The necessity of SKF bearing lubrication to reduce failure

Bearing lubrication: the purpose of the rolling bearing lubrication purpose is to reduce the bearing internal friction and the friction losses, prevent burning stick, its lubrication effect is as follows. ⑴。 Reduce friction and friction losses. In the form of bearing ring, rolling body and touch each other part of the retainer, prevent metal contact, reduce friction and wear. ⑵。 Extend the fatigue life. SKF bearing fatigue life of rolling, in the rotation, good lubrication performance of the rolling contact surface, are extended. On the contrary, the oil viscosity is low, the thickness of lube film is not good, is shortened. ⑶。 Discharge frictional heat and cooling cycle to oil can discharge by friction heat, oil, or from external heat from the cooling. To prevent hotbox, prevent aging oil itself. ⑷。 Other also has to prevent foreign matter into the bearing internal, or to prevent rust and corrosion effect. Lubrication methods: SKF bearing lubrication method, divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, to choose suitable for conditions of use, the purpose of lubrication method. If only consider lubrication and oil lubrication. However, grease lubrication can simplify the structure of bearing the surrounding of the special features, compare the pros and cons of grease lubrication and oil lubrication. Rolling bearing fault phenomenon generally show the two kinds, one is the bearing installation site temperature is too high, the second is the bearing running noise. 1. Bearing temperature is too high, when the agency is running the installation of bearing parts allowed to have a certain temperature, when the hand touch body shell, should not feel hot as normal, conversely indicates that bearing temperature is too high. SKF bearing temperature are: the cause of lubricating oil quality does not conform to the requirements or metamorphism, lubricating oil viscosity is too high; The assemble tight ( Inadequate clearance) ; Bearing assembly too tight; Bearing race in internal rotation shaft or housing; Too much load; Bearing cage or rolling body fracture, etc. 2. Bearing noise rolling bearing in the work to allow running noise slightly, if you have any abnormal noise or excessive noise or sound, suggests that the bearing failure. Cause noise of rolling bearings is more complex, one is the bearing inner and outer surface wear. Due to the wear and tear, damage to the bearings and shell, bearing and shaft cooperate relationship, lead to axis deviation from the correct position, when axis at high speed movement produces sound. When the bearing fatigue, its surface metal flake, also can produce sound make bearing radial clearance increases. In addition, the bearing lubrication, forms the dry friction, and SKF bearing broken etc all make abnormal noise. Bearing wear loose after kuang, maintains a looseness damage, also can produce sound.