The importance of sealing of spherical roller bearings

Sealing of bearings is to maintain good lubrication conditions and normal working environment of spherical roller bearings, to give full play to the working performance of bearings and to prolong the service life, the rolling bearings must have suitable seals to prevent the leakage of lubricants and the intrusion of dust, water or other dirt.

The sealing of bearings can be divided into two categories: self-sealing and additional sealing. The so-called bearing self-sealing is the bearing itself is manufactured into a sealing performance device. Such as bearing belt, this seal occupies very little space, easy to install and remove, the cost is also relatively low.

The so-called bearing plus sealing performance device, is in the installation of end caps and other internal manufacturing into a variety of performance sealing device. The selection of spherical roller bearing seal should consider the following main factors: bearing lubricant and type, bearing operating environment, the size of the occupied space, shaft support structure advantages, allowable angular deviation, sealing surface circumferential speed, bearing operating temperature, manufacturing costs.

Spherical roller bearings mounted on, if not carefully adjusted, the adjustment may lead to more bearing pain, friction and vibration. These may accelerate fatigue, reducing the life of mechanical components such as bearings may damage the service life. In addition, increased vibration and friction can greatly increase energy consumption and the risk of premature failure.

Thickeners also relate to lubricants, and grease water thickeners determine the resistance to water. In principle, grease does not mix different brands, even if the thickener grease, and likewise due to different additives affect each other. Use anti-rust oil to coat the bearings, clean gasoline or kerosene carefully, and then use clean high quality or high speed high temperature grease to coat the front installation. Sealed bearings do not have to clean fuel.

In the process of use, often spherical roller bearing operation of the basic monitoring of external, such as temperature, vibration and noise measurement conditions, these regular checks, early detection of potential problems, to prevent the machine accidentally suspended, so that the production plan can be achieved, to improve the productivity and efficiency of the plant.

During operation, proper bearing relubrication is required to perfect their performance. Bearing lubrication methods will be divided into grease lubrication and oil lubrication. In order to play a good spherical roller bearing function, to choose the right conditions for the purpose of the use of lubrication methods. If only consider lubrication, oil lubrication lubrication dominates. Can simplify the knowledge of the structure around the bearing grease.