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Bearing seals and skill improvement

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Bearing seals are the key components for normal operation of bearings in harsh environments; bearing seals protect bearings from corrosion and contamination; make bearings in outstanding hygienic and smooth conditions; extend the life of bearings.
Generally speaking, bearing seals are more effective than dust caps and are subject to shifting sensitivity and lower speed transitions. Bearing seals are depicted; it is necessary to consider the function and delivery system of the smoothing agent and the operating conditions of the aspirations. .
Aligned with the use of roll bearings; in the application to full of high load, strong impact, and water and rust intrusion; and developed a new type of ultra-high load capacity sealed, clean and smooth roll bearings. Roller bearings can be added 34 % load capacity; higher reliability; long-term operation under harsh and smooth conditions. Bearings improve the bearing function after sealing; blending the advantages of optimized mechanical principles, new materials and seals, and easy to operate.
In the usual sealed roll bearings; the main seal and the width constrain the length of the roller; that is, the bearing load of the bearing is constrained. Thus; in the depiction of the new roll bearing; the retaining frame edge is included in the seal blank; Make the roller longer; this will make the diameter of the support frame increase and the roller lengthen; while the length of the support frame is not added; the basic additional load capacity of 34% is increased; equivalent to extending the bearing life of 27 times. The quality TF selected for this roller bearing Bearing steel; is also the key to improving the function of bearing sealing; due to impurities and smooth unevenness in the material guess is the main reason for the premature failure of the bearing.
Experience marked; under contaminated operating conditions; the bearing is easy to enter debris; and these crumbs damage the raceway; constitute stress gathering. In addition; if it is smooth and uneven; make the metal surface hard touch; constitute a small "peeling" damage ; will also lead to the touch area stress gathering; these two results cause the metal surface of the stress gathering part to crack; and shorten the bearing life.
The study indicates that the arrangement of the bearing steel can be improved; the operating life of the bearing under the condition of impurity contamination or the marginal smoothness can be improved; and the ability of the bearing to release the stress at the margin is improved.
The best protection for the bearing is: when the impurity appears, it will hinder it. The new bearing seal has both advantages. This new type of hole bearing seal can handle the negative pressure in the bearing and avoid Inlet water; the main seal is not directly exposed to water; it is not "breathing" in water; it can also function to block impurities in the groove. The usual bearing seals are linear touches in the rotation and stop conditions; Adhere to the high-strength sealing function; while this kind of seal works; replace the linear touch with the surface touch; then get used to the sealing requirements in the bearing rotation; it is tightly sealed; no large negative pressure occurs.
In order to prove the efficiency of the new type of hole bearing seals; in the experiment; the operating speed of the bearing increased from 100r/min to 700r/min; and the radial load of 294kN was continuously applied; together with water spray of about 100L/min. The usual hole type bearing seals are added at this time; negative pressure is added; and the new type of hole type bearing seals are pressed against the negative pressure; ensuring the normal operation of the work.

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