At the institutional operation, installation INA Bearing parts allow a certain temperature, when the stroking mechanism housing should not feel hot to normal, otherwise indicates that the bearing temperature.

     Bearing temperature causes are: oil quality does not meet the requirements or deterioration, lubricant viscosity is too high; institutions assembly too tight (lack of space); stainless steel bearing assembly tight; bearing ring on the shaft or housing rotation; Load too large; bearing cage or rolling fragmentation.

     Rolling in the work allow slight noise, if the noise is too large or unusual noise or crash, it indicates that the bearing has failed.

     Rolling noise is more complex reasons, one is the bearing inner and outer rings with surface wear. Since this kind of wear and tear in, destroyed the bearings and housings, stainless steel bearings and shaft with the relationship, leading to a deviation from the correct position axis, the axis moves at high speed generate abnormal sound. When INA bearing fatigue, the surface metal flake, but also make the bearing radial clearance increased abnormal sound. In addition, the lack of bearing lubrication, the formation of dry friction, and bearing broken, etc. will have an unusual sound. After bearing wear loose, loose cage damage, bearing damage will produce abnormal noise.

     1, the tile surface corrosion: spectra showed that the concentration of non-ferrous metal element anomalies; iron spectrum, there were many non-ferrous metal components submicron wear particles; lubricants excessive moisture, acid exceeded.

     2, the journal surface strain: iron spectrum in cutting abrasive or black iron oxide particles present on the surface of metal tempering colors.

     3, the journal surface corrosion: spectra showed abnormal concentrations of iron, iron spectrum, there are many sub-micron particles of iron content, excessive moisture or oil acid value exceeded.

     4, the surface strain: iron spectrum were found to have cutting abrasive, abrasive ingredients ferrous metals.

     5, tile back fretting: spectra showed abnormal concentrations of iron, iron spectrum, there are many iron content submicron wear particles, water and oil acid abnormalities.

     Rolling sound and control the impact of the larger models of ball bearings or plain bearings in the low-speed operation under radial load, the smaller the centrifugal force of the rolling bodies, in a non-load zone will impact rolling or roller cage rather noisy. However, as the speed increased, the sound will disappear.

     INA bearing raceway raceway sound and control the sound is running when the bearing, the rolling body raceway rolling issued a slippery continuous sound, is all stainless steel bearings are the basic sound peculiar happened. Sound that is generally bearing raceway sound with other sounds. Ball bearing raceway sound is irregular frequencies above 1000Hz, its main frequency does not change with the speed, but the acceleration of its sound pressure level increases with the speed.