The purpose of lubrication of rolling bearings is to reduce friction and wear inside bearings, prevent burning and sticking, and its lubrication utility is as follows.

Reduce friction and wear.In the bearing of the ring, rolling body and the mutual contact part of the retainer, prevent metal contact, reduce friction, wear.The rolling fatigue life of prolonging fatigue life, in the rotation, the rolling contact surface is well lubricated, it is prolonged.On the contrary, the oil viscosity is low, the lubricating oil film thickness is not good, then shorten.Expel friction heat and cool down.Circulating oil can be used to drain the heat generated by friction, or heat from the outside, cooling.Prevent overheating of bearings and aging of lubricating oil itself.Other also have the effect of preventing foreign matter from invading the bearing interior, or preventing rust and corrosion.The lubrication method of bearings is divided into grease lubrication and oil lubrication.In order to make the bearing function well, first of all, we should choose the lubrication method suitable for the use conditions and use purposes.If only considering lubrication, oil lubrication is dominant.However, grease lubrication has the advantage of simplifying the structure around the bearing, and the advantages and disadvantages of grease lubrication and oil lubrication are compared.

1.Remove the wheel first and remember to put the screws away. If they are off, they will be in trouble.

2. take off the NSK bearing, some of the wheel core is very tight, the bearing is difficult to remove, use the hexagonal plate hand (is the one to remove the screw) force to dig it down, rest assured, the bearing is not easy to break!

3, first brush off the dirty things on the surface of Pailing with a toothbrush, you do not do this step is OK, no difference!

4.The side cover of some bearings is removable, but some are not. First judge whether you are removable or not.How do you judge?Don't worry!If there is a C-shaped ring on the edge of the bearing side cover, it is removable, and if there is no, it is not removable, but there are exceptions!

5.If it is detachable, it is very simple!With a word of precision driver, in the C ring gap, the C ring pry up, and then the side cover is removed, as long as the side is removed Oh!C ring and side cover should be put away, you "may" want to put them back after washing!

6.If it is not detachable, it is more trouble!You have to do it in a destructive way.With the precision screwdriver into the seam of the side cover, forced to pry up the side cover, do not doubt, it is so, but the side cover can not be installed back!Well, throw it away!Remember, you just have to tear one side down, and you destroy both sides!

7.Remove one side cover of all the bearings and start washing them!Pour the stained oil into the bowl, throw the bearing down and stir it up.