FAG bearing grease apparent viscosity is commonly used or similar viscosity to represent, in describing when the viscosity of the grease, you must indicate the temperature and shear rate. Similar viscosity index can be used to control the low-temperature fluidity and pumping.
Measuring self-aligning ball bearing grease is one of the important indicators of performance at low temperature and low temperature torque, at low temperatures (-20 ° c or less) grease block bearing rotation of low speed flow levels, low-temperature torque of grease from the starting torque and turning the average of the 60mm torque.
FAG bearing grease of evaporation (degrees) when long-term use at high temperature lubricating grease, grease oil levels of volatile evaporation the smaller, the better. Fat made of evaporation depends mainly on the nature of the oil and distillates.
Oxidation stability means the grease used in long-term storage or prolonged high temperature resistance of heat and oxygen effects, ability to maintain its nature not permanent changes. Because oxidation is often reduced or free alkali content of free organic acids content increased, drop point decline in skin become darker in color, abnormal odor, consistency, intensity limit, similar viscosity drop, generate corrosive product and material damage grease structure, causing oil SOAP. Therefore, in grease for long-term storage in the, should be stored in a dry and ventilated environment, prevent sunlight and should periodically check the free alkali or changes of free organic acids, corrosive and other projects, to guarantee their quality and performance.
Depending on location and conditions of use and environmental conditions select size, accuracy, combined with suitable FAG bearings is a prerequisite to ensure self-aligning ball bearing service life and reliability.
Used parts: self-aligning ball bearings are suitable to withstand radial load-oriented combination of radial and axial load, usually with two sets of paired bearings used, mainly in the car′s front and rear wheels, active cone transmission parts such as gears, differentials, gearbox.
FAG bearings when the somewhat negative operational clearance, bearing life the most. But it′s actually going to be bearing the best State is very difficult to change once certain conditions of use, the negative clearance increases, thereby incurring significant drop in life of self-aligning ball bearings or fever. So, usually when you select initial clearance, requested clearance operation takes only slightly greater than zero.