SKF Bearing Shenyang General Agency Center, let’s take a look at the installation of SKF tapered bore bearings. For larger bearings, It is recommended to use SKF drive up method. Skf Tapered Bore Bearing This method saves time and is more accurate than measuring the amount of clearance and the tightening angle of locknut.
SKF electric control installation method can be used for the installation of oversize bearings (SKF sensormount method) Skf Tapered Bore Bearing to measure the expansion of the inner ring. Since the sensor is embedded in the inner ring of the bearing, it can be installed more easily, quickly and accurately.
Bearings with tapered holes are generally installed with interference fit. The interference can be determined by measuring the reduction of radial Skf Tapered Bore Bearing clearance or the axial displacement of the inner ring on the conical journal.
The methods applicable to the installation of tapered hole spherical roller bearings include: measuring the amount of clearance, measuring the locking angle of the locking curtain, measuring the axial propulsion Skf Tapered Bore Bearing distance, measuring the expansion of the inner ring, and small bearings with an inner diameter of 100mm or less. They can be installed by measuring the locking angle of the locking nut.
There are dozens of rolling bearings in cars, including almost all common bearing types, large and small. The crash and damage of rolling bearings are also common. Skf Tapered Bore Bearing Since rolling bearings are generally installed inside the mechanism, it is inconvenient to conduct visual inspection. Only a brief judgment can be made according to the fault phenomenon, and then disassembled for inspection.
The correct use of rolling bearing is a reliable guarantee to reduce bearing failure and prolong bearing life, including correct installation and reasonable lubrication. Skf Tapered Bore Bearing The following describes the use requirements, common faults and damages of rolling bearings.
1. Disassembly and assembly of bearing
The bearing shall be cleaned before installation. During installation, the auxiliary bearing shall be pressed straight and evenly with special tools. Do not knock with a hand hammer. In particular, it is forbidden Skf Tapered Bore Bearing to knock directly on the bearing. When the fit between the bearing race and the seat hole is loose, the seat hole shall be repaired or the bearing shall be replaced.
Do not reluctantly use the method of pitting or padding copper skin on the bearing mating surface. Skf Tapered Bore Bearing When disassembling the bearing, use a suitable puller to pull out the bearing, and do not knock the bearing with a chisel, hammer, etc.
2. Bearing lubrication
There are two kinds of lubricants commonly used in rolling bearings: lubricating oil and grease. When the circumferential speed of the shaft is less than 4-5m / s, or the parts on the vehicle that cannot be lubricated with lubricating oil, grease shall be used for lubrication. The advantage of grease lubrication is that the sealing structure is simple, the grease is not easy to lose, and it is not affected by temperature. Adding grease once can be used for a long time.
Two problems should be paid attention to when using grease. One is to select the appropriate brand of grease according to the requirements of the automobile manual. For example, nano base grease should not be selected for automobile water pump bearing because of its poor water resistance. Second, the amount of lubricating grease added to the bearing should be appropriate.
Generally, it is appropriate to fill only 1 / 2-L / 3 of the bearing cavity. Too much is not only useless, but also increases the running resistance of the bearing and heats it up. Special attention should be paid to the automobile hub bearing. It is necessary to advocate “empty hub lubrication”, that is, only apply an appropriate layer of grease on the bearing. Otherwise, it will not only waste and poor heat dissipation, but also cause the grease to overflow due to heating, which may affect the braking performance.
The advantages of lubricating oil lubrication are low friction resistance and heat dissipation. It is mainly used for bearings with high speed and high working environment temperature. The brand of lubricating oil shall be selected according to the requirements of the vehicle manual, and shall be replaced in time after the vehicle maintenance cycle.
After discharging the old oil, the mechanism shall be cleaned before adding new oil. The oil shall be added to the specified marking line or flush with the oil filler (depending on the specific structure and requirements of the vehicle), and no more oil shall be added.