The effect of dust and rust is achieved by lubricating the double row angular contact ball bearing. Before the two main grease lubrication methods of bearing and the filling and sealing method of oil lubricating grease lubrication sealed bearing grease, fill the inside of the shell with an appropriate amount of grease, and the filling method for each supplement or replacement is fat.
In addition, there are many places where the machinery of double row angular contact ball bearings needs to be lubricated, but the local concentration of grease connected by pipes is also used.
Grease lubrication can not be supplemented for a long time after filling with grease, and its sealing device has simpler structure and is so widely used. Oil lubrication is a relatively simple. Regular lubrication can improve the service life of bearings. Then, the importance of lubricating bearings, first stop here.Internal lubrication technology to solve bearing heating
1) Immersion method: some precision double row angular contact ball bearings are immersed in antirust grease and a layer of antirust grease is adhered to their surface. The thickness of oil film can be achieved by controlling the temperature or viscosity of antirust grease.Internal lubrication technology to solve bearing heating
2) The brushing method is used for outdoor construction equipment or products with special shapes that are not suitable for soaking or spraying. During brushing, attention should be paid not only to avoid accumulation, but also to prevent missing coating.Internal lubrication technology to solve bearing heating
3) spray method can not be used to soak some large antirust substances by immersion method. Generally, the filter compressed air of about 0.7Mpa pressure is used for spraying in the clean air area. Spray method is suitable for solvent dilution antirust oil or thin layer antirust oil, but must adopt perfect fire protection and labor protection measures.
In terms of bearing speed, the bearing is determined according to the type, size, accuracy, cage type, load, lubrication mode, cooling mode and other factors.Internal lubrication technology to solve bearing heating
The installation and disassembly of bearings need to be removed and installed frequently in specific applications to ensure that they can be tested and repaired according to their location. Bearings with separate inner and outer rings, such as cylindrical bearing, needle roller bearing and conical bearing, are very suitable for this occasion.
With the help of the shaft sleeve, the installation procedure of the taper hole type self-aligning ball bearing and self-aligning roller bearing is also simplified.Internal lubrication technology to solve bearing heating
In some cases, preloading should be applied to the rolling bearing to increase the rigidity. This procedure is usually used for deep groove ball bearing, centripetal thrust ball bearing and tapered roller bearing. The offset of inner and outer rings, shaft bending, change of tolerance of shaft or bearing box and wrong fit will lead to the eccentricity of inner and outer rings.
In order to prevent excessive eccentric angle, self-aligning ball bearing, self-aligning roller bearing or self-aligning bearing seat are better choices. Voice frequency and torque, dynamic bearings are manufactured according to high-precision standards, so voice and torque are small. Deep groove ball bearings and cylindrical roller bearings are used for occasions with special requirements for low voice and low torque.Internal lubrication technology to solve bearing heating
Internal lubrication technology to solve bearing heating
(1) Note that the bearing with seal can not be cleaned by this method. The inside of the seal should be as it is and can not be cleaned.Internal lubrication technology to solve bearing heating
(2) The assembly surface shall be cleaned with clean gasoline, kerosene, toluene or xylene solution, wiped dry with clean cloth, and then coated with a thin layer of smooth oil, so as to make the operation of the device convenient and efficient.
(3) When facing the device, open the bearing package, immerse it in the above gasoline and other liquids, and rotate it gently by hand. Ensure that the sealing oil on the surface of the holder, rolling element and raceway is completely cleaned.Internal lubrication technology to solve bearing heating
(4) When cleaning a large number of bearings, first pour hot engine oil with a temperature of 90 ~ 100 ℃ to condense the sealing oil. At the same time, dig out all the old oil with a seamless tool without falling debris, then pour hot for a few minutes, then wash the oil with kerosene, and then wash it with gasoline. After cleaning, wear film gloves and put the bearing on a clean cloth or paper on the workbench to dry.Internal lubrication technology to solve bearing heating