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TIMKEN bearings 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. Bearings lubrication is important part of the process of using and, therefore, many believe that more grease on the bearings better, but it's not. Amount of grease.
Filling amount of grease in the bearing may refer to the following principles:
(1) General bearings should be filled with grease, to put all the bearing cavity space 1/2-3/4;
(2) horizontal bearing fills the cavity space 2/3-3/4;
(3) bearing for vertical installation fills the cavity space one-second (on the side), three-fourths (bottom);
(4) easy to pollute the environment, slow or medium speed bearings, bearings and bearing boxes fill all space;
(5) high speed bearings in loaded bearings should be placed before the fat in high quality lubricants, is generally used by soaking it in the underlying oil packed grease, so when it starts bearing burned out due to insufficient friction surface grease.
Measure the 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 bearing block for low-speed flows turning level, low temperature torque of grease from starting torque and rotational torque after the 60mm of average.
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.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| NNU4928 NTN | 140 | 190 | 50 |
| NNU4926K NTN | 130 | 180 | 50 |