For heavy load should be selected penetration small when working at high pressure lubricating grease in addition to penetration of small things, also have a high oil film strength and extreme pressure properties. When selecting a grease based on environmental conditions, calcium base grease easily soluble in water, less suitable for drying and moisture environment. INA bearing common greases have sodium calcium base grease grease calcium base grease of sodium aluminium base grease of lithium base grease with molybdenum disulfide grease. Number of filling grease in the bearings, to filling bearing 1/2-1/3 suitable for the internal space. High speed should be reduced to one-third when too much grease will enable increased temperature rise.
INA bearing temperature, General bearing outside of room temperature can be speculated that, if the uses of oil hole can direct measurement of outer ring of thin-walled bearing temperature is more appropriate. Usually, INA bearing temperature as bearing operation began to slowly rise, 1-2 hours later to reach a steady state. Normal temperature deep groove ball bearings due to the heat capacity of the machine, heat dissipation, speed and load to another. If lubricated, install appropriate, bearing temperature quick rise, abnormal high temperature occurs, in which case you must stop, take the necessary preventive measures.
INA bearings in general amount of grease fill may refer to the following principles:　
(1) generally should not be filled with grease in the bearings, mounted to the bearing cavity space of all 1/2-3/4;　
(2) horizontal bearing fills the cavity space 2/3-3/4;　
(3) bearing installed vertical fill the cavity space one-second (on the side), three-fourths (bottom);　
(4) are vulnerable to pollution of the environment, for low or medium speed bearings, bearings and deep groove ball bearing box fill all space;　
(5) high speed bearings in loaded fat put bearings in high quality lubricant before, usually with installed grease based oil soaking in, so that at startup caused due to insufficient friction surface grease bearing burned out.
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.


Other News:
INA bearing considerations for cooperation in the production of lubricating grease
SKF bearing fault handling and the necessary maintenance measures
How to detect SKF bearing vibration increased use of life
Technical analysis of extending the life of TIMKEN bearings
SKF bearing heating failure prevention and simple treatment method
Improper treatment of affecting stable operation of FAG bearings vibration
Analysis of factors influencing the grinding degenerating layer of SKF bearings
SKF bearing condition factors and environmental conditions on the burn