Shandong Xinkaite Bearing Co.,Ltd.
Unified Social Credit Code: 9137 1525MA3C 5428XP
Production Department
Address: Xu Village Industrial Garden, Gan Town, Guan County, Shandong
Tel: +86 635 5638235
Fax: +86 635 5638808
Mobile: +86 15563545668
Service Hotline: 4000 305204 Sales Department
Address: 314 Puli Mansion, Beixiaoxinzhuang West Street, Jinan City, Shandong
Tel: +86 15688862750
Fax: +86 531 87901699
WhatsApp: +86 15688862750
Skype: live:XinKaite
Email: xkte@xinkaite.com
Fault damage adjustment pretightening method for judging CEMA idler
Clicks:3637 Date:12-20
In order to judge whether the disassembled bearing can be used again, check it after CEMA idler is washed. Carefully check the raceway surface, rolling surface, mating surface condition, the wear condition of the cage, the increase of bearing clearance, and whether there is any abnormal damage on the dimension accuracy. Non - separate small ball bearings, the inner ring is supported by one hand, and the outer ring is rotated to confirm whether it is fluent.
The conical roller bearing is divided into the shape of the shaped bearing, which can be checked separately for the rolling body and the raceway surface of the outer ring.
Because large bearings cannot be rotated by hand, it is important to check the appearance of rolling body, raceway surface, cage and side surface. The more importance of bearing is, the more careful inspection is required.
The judgment of whether or not to be used is to consider the extent of CEMA idler damage, mechanical properties, importance, operating conditions, and the duration of the next maintenance. However, the following defects can not be used again. It is necessary to change the new bearings.
Although the noise caused by bearing manufacturing factors is essentially caused by manufacturing errors, it is actually related to the selection of lubricants, the installation conditions of bearings, the accuracy state of shaft and bearing seat. This kind of noise is divided into two kinds, that is, the sound of the cage and the sound of the vibration pattern, and the following are as follows:
(1) retainer and its control method. Cage sound is a periodic vibration and noise emitted by the vibration of the cage and rolling body impact. It is easy to appear when Kong Song and friction are big. This noise occurs mainly in ball bearings and CEMA idler, and stamping cage and cage will occur, use grease lubrication or oil lubrication will occur, but in poor lubrication or lubricant dry, large radial clearance, the outer ring of the bearing moment load, and cage structure and the precision are not bad is more likely to happen, cage webs or rivet head will suddenly serious fracture.
Cage noise control and vibration method is used; good lubrication lubricant; reduce bearing installation error; compression bearing radial clearance or proper axial preload, and with good precision bearing cage structure reasonable, or changing the holder firmly without wear CEMA idler.
(2) chatter noise and its control method, the chatter noise is directly related to the rolling surface waviness of the bearing, which is a pure tone noise. For constant speed, its frequency is also constant, and for the changing speed, its frequency will also change.
