Select precautions imports Japan IKO bearing clearance

Web Design And Seo For www.china-webdesign.com

china bearing - China Manufacturer

Thank you for inquiry my china bearing, Tel : 0086-0379-64390888, E-mail: liuping@lyzyc.cc

http://www.lyzycbearing.com/

Rolling bearing radial clearance means a ferrule stationary, while the other rings in Japan IKO bearings axis perpendicular to the direction, moving from one extreme position to the other extreme position, the amount of movement. Select the correct bearing clearance or not, the machinery running accuracy, bearing life , friction, temperature rise, vibration and noise, have a great impact. If selected radial bearing clearance is too small, will withstand the load rolling increasing the number of contact stress decreases, IKO bearing operation is relatively stable, but the frictional resistance increases, the temperature rise will also increase. Conversely, the contact stress increases, vibration, and the reduction in frictional resistance, low temperature rise. Therefore, according to the conditions of use of the IKO bearings, to select the most appropriate clearance value, has a very important significance. Election fact bearing clearance, must take full account of the main factors of the following types:
1, imported bearings and shaft and shell holes with elastic will lead to changes in the value of the bearing clearance. General bearing mounting clearance value will shrink;thrust bearings
2, IKO imported be arings in institutions during operation, due to the heat of the shaft and housing conditions different between the inner and outer rings temperature difference, which will lead to the reduction of the clearance value;roller ball bearing
3, due to the shaft and the shell material due to different coefficients of expansion will result in the reduction or increase of the clearance value.
Clearance values usually choose the most suitable radial bearing clearance value is specified in the bearing clearance standards group. Basic group of the the clearance values apply to general working conditions, should be preferred. The basic set of clearance can not be used for radial bearings work under special conditions, the choice of the auxiliary group clearance values. Such as deep groove ball bearings 3,4,5 clearance values applied to the bearing and the shaft and shell holes tighter than normal with the in terference fit or IKO bearing inner ring and outer ring larger temperature difference between mechanical components in. Center of the shaft and housing bore centerline of steep, and in order to increase its axial load capacity, bearing speed limit, as well as to reduce Japan IKO bearings frictional resistance and other working conditions, we can use the first 3,4,5 Group clearance values. Require rotating precision swimming or limit the axial axis, generally use the second set of bearing clearance values (small clearance value), if necessary, to give a certain amount of pre-load "preload" to improve the rigidity of the shaft.
Imports bearing surface strain: Ferrography in cutting abrasive, abrasive ingredients for the non-ferrous metal.
2, IKO bearing journal surface corrosion: spectra showed abnormal concentration of iron, iron spectrum the many iron components submicron particles, lubricants excessive moisture or acid value exceeded.
3, the bearing pad surface corrosion: spectra showed abnormal concentration of non-ferrous metal elements; Ferrography submicron wear particles of many non-ferrous metal components; lubricants excessive moisture, acid value exceeding.
4, bearing tile back fretting wear: Japan IKO bearings spectra showed abnormal iron concentration, the many iron content in the sub-micron wear particles in the iron spectrum, lubricants moisture and acid abnormalities.
Liquid lubrication conditions, the sliding surface lubricants separate without direct contact, can also greatly reduce friction loss and surface wear, the film also has a certain vibration absorption capacity
IKO imported bearings journal surface strain: Ferrography, the cutting abrasive or black iron-based oxide particles, metal surface tempering color.ceramic ball bearing