Cross cardan smooth

Maintenance personnel in automobile maintenance industry is common to use ordinary butter to smooth the universal joint. According to relevant technical personnel's discussion it is a mistake. The structure of the cross universal joint elements from the nozzle with grease gun is difficult to mix the butter filling on the needle roller bearing. It is well known that the viscosity of the butter, when using grease gun from the nozzle to the universal joint cross shaft needle roller bearing inner cavity loaded with butter, butter into the oil duct stenosis lumen resistance increase, butter across the open pressure nozzle pressure reducing valve and overflow. This phenomenon will be the driver and repair personnel mistake once filled with butter. But practice basic did not enter the needle between butter. Butter its physical and chemical composition elements for automobile maintenance personnel of the condensation of butter into cross cardan or smooth area and make it reach the rules. But due to the nature of the butter and make it reach effective smooth. This is due to the common characteristics of butter. In universal joint work to accept large torsion and alternating load, and smooth calcium base grease oil film strength level is poorer, friction in the bearing and shaft neck appearance is difficult to form a good oil film. Universal joint cross shaft turn needle roller bearing in the work can only be in situ, not along the steel bowl and cross axis neck rotation, and calcium base grease smooth roll is very poor, so when the oil film was destroyed after not immediately constitute a new film. C . . Smooth calcium base grease is a mixture of calcium soap and lubricating oil, oil in use due to the smooth transformation and evaporation, the grease into a hard calcium soap and calcium soap itself not only cannot have smooth effect, but also the obstacles to the needle on the journal of rolling, with universal joint cross shaft and there is no discharge of oil measures, changed smooth fat cannot eduction, new oil and it is difficult to injection, thus greatly accelerate the universal joint cross shaft needle roller bearing wear. Experts, according to the features of this initiative adopts gear oil is smooth. This is both the cross gimbal wash clean, then for gear oil. Through the comparison experiment, the using life of universal 10 bytes is using ordinary butter stop smooth two to three times. Domestic also have the team use this way smooth universal 10 bytes stop match, effect is obvious. Because the gear oil embellish to specially pressurized oil tools, and at the same time need to unload the cleaning for the first time. To compare, and safekeeping of gear oil is better than smooth fat, its smooth and shorten the cycle demand. So about cutting car rear drive shaft universal 10 bytes should use 2 # smooth extreme pressure lithium complex base grease. This is based on two points. First, its activity is good, so easy to make it smooth arrived in parts. Second, good resistance to extreme pressure, this is a universal right 10 bytes of working condition. But practice, cutting car request on relevant repair material is made of 2 # smooth smooth extreme pressure grease ( Models for NLGI2) 。 With 2 # smooth extreme pressure lithium complex base grease there should be a better effect. Initiative old universal 10 bytes of experiment the dxsystem. Such as viscosity of 2 # slants big, still can use in 1 #. Another: in the car in addition to some parts of the initiative also USES 2 # smooth extreme pressure lithium complex base grease. One of the most typical is the smooth steering rod ball head. Cutting car steering rod ball head is one of the parts. But because of the particularity of the part structure, using ordinary butter will definitely affect the using life. This is a smooth should use extreme pressure grease the middle of the lip. So, the same intense initiative using 2 # smooth extreme pressure lithium complex base grease is smooth.