ntn Bearing sharp noise may be due to improper lubrication

Incorrect installation and removal will reduce bearing life. When a small bearing assembly will enable the hand-hammer and a simple auxiliary sleeve. For medium and small bearings, installation of hydraulic machine can be used to exert pressure on the inner ring will be set to a journal on the bearing pressure; for larger medium and large bearings, often used temperature method assembly: Bearing into the hot oil in the heated will be set into the journal bearing. The heating temperature is usually 80 ~ 100 ℃, must not exceed 120 ℃. Attention to preventing the bearing of local over-burning.
For a more loose with a small bearings, can be hand-hammer and brass rod from the back along the bearing inner ring surrounding the bearing gently knockout. Demolition of bearings with pressure method, use is more rod removal device (commonly known as Rama), which is pulled by three hooked claws removed bearing inner ring and the bearing.
How do I import the correct identification of ntn bearings Noise:
A sharp creak noise may be due to inadequate lubrication caused. The bearing clearance can also cause inappropriate metallic sound. Bearing outer track of the concave track dent will cause vibration, resulting in smooth crisp sound. If as a result of installation of the scars will be knocking noise, this noise will be as high or low speed bearings vary.
Irregular use of hearing to identify the operation is a very common method. For example: With electronic stethoscope to a particular part to detect the abnormal noise is often experienced operators used.
ntn bearing damage can of course, by listening to perceptible, but usually at this time has reached a bearing must be replaced as soon not. Therefore, better methods such as using the situation as skf electronic monitoring instruments (Electronic Condition Monitoring). Compared to the old ways to use a stick or a snail compared to the child arrived in the bearing box, the other end of the stick to the ear, new inventions to ensure a safer, more precise estimate bearing condition.
If there is intermittent noise, then scroll pieces may suffer. This sound is when the damage occurred in the surface of rolling out of date, bearing if contaminants often cause hissing sound. Serious damage to the same contractors will have an irregular and a huge noise.
ntn bearing, if not even turn in a good condition will be issued Didi De hum sound. If issued a sharp hissing sound, creak sound, and other irregular sounds, often expressed with bad bearings in the transfer situation.

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