Sounding to check the size and sound quality of the rolling bearing in operation sound, bearing even a slight peeling or other damage, also making an abnormal sound and the irregular tone, with the measured sound able to distinguish. The use of hearing to recognize irregular operation is a very common method. For example: With the electronic stethoscope to certain parts perceptible abnormal noise often experienced operatives.
1, if the bearing is good even turn state will issue a muffled whining sound. If issued a sharp hissing sound, creak sound and other irregular sounds, often bearing even turn in a bad situation. Sharp creak noise may be caused due to improper lubrication. Inappropriate bearing clearance will cause a metallic sound.
2, the dimples of the recessed track in the bearing outer track will cause vibration, and cause smooth crisp sound.
3, if the percussion scars caused due to installation can also cause noise, this noise is with the level of the rotational speed of the bearing is different.
4, if intermittent noise, rolling elements may be damaged. This sound occurs when the damaged surface is rolling out of date, if the bearing contaminants often cause hissing sound. Serious with the Order of the damage will produce irregular and huge noise.
Bearing damage can of course, by listening to perceptible, but usually to the bearing must be replaced immediately not. Therefore, a better approach such as the use of such to skf electronic condition monitoring instruments (Electronic Condition Monitoring). Compared to the old method using a stick or screw than the sub arrived on the bearing housing, the other end of the stick to the ear, new inventions can ensure a safer, more accurate estimates of the bearing condition.
Other News:
failure can be judged by sound of rolling bearing
Paul Ryan's budget plan sees balance by 2023, modestly deeper cuts
Mexico readies bill to shake up telecoms, TV industries
Steady job gains seen bolstering economy
Elizabeth Warren Wants HSBC Bankers Jailed for Money Laundering
Sheryl Sandberg: On a mission to elevate women
Three CIA contractors to pay $3 million to settle corruption allegations
Egypt's interior minister won't allow 'militias'
