In order to as much as possible for a long time in good condition to maintain the performance of bearing itself shall be maintenance, overhaul, in order to prevent the accident in the bud, to ensure the reliability of operation, increase production, economy. Maintenance of the best operating conditions of the corresponding mechanical operating standards, regular. Content includes monitoring operation status, supplement or replacement of lubricants, regular removal of inspection. As the operation of the maintenance issues, bearing the rotation of the sound, vibration, temperature, lubricant status, etc..

Bearing cleaning: removal of the bearing under maintenance, first of all to record the appearance of the bearing, to confirm the remaining amount of lubricant, after sampling inspection with the lubricant, wash bearings. As a cleaning agent, the general use of gasoline, kerosene.

Remove bearing cleaning, rough and fine cleaning, were placed in the container, put the metal net bottom, bearing no direct contact with the container dirt. Coarse cleaning, if you rotate the bearings with dirt, can damage the rolling surface of the bearing, should pay attention to. In the rough cleaning oil, the use of a brush to remove grease, adhesive, generally clean, into the fine wash.

Fine cleaning, is the bearing in the cleaning oil side of the rotation, while carefully cleaning. In addition, cleaning oil should always keep clean.

Bearing maintenance and judgment: in order to determine whether the removal of the bearing can be used to clean the bearing after the inspection. Check the raceway surface, rolling surface, with the surface state, and maintain shelf wear, bearing clearance increases and not drop size precision of injury, abnormal. Non separated small ball bearings, with one hand to support the level of the inner ring, the rotation of the outer ring to confirm whether the smooth.

Tapered roller bearings are separated from the shape of the rolling body, the outer ring of the rolling path were checked.

Large bearings can not be rotated by hand, pay attention to check the rolling body, rolling line, keep the frame, the appearance of the face of the block, the importance of the more the more the more careful examination.

Bearing lubrication:

The lubrication of rolling bearings is to reduce the internal friction and wear of the bearings, and to prevent the burning and sticking, and the lubricating effect is as follows.

(1) to reduce friction and wear.

In the contact part of bearing rings, rolling body and a holding device, prevent metal contact, reducing friction and wear.

(2), prolong the fatigue life.

Rolling fatigue life of the bearing, in the rotation, the rolling contact surface lubrication is good, then extend. On the contrary, the oil viscosity is low, the film thickness is not good, then it is shortened.

(3) the discharge of friction heat, cooling.

Circulating oil can be used to discharge the heat produced by friction, or by heat from the outside, cooling. To prevent overheating of the bearing, to prevent the aging of lubricating oil.

(4) other

There is also a foreign body to prevent the invasion of the bearing, or to prevent rust, corrosion of the effect. Lubrication method:

Bearing lubrication method, divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, to choose the suitable condition, the use of the purpose of the lubrication method. If only consider lubrication, oil lubrication of the dominant. However, grease lubrication has the advantage of simplifying the structure around the bearing, and compares the advantages and disadvantages of grease lubrication and oil lubrication.

Bearing installation:

Bearing installation is correct, affecting the accuracy, life, performance. Therefore, the design and assembly of the installation of the bearing to be fully studied. Want to be installed in accordance with the work standards. Operating standards are usually as follows:

(1) clean bearing and bearing connected components;

(2) check the dimensions of the connected parts and finish machining;

(3) installation;

(4) after the installation of a good bearing check;

(5) supply of lubricant.

Hope that before the upcoming installation, just open the bearing packaging. General grease lubrication, non cleaning, direct filling grease. Lubricating oil lubrication, the general does not have to clean, but the instrument or high-speed bearings, etc., to use clean oil, remove the rust on the bearing. Remove rust agent bearing, easy to rust, so you can not put aside. Furthermore, have grease sealed bearings, not directly use cleaning.

Bearing installation method, due to bearing structure, coordination, conditions vary, in general, due to the multi axis rotation, so the inner ring needs to be too tight fit. Cylindrical bore bearing, press in with the press, or with hot charging method. Tapered bore, directly installed in the taper shaft, or sleeve installation.

Mounted to the casing, general clearance, the outer ring over the amount of interference, usually by a press indentation, or cooling after installation methods of shrink fit. Using dry ice as a cooling agent, shrink fit occasion, the moisture in the air condenses on the bearing surface. Therefore, the need for appropriate anti rust measures.