Lubrication and sealing of jaw crusher bearings

Proper bearing maintenance can prolong the life of jaw crusher bearings. For bearing maintenance, the two * important points are lubrication and sealing. Let's take a look at the lubrication and sealing of jaw crusher bearings.

Lubrication of Jaw Crusher Bearings
Under the same working conditions, if the correct lubrication method is adopted, that is, the lubricant of the jaw crusher is correctly selected, and the bearing is lubricated and maintained, the service life of the bearing can be *ly improved. Early jaw crushers used sliding bearings and were lubricated with thin oil. However, with the continuous development of technology, more and more equipment use rolling bearings. There are still a few companies using thin oil lubrication, but the lubrication effect is not *. After a lot of research on bearing service life, various bearing manufacturers have proposed amendments to the traditional calculation method of bearing life, proposed the use of grease lubrication, and recommended the use of lithium-based synthetic oil with a penetration of No. 2 as the grease.

Sealing of jaw crusher bearings
When the bearings are lubricated with grease, labyrinth seals are commonly used. Depending on the sealing position, the labyrinth can be radial or axial. Generally, radial seals are easier to arrange. For large-size jaw crushers, because of the large deflection of the eccentric shaft, it is easy to cause labyrinth collision, so a larger gap is used. In order to enhance the sealing effect of the labyrinth, a grease adding hole can be set in the labyrinth, and hard grease can be added to seal the bearing.