IKO bearing preloaded volume control essentials and operating methods

IKO bearing state of burn injury refers to: the bearing raceway wheel, roller and cage in the rotation sharply fever until discoloration, softening, deposition and damaged. The main cause of bearing burn is due to the bad lubrication bearing, may use the informal lubricant, or lubricant too much, too little, is not correct. The second is probably too big load ( Preloading is too big) 。 Speed is too large. Clearance is too small. With water or other foreign matter invasion. If the above two cases are not the shaft, the accuracy of bearing box, shaft deflection. See here, I think everyone wants to know the solution, first of all, to study lubricants and lubrication method, choose the right IKO bearing lubricant, and its dosage, and the selection of the bearing must be corrected. Study to cooperate, bearing clearance, and preloading, and improve the sealing device. Check the shaft and the precision of the bearing housing. Preloaded spring deformation, load and deformation of the spring of involvement in advance in order to control the deformation of constant pressure pre-tightening load to mediation. Bearing axial displacement, deal with tapered bore the bearing in advance of eccentric bearing axial load and axial displacement of involvement, to control the axial displacement amount of preloaded to mediation. IKO bearing end cover padded, one end will lead to tighten, the other end of the first bearing not put into the gaskets, tighten the screws, when feeling shaft not free to move within the shafting has no clearance, with a feeler gauge amount out of the cover and bearing seat end clearance, will this value plus the clearance value is the thickness of the gasket. Bearing in the process of installation of prestressing quantity moderation war mainly is the Angle of the ball bearing, eccentric bearing, tapered roller bearings, taper Kong Shuang row cylindrical roller and so on, in the final stages of this a few kinds of bearing installation is to accurately mediation clearance, namely moderation pre-tightening quantity ( Load) , especially for machine tool spindle, etc have strict request for rotating accuracy, noise, temperature rise of shaft system, not only in the installation for the first time to moderate prestressing quantity ( Load) Mediation of clearance, and also need to mediate in use. Preloaded quantity restraint, to bring more, here are several moderate amount of preloaded mediation clearance. Eccentric bearing pre-tightening load testing is a hard fight, place a few with a special instrument to detect, mostly with dial gauge measuring shaft axial and radial displacement or starting friction torque to detect, some bearing overseas companies remain the best value for the pre-tightening load, recycling some special instruments and layout of pre-tightening load detection and mediation, realize the pre-tightening load can be abstemious. Nut tightening torque, the nut preloaded bearing, temperance nut tightening torque to mediate preloaded. Starting of eccentric bearing friction torque, IKO bearings in advance of starting friction torque and the axial load of involvement, preloaded temperance starting friction torque to mediation, are often used to install in pairs of tapered roller bearing axial preload.