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Discrimination of bearing damage - contact; investigation; listening
Source: China Bearing Network Time: 2013-04-27
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Contact is a very simple method; in industry; Palin's smooth problem can incur high temperatures; it can be felt by hand contact; this high temperature can be harmful to the smoothing agent in the forest; Even reaching the place where the Palin is heated; the contact of the bicycle is only the axis of the hub that is changing with the hand; this can feel the condition inside; the sensation indicates that the pit is present or the beads are not round now; Feeling is the lack of outstanding smoothness; and if it is a change of card, then the equipment that clarifies that the oil is dry or faulty makes Palin now over-displaced.
The investigation is mainly aimed at the appearance of Palin; see if the seal can be broken; unpack the seal to see if the smooth oil can be dried; black indicates smooth oil pollution or carbonization; white turbidity clarifies the water; The sooner the discovery is; the more dangerous the oil is after the change of oil.
Listening; industrial electronic stethoscope is used to check the condition of Palin; the snoring of depression means that Palin is working normally; and the sound of singer and sharp snoring may be other irregular business; that indicates that the bearing is in an abnormal working condition. .
Sharp snoring may be an inappropriate smooth formation; improper smoshing may be a metal conflict; while the sound of Sith may be smooth oil contamination. Irregular murmurs are announced by the crater of the raceway dent.
There is a simple way to bike without an electronic stethoscope; use a wooden stick on the front fork or the rear fork; then change; the center axle can also use this method; but because the sound of the center shaft is mixed with the rear axle Together; so poor judgment.
The most suitable of the above three methods is the contact; only the wheel needs to be removed; it can accurately feel the severity of the shaft damage.
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