Thin wall bearing product characteristics
In order to obtain low friction torque, high rigidity and good turning accuracy of the bearing, steel ball with small outer diameter was used. The use of hollow shafts ensures light weight and space for wiring. Thin-walled bearing has realized the bearing section of extremely thin, and also realized the miniaturization and lightweight of products. The diversity of products expands their range of USES.
The series of 6700 and 6800 have various kinds of dust cover, flange, stainless steel, wide width and so on.
Thin wall bearing maintenance procedure
Bearing installation and removal must be careful
Different types and sizes of thin-wall and deep-groove ball bearings have different installation methods and tools, including mechanical or hydraulic ones. Here is mainly to explain some general basic installation methods and precautions.
First, do not install hard on the ball, this will lead to ball and contact surface local overload, leading to premature failure of the bearing.
Second, do not hit the surface of the bearing with a hard tool, such as a hammer or screwdriver, as this will cause the outer ring of the bearing to break or become brittle.
Two, bearing cleaning
A clean working environment is very important for bearings. Thin-walled deep groove ball bearing ring rotation surface and rolling elements of the surface roughness is about 1/10 m, so smooth ball surface if contaminated, the impact is very serious. The lubricating layer between the rolling surfaces is usually 0.2~1 m. Granular impurities larger than the lubricant particle size will be overrolled by the rolling elements and will generate local pressure in the self-aligning roller bearing steel, eventually leading to permanent material fatigue. In addition to this, dust particles in the external environment up to 10 m in size can also cause damage to self-aligning roller bearings. This is why a clean working environment is so important for bearings.
Three, bearing technology testing
In the use of the process of overheating dry induction bearing working temperature, if the temperature is found to exceed the specified limit will automatically alarm, to prevent the occurrence of the ignition shaft. High temperature is often used to indicate that the bearing has been in abnormal condition. High temperatures are also harmful to bearing lubricants. Sometimes thin - walled deep - groove ball bearings overheating can be attributed to the bearing lubricant. If the bearing in excess of 125 ° C for a long period of continuous transfer to reduce the bearing life. The causes of high temperature bearing include: it may be that the bearing is not lubricated enough, the lubricant is unqualified, there are impurities in it, when the load is too large, it may also be that the clearance inside the bearing is not enough and oil seal causes friction, and so on.