Rubber bearings on the market today are very versatile and have a particularly wide range of uses. This type of rubber bearing is generally used in machinery. Its main role is to support a level to reduce friction. Therefore, the bearing accuracy, noise, etc. are directly related to the use of the machine and life. Here we come to understand the selection of rubber bearings , as well as the use of rubber bearing precautions. 
Rubber bearing selection method
1, the choice of bearing model
The type of the general bearing is required to pass through some relevant technical professionals, and then select the bearing according to the configured point of use of the product and the load it bears. The business staff mainly understands whether the actual load of the user is in conformity with the selected bearing. If the bearing cannot meet the requirements for use, the customer should be recommended to re-select the model as soon as possible, but unless the special product is selected on the model, there will generally be no problem.
2, the choice of bearing clearance
When an ordinary consumer purchases a bearing, he or she will only provide the required model and grade to the merchant. Few will ask for the clearance of the bearing. Business personnel must ask about the conditions of use of the bearing, where the bearing speed, temperature, and tolerances are directly related to the choice of bearing clearance. The choice of grease is generally based on the bearing speed, temperature conditions, noise requirements and starting torque and other aspects of the selection, requiring business personnel to understand the performance of various oils. 
3, the choice of bearing sealing type
Bearing lubrication in terms of it is divided into two types, one is oil lubrication, and the other is a grease lubrication, then the general case of oil-lubricated bearings are the choice of the form of bearings, grease-lubricated bearings are generally selected dust cover or rubber Seals seal. The dust cover is suitable for high temperature or good environment. The seal is divided into two kinds: contact seal and non-contact seal. The contact seal has good dustproof performance but large starting torque. The non-connected seal has small starting torque, but the sealing performance No contact is good.
Use rubber bearing considerations
1, because the rubber bearing is a high-precision thing, if it is not appropriate in the assembly then it is very easy to cause damage, resulting in the bearing can not be used normally, the bearing should have a special mold in the assembly, can not arbitrarily beat. When pressing into the shaft, only the small circle can be stressed. When the large circle is pressed, only a large circle can be stressed. When assembling, pneumatic or hydraulic pressure is required. When pressing, the upper and lower molds must be outside the horizontal state. If there is inclination, the bearing groove will be caused. Caused by damage to the bearing, the bearing generates a sound. 
2. When the bearing is mounted on the top of the rotor to perform balancing movement, it is generally very easy to put some dirt generated by the movement into the interior, so it is better to balance the bearing before loading. In order to facilitate the assembly, some manufacturers apply some oil or grease in the bearing room to lubricating the assembly, but it is often difficult for operators to control the amount of oil. If oil or grease accumulates in the bearing room, it is easy to enter the bearing along the shaft when the bearing rotates. The bearing room is best not to be coated with oil or grease. If it is not coated, control must not be accumulated in the bearing room. .
3, then the paint rust more prominent features, in fact, is a sealed motor, when the sound of the assembly motor is very good, but when it is placed in the warehouse for some time, the motor abnormal sound becomes very large, remove The bearing has serious rust. In the past, many manufacturers thought that it was a bearing problem. After our constant publicity, now the motor factory has realized that it is mainly a problem of insulating paint. 
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