Date: 2013-08-20

INA bearings under conditions of high temperature grease

INA bearings if it is to be used under the condition of high temperature long, as long as the measured INA bearing grease to achieve this special requirement and also not INA bearings in long-term damage at high temperature. Here is INA can grease the bearing causes of long-term use under high temperature conditions.
INA bearing grease is usually indicated by a apparent viscosity viscosity or similar, in the description when the viscosity of the grease, you must indicate the temperature and cutting speed. Similar viscosity index can be used to control the low-temperature fluidity and pumping.
Measured INA bearing grease low temperature performance is one of the important indicators of low temperature torque, that at low temperatures (below-20 ° c) bearing grease block low-speed flow rotating level, low-temperature torque of grease from starting torque and rotational torque after the 60mm of average.
INA bearing grease evaporative (degrees) when expressed in long-term use under high temperature lubricating grease, grease oil content levels of volatile, evaporating the smaller the better. Grease made of evaporation depends largely on the nature of the oil and fractions.
Oxidation stability means when in long-term storage or prolonged use at high temperature lubricating grease resistance to heat, and oxygen's role's ability to sustain its nature is not permanent change. Due to oxidation, frequently free alkali content to reduce or increase the free organic acid content, drop point decline in skin color darker, abnormal odor, consistency, strength limit, similar to viscosity decrease, generate corrosive product and undermining the substance of grease, structure, resulting in SOAP oil separation. Therefore, in grease in the long-term storage, should be stored in a cool and dry environment, prevent exposure, and should be checked on a regular basis free alkali free items such as organic acids, corrosive or change, in order to ensure its quality and performance.

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