Date: 2013-08-20

Clearance installation the overall eccentric arm bearing a reasonable choice

The clearance is an important factor bearing can work. Select a suitable bearing clearance, so that a reasonable distribution of the load between the rolling elements; can limit the shaft (or housing) of the axial and radial displacement in order to ensure the accuracy of the axis of rotation; overall eccentric pivot arm bearing in claim temperature can work; reduce bearing vibration and noise, we can see that the bearing clearance has a great influence on bearing life, temperature, vibration and noise. In selecting bearing clearance, in addition to the working conditions (such as load, speed, temperature, etc.) and the bearing performance requirements (such as friction torque, vibration and noise, rotation, accuracy, etc.) should be considered bearing, should be considered:
1. Bearing and shaft and housing interference fit lead to reduced clearance;
2. Bearing operating temperature difference between the inner and outer ferrule lead to reduced clearance;
3. Shaft and housing material of different coefficients of expansion led to decrease or increase the clearance.
In about 25% of all premature bearing damage caused by improper or incorrect installation. A variety of applications may need to use heating, mechanical or hydraulic installation method to work correctly and efficiently install the whole eccentric arm bearing. Select the installation method that suits the application will help extend the bearing life and reduce the cost of premature bearing failure and potential damage to the applications.
Heating oil bath bearings, this method may contaminate the bearings, causing premature bearing damage. Today, induction heating is heating the bearings are the most commonly used means, which is because of its controllability, efficiency and safety are high. Some bearing manufacturers identified the induction heater R & D standard for bearing applications. The overall eccentric pivot arm bearing induction heater has a lot of features to help prevent damage to the bearings in the heating process.

 

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