IKO plane bearing noise inspection criterion to stop remaining

Can be removed in order to distinguish the bearing can be used again, check after the IKO bearing wash clean. Carefully check the raceway surface, rolling surface, cooperate with the state, adhere to the frame of wear condition, the increase in the surface bearing clearance, and presence of damage of dimensional precision landing, and exception. Non separation small ball bearing, the extent of support to inner ring with one hand, rotate the outer ring can confirm fluently. Tapered roller bearing type bearing separation, able to roll body, the outer ring raceway surface check respectively. Large bearing can't rotate with the hand, pay attention to check the rolling element and raceway surface, adhere to the rack, guard surface appearance, such as the importance of bearing high needs careful check. Whether to use the discriminant, is thinking about IKO bearing damage levels, mechanical properties, importance, and operating conditions, to the next overhaul period and resolution. However, if you have the following defects will not be used again. A new bearing required. The noise of the plane bearing manufacturing elements make up is essentially attributable to manufacture error, but still in practice and smooth agent selection, bearing installation conditions, the accuracy of the state of the shaft and bearing seat. This noise and divided into two categories, adhere to sound and sound the marks, the points above are as follows: ( 1) Adhere to sound frame and its control way to frame refers to the violent vibration of frame and impact roller and a cyclical vibration and noise, in pocket Kong Song and friction when the big easy. This kind of noise in ball bearings and IKO bearings, main attack and stamping adhere to frame and entity will attack, use of grease or oil smooth smooth will attack, but when smooth adverse or smooth agent used, big radial clearance, the outer ring accept torque load, and adhere to the frame structure and precision is not high, are more likely to attack, serious when keep frame girder or rivet head will be suddenly broken. To control on aircraft noise and vibration; Use smooth performance good smooth agent; Reduce the bearing device error; Tightening bearing radial clearance or appropriate to axial preload, and has a good precision structure reasonable adhere to the plane of the bearing, or switch to adhere to stand strong and without wear IKO bearings. ( 2) Grain noise and its control method of vibration marks is directly related to the bearing rolling appearance waviness of noise, noise, this is a kind of pure tone of constant speed, its frequency is constant, and about the speed of change, and the changes of its frequency.