Knowledge about bearing the importance of stability - bearing grease

Proper use of the bearing grease, must know the grease in the bearing movement. Ensure the stability of the grease. Fill in the rolling bearing grease movement, with SKF bearing rotation, generally can be divided into two stages. By the way, by the way, for bearing lubrication, attention should be paid to the amount of grease. Details please refer to 'SKF bearing lubrication grease when the dosage of introduction' are introduced. In general, SKF bearing grease filling amount, in the direct involvement is always more than the actual requirement of the lubrication, the frame and the bearing cover cavity, and forms an outline in rolling around in vitro. Lu in this process, due to excess grease resistance, bearing temperature rise quickly. Although most redundant grease at the beginning of the operation is being squeezed out, and squeezed in the raceway attachment grease could still be turning into the groove between roller. Most of these in the early stages of the bearing contributed to grease quickly ( Less than a minute) Is being squeezed out of raceway and the accumulation in the grease in the bearing rotation of systemic circulation at the same time, have a small amount of discharge. Bearing (degrees still continues to rise at this moment, until the redundant grease were discharge, may be called the grease running-in stage, according to the structure of the bearing grease factors such as quality, filling quantity, this paragraph of time can last more than ten minutes, or even a few hours. Bearing grease is completely after discharge, the rest of the rest of the small amount of grease in the rolling element and raceway, keep contact with each other, cadastral wedge formed by a thin film of grease, so as to enter the bearing contributed to stage. The temperature decrease and balance. That is to say, the long-term lubrication, mainly rely on the film of grease. In addition, in the process of bearing long-term operation, rolling element and raceway profile near detachments and keep on the shelf to atrophy and grease base oil, flow into the race, between supplement to lubrication also to have certain effect. Different bearing grease in the bearing form outline to traffic is not the same, must form the contour comparison is, shorter running-in time, bearing temperature is low, in the long-term operation and smooth, this is a kind of ideal grease, so is especially important for into the canal of grease. Some so-called vortex type grease is not, is not easy to form the outline, even form the contour is easy to collapse, then roll back to the redundant grease in the tiny repeatedly chronically stirred by strong column, bearing torque is big, high temperature, and uneven, also may produce noise, grease also easy metamorphism and erosion.