosity of lubricants;
2, in heavy or shock load operating conditions, oil should be large, the viscosity of the lubricant to form a stable lubricating film;
3, static or hydrodynamic bearings can be used viscosity of the lubricant;
4, surface roughness or surface without running-in oil viscosity should be selected.
Hydrodynamic lubrication of bearing lubricant viscosity selection, can be calculated for checking.
Grease
Journal speed is less than 1 m / s ~ 2 m / s sliding bearings can be used to grease, grease with mineral oil, a variety of thickening agent (such as calcium, sodium, lithium, aluminum and other metal soap) and water to reconcile made of grease consistency (penetration) large load capacity, but the physical and chemical properties of instability, not large changes in temperature under the conditions of use, or used for low-speed heavy swing bearing.
Solid lubricants and gas lubricant
Solid lubricants are graphite, molybdenum disulfide (MoS2) and polytetrafluoroethylene (PTFE) and other varieties. Usually in the heavy conditions, or high temperature operating conditions. Lubricants commonly used air gas, used for high speed and can not be used at the oil or grease.
Lubrication method
Bearing lubricant is to provide the necessary conditions for the formation of lubricating film, static pressure bearing and hydrodynamic bearing is through the oil pump, throttle and oil to the sliding bearing groove bearing a continuous oil supply to form a surface film making separate the bearing and journal. Hydrodynamic sliding journal bearing oil film is by turning the oil into the bearing clearance, which means there is a continuous oil supply and intermittent supply.
Intermittent supply:
Grease and oil can be used intermittently to bring needle oiler cup grease by oil, grease lubrication only an intermittent supply.
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