Why the needle roller bearings for lubrication operation

Why the needle roller bearings for lubrication operation source: this website the author: the administrator to release time: 2013 - 10 - 19 08:46:55 views: 0 often see operators for needle roller bearings for lubrication operation, lubrication why? No lubrication, no? Lubrication has what good? One is in the form of bearing ring, rolling body and touch each other part of the retainer, prevent metal contact, reduce friction and wear. 2 o 'clock is discharge frictional heat and cooling. Circulation method to oil and so on can oil discharge by the friction heat, or by an external sound of heat, cooling. To prevent hotbox, prevent aging oil itself. The third is the extension of the fatigue life. Fatigue life of rolling bearing, in the rotation, good lubrication performance of the rolling contact surface, extend; On the contrary, the oil viscosity is low, the thickness of lube film is not good, is shortened. Then the point is to prevent foreign matter into the bearing internal, or to prevent rust and corrosion effect. At the beginning of the actual people to the main purpose of the rolling bearing lubrication is to reduce the bearing internal friction and wear. But found that after the lubrication for needle roller bearings service life has greatly improved.