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Rolling road sound source is the inherent vibration caused by load ring after. Due to the elastic contact rings and rolling elements of nonlinear vibration system. When the lubrication or machining precision is not high it will inspire the vibration associated with the elastic characteristics, transfer into the air into a noise. As everyone knows, even using the modern technology of manufacturing the highest machining integral eccentric bearing parts, its work surface there are tiny geometric error is not a degree, so that the raceway and rolling body produce tiny wave excitation vibration vibration system.
The purpose is to reduce the EDA bearing lubrication friction and wear of the bearing internal, prevent the following burn, the lubricating effect.
<1>. to reduce friction and wear.
In the contact part of bearing rings, rolling body and a holding device, prevent metal to metal contact, reducing friction, wear.
<2>. extension of fatigue life.
The rolling bearing fatigue life, in rotation, the rolling contact surface of good lubrication, extended. On the contrary, the oil viscosity is low, the lubrication oil film thickness is not good, will shorten the.
<3>. drained friction heat, cooling.
Circulating oil methods can be oil discharge the heat generated by friction, or by an external heat, cooling. To prevent the EDA bearings overheating, prevent the aging of lubricating oil.
Other <4>.
But also to prevent the foreign body bearing, or the effect of preventing rust, corrosion.
Lubrication method:
Method of lubricating bearings, divided into grease lubrication and oil lubrication. In order to enable the EDA bearing play function very well, first of all, to choose suitable conditions, using the method of lubrication. If only consider lubrication, oil lubrication of lubrication advantage. However, lubricating grease can simplify the specialty whole camshaft bearing structure around, compare the advantages and disadvantages of grease lubrication and oil lubrication.
Although EDA bearing raceway noise is unavoidable, but can take high precision machining parts work surface, the correct selection of denoising bearing and precise use of the bearing so that the damping.
EDA bearing, a rotating inner ring and outer ring raceway surface, due to contact with the rolling scrolling, and running track to the dark side, the running track of the raceway surface does not belong to abnormal, thus can be informed load conditions, so when removing the eccentric bearing, please strict careful and observe the raceway the running track.