FAG bearing grease is usually represented by a similar apparent viscosity or viscosity, indicate when the viscosity of the grease, you must indicate the temperature and shear rate. Similar viscosity index can be used to control the cold flow and pumping.
Measuring bearing grease low temperature properties of low temperature torque is an important indicator, which at low temperatures (below-20 ° c) the grease block degree of rotation of low speed flow-aligning ball bearings, low-temperature torque of grease from starting torque and rotational torque after 60mm on average.
According to the working conditions and working environment on the sealing of the bearing on the degree requirements in the design of FAG bearings often is the integrated use of various seal types in order to achieve a better seal.
1. bearing Assembly due to the bearings are precision products, if assembled incorrectly channels, very easy to damage the self-aligning ball bearing, bearing damage. In assembling the bearings should have a special mold, when there is no axis pressure can only be a small circle, circle, force loop. Pneumatic or hydraulic Assembly requirements, when used on pressure, installed in horizontal molds under State if you prefer bearing channels will result in damage to a power, and bearing noise.
2. bearing removal and installation of the same careful. Note do not damage the roller bearings and other parts, especially the interference fit of FAG bearings disassembly operations difficult. So, at the design stage to think ahead to the easy disassembly, designed removal tool is also very important, as needed. When removing, order research removal method, based on drawings, investigated tie conditions to ensure foolproof demolition job.
3. foreign bearing materials allow lubricant to clamping rigid particles and prevent scratching or (and) capacity of abrasive wear. Metallic materials, hardness and elastic modulus of low, clamping on the good, and non-metallic materials may not, for example, carbon graphite, lower elastic modulus, but clamping is not good. Bearings are usually soft and hard materials constitute lots of friction, Bush usually use soft materials.
4. check bearing in work in the of vibration situation from peeling, and pressure marks, and rust, and crack, and wear, will in FAG bearing of vibration measurement in the reflect, bearing vibration reversed heart ball bearing of injury is is sensitive of, therefore, and through used special of bearing vibration measurement Manager (frequency Analyzer,) can measurement out vibration of size, through frequency points not inferred out exception of specific situation.
Evaporation of the bearing grease (degree) of lubricating greases at high temperatures when used long-term, volatile level of oil content of lubricating grease, evaporation the smaller the better. Effect of evaporation depends largely on the nature of the oil and distillate composition.
Is the oxidation stability of lubricating grease in long-term storage or prolonged use at high temperatures, resistance to heat and oxygen effects, ability to maintain its nature does not permanently change. Because oxidation is often reduced or free alkali content of free organic acids content increased, lowering drop, darker appearance, abnormal odor, consistency, intensity limit, similar viscosity drop generated corrosion products and undermine the grease, material, causing oil SOAP. Therefore, in grease for long-term storage, should be stored in a dry and ventilated environment, prevent sunlight and should periodically check the free base or changes of free organic acids, corrosive and other projects, to guarantee their quality and performance.