Precautions for use of FAG tapered roller bearing lubrication device

When the bearing is installed, it can be selected according to its type and size, mechanical, heating or hydraulic. However, under no circumstances can you tap the tapered roller bearing ring, cage, rolling element or seal directly. The force applied to the FAG bearing during installation must not be transmitted from one bearing ring to the other through the rolling element, otherwise the raceway may be damaged.
First of all: The first point is two tank equipment, one for use, regular switching, spare tank cleaning, oil temperature precipitation, net oil and water.
Second, the fuel tank should be equipped with a degassing plate in the oil return zone - reduce the impact of fueling; the magnetic grid device - the iron in the oil returning zone; the floating oil suction port - the appropriate position below the liquid surface to absorb oil; the automatic drainage device or the water immersion alarm device - will precipitate Separate water to discharge in time; dynamic liquid level control - alarm or interlock for sudden large amount of oil leakage.
Third, the oil supply filtration precision is high, generally requires filtration accuracy of 10 ~ 20μm to ensure the cleanliness of the oil.
Fourth, the oil supply pressure should be kept constant, the lubrication system working pressure control device should have high sensitivity and precision, avoid the pressure drop caused by the pressure change, cause the local lubrication system to supply insufficient oil, and the oil film FAG bearing wear and sintering .
5. The volume of the fuel tank should be 35 to 40 times the displacement per minute of the oil pump, and some even larger. In the case of high oil level operation, ensure that the oil stays in the tank for a long enough time to settle.
6. The pressure tank in the lubrication system must operate normally, control the reasonable oil filling flow value and the liquid level in the tank, and play the pressure fluctuation of the partial buffer system and the supply of the emergency oil source.
7. The oil supply temperature should be controlled between 40±2°C to ensure the viscosity of the oil supply.
8. The filter must drain the residual air in the filter cartridge before switching the tapered roller bearing.
For clearance-fit tapered roller bearing rings, it is recommended to apply a thin anti-creeping etchant on the mating surface to prevent frictional corrosion between the mating surfaces.
Proper installation is very important for the use of FAG bearings. I hope that everyone can use the correct installation method in future use.

For more information and purchase please visit: https://www.supplyforever.com

FAG one-way bearing inspection and troubleshooting steps

The track sound of the bearing and its control method The track sound is a slippery continuous sound that the rolling element rolls on the raceway surface when the bearing is running. It is the unique basic sound that all FAG bearings will produce. The general one-way bearing sound is the rolling sound plus other sounds. The greater the rigidity of the bearing housing, the lower the sound pressure level of the raceway sound. If the radial clearance is too small, the sound pressure level and the main frequency of the raceway sound will increase sharply as the radial clearance decreases.
One-way bearing fatigue failure is a failure of the surface form, mainly manifested by fatigue crack initiation, expansion and fracture processes, and the long-term effects of load failure on the metal. The crack is in two ways:
1. From the surface, this is the external load caused by the cyclic deformation of the plastic surface of the FAG bearing during the rolling contact due to the plastic deformation of the working surface and the strained surface of the strain hardening surface, and finally developed in the small crack. The inner surface, the formation of surface cracks between the two, due to the intrusion of lubricant into the working surface, the open force, severely hitting the wall, forcing the crack to advance;
2, from the surface layer, repeated pressure, surface contact, initially cracked cracks at the surface where the surface is exposed, and the angle along the surface direction, to a certain depth, from the surface of the contact surface, and beyond The surface, and eventually formed an eclipse, leaving a horse pit.
From the surface of the one-way bearing, or from the crack of the surface layer, these two objectives (parts carburizing, quenching and other surface heat treatment, if there is uneven hardness, microstructure, and non-uniform internal stress and other disadvantages, then Contact stress is generally caused by the influence of the opposite underground crack. If the surface quality of the part is poor, there is a defect (oxidation, decarburization), friction or poor lubrication, from the surface crack.
The method of controlling the rolling sound is to select a low-noise FAG bearing, that is, a bearing with a small waviness, and carefully select the conditions of use. The raceway sound often affects the noise of the entire machine, and reducing the raceway sound can reduce the noise of the entire machine.
Rolling sound of one-way bearing and its control method Rolling sound is a harsh metal friction sound that can occur in cylindrical roller bearings in all occasions. Most of them occur in grease-lubricated larger type bearings, and the performance of base oil deteriorates. Grease is more likely to occur and hardly occurs when oil is lubricated. In addition, it is more likely to occur in winter. When subjected to pure radial load, it is easy to occur in the case of large radial clearance, and it is easy to occur in a certain speed range depending on the size of the model, and it will occur continuously. It will appear intermittently. Special processing methods for the outer ring raceway can prevent the occurrence of rolling noise. If necessary, the bearing can be selected, or the radial clearance of the FAG bearing can be appropriately reduced, and the grease with excellent performance and the matching with the bearing can be used. rigidity

For more information and purchase please visit: https://www.supplyforever.com