NSK bearings in the use of accuracy and speed of use - bearing grease

Is imported bearing grease is indispensable in the workplace, all imports of bearing maintenance without grease, someone asked, grease more many more good? Here of course, the answer is no, NSK bearings, the matters for attention in the use of grease. NSK bearings in the maintenance, the excessive grease in fact there are a lot of harm. Because the grease has good adhesion, abrasion resistance, temperature tolerance, rust and lubricity, can improve the high temperature oxidation resistance, delay aging, can dissolve carbon deposition, prevent poly metal abrasive dust and oil pollution, the improved mechanical wear, pressure and corrosion resistance. If the more grease filling amount, the greater the friction torque will be. The same filling amount, the sealed bearing friction torque is greater than the open bearing. The grease filling amounts to 60% of bearing internal space volume, friction torque no longer increases obviously. This is due to open in the bearing grease has been most extrusion, but also has lost in the sealed bearing grease. NSK bearing temperature rise with the increase of grease filling amount, linear increase, the same filling amount, sealed bearing temperature rise is higher than the open bearings. It is generally believed that sealed rolling bearing grease filling amount, shall not be more than about 50% of the internal space. Shawki and Mokhtar experiment show that the ball bearing, 20% to 30% in the most appropriate. A bearing precision and speed is one of the most important, what their specific means, is illustrated by NSK bearings. NSK bearings precision: demand high rotation precision bearing configuration, Such as spindle) And used in high speed condition, should choose higher than common bearing. Can provide a variety of high-precision bearings, including single row angular contact ball bearings, single row and double row cylindrical roller bearings, and unidirectional and bidirectional angular contact thrust ball bearing NSK bearing speed: the running speed of rolling bearings is limited by allowed working temperature. Low friction bearing, its internal also lower the heat generated by the corresponding, therefore the most suitable for high speed condition. Deep groove ball bearing and automatic self-aligning ball bearing under pure radial load, or angular contact ball bearing under combined load, compared to other bearings, can withstand the high rotational speed. And with a ceramic roller precision angular contact ball bearing or deep groove ball bearings, and even can achieve higher speed. Because in the design of the thrust bearing of the running speed can not as high as radial bearing.