NSK bearings, lubricated the role is fairly large, and the conventional lubrication methods there are a number of drawbacks, today, as the General agent of NSK bearings, de flying industry to answer your questions on this issue. Oil-air lubrication system to overcome the disadvantages of oil mist lubrication and grease lubrication, large has the following advantages:
(1) can select lubrication points according to actual needs and the required quantity of oil lubrication points, and save lubricant.
Because oil mist can spread, it is almost impossible for a single quantitative NSK bearings for oil and grease lubrication of a fatliquoring far rationed. While the oil-air lubrication oil in droplet form access to NSK bearings, lubrication points can be arbitrary circuit design time controls, each lubrication point oil through oil and gas installations scheduled separate supply, quantitative, which is easy to implement on-demand supply, avoiding waste and oil usage oil mist lubrication only one-tenth.
(2) location of oil-air lubrication to keep the NSK bearing friction points total with fresh lubricant and grease lubrication oils have a certain life cycle, at the early stage more lubricant, easy to stir the hot, insufficient to the latter, not a good lubrication conditions, due to the complicated operation when relubricated, in practice are mostly one-off fatliquoring until NSK bearings replaced.
(3) oil-air lubrication can reduce the bearing temperature rise, thus making the spindle bearing DMN value higher. Experiments proved that, at the same speed, of the same type, the same spindle using the oil-air lubrication oil mist lubrication of the bearing outer ring temperature rise reduces 9~16℃; if keeping NSK bearing's outer ring the same temperature rise, oil-air lubrication bearing speed factor increased to 25% per cent.
(4) oil-air lubrication no pollution to the environment or pollute less. Because of "oil + gas" by bearing discharged after basic is compressed air, itself does not contain oil or oil-containing minimal compared to oil mist lubrication, more conducive to health.
(5) as NSK bearing internal constantly have fresh lubricant to add and fresh air out, foreign material is difficult to access, internal dirt easy discharge, which can improve the service life of the bearing.
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