Through the oil seal and shorten the axial length of journal bearing seal

Through the oil seal and shorten the axial length of journal bearing sealed spherical roller bearings manufacturer authors to share for you, support the train running journal bearing unit needs high reliability, in order to 600000 km or longer period of time without maintenance. In the shaft under the condition of low hardness, under axial loading shaft bending may lead to parts of the micro wear journal bearing unit. Fretting wear particle pollution can lead to internal poor lubrication of the bearing, wear and spalling and other defects. Need to shorten the axial length of journal bearing units, in order to reduce can bend a journal journal bearing defects. Seal oil seal is installed on the outer ring of journal bearing units, in order to prevent oil leakage. In order to effectively seal, it is necessary to make the oil seal and journal bearing ( Inner ring, roller and cage) There is enough space between the rotating parts. This place oil seal on the outer edge of the bearing width and limit the axial shortening of journal bearing unit. Or you can use more simple sealing structure, such as shielding plate to shorten the axial length. However, compared with the journal bearing with oil seal, journal bearing with shielding plate is tend to be more vulnerable to oil leakage. Newly developed 'short journal bearing type seal unit has the sleeve flange tip, can prevent the oil flow to the oil seal lip margin, and the new design of oil seal, optimization of the sealing lip shape and intervention. This improved the oil seal and allow oil seal is placed within the bearing width, the journal bearing unit axial length is shorter. Journal bearing unit has the same as the traditional product of carrying capacity, high speed rotation and oil sealing performance. Axial length shorten by about 15%, reduce shaft bending by about 30%, and the fretting wear and tear, it helps to durability of journal bearing.