Conditions to ensure "IKO bearing stability work"

Source: Bearing network time: 2014-07-15

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One; the bearing is in the working process; sometimes the outer surface of the IKO bearing will be squeezed into the external solid particles or hard foreign objects or the appearance of the metal surface; this will cause the bearing to form a furrow-like scratch; these solid foreign objects enter through the smooth medium Inside the bearing; follow the continuous work of the bearing; part of the conflict heat generation; easy to form part of the conflict surface deformation and conflict micro-welding; even able to present partial ablation; eventually lead to the appearance of bite.
Second, the bearing cracking has two major factors: fault and overload; when the applied load exceeds the data strength limit, the cracking of the part is called overload cracking; in the IKO bearing working process, there are also disadvantages such as overheating arrangement and partial burn; .
Pay attention to the following points from the point of view:
1. Selection of bearing type: The bearing type is usually selected according to the operating conditions of the supporting products and the receiving load. It is necessary to know whether the user's practical load can match the selected bearing; if the bearing does not meet the operational requirements ; should be quickly reorganized; but unless the special product is usually not a problem in the selection type.
2. Selection of bearing clearance: When purchasing bearings, it is usually only reported in the type and grade of the bearing; there is little demand for the clearance of IKO bearings; it is necessary for the business personnel to ask about the operating conditions of the bearings, the rotational speed of the bearings, Temperature and cooperation are directly related to the selection of bearing clearance. Generally, most of the motors below 3500 rpm use CM clearance; for high-temperature high-speed motors, relatively large clearance is required. Bearing clearance is installed. After that, the reduction will be caused by the increase of the inner hole and the reduction of the outer circle; the reduction of the clearance = the interference amount Ã— 60% (the bearing chamber is aluminum). The clearance before the bearing installation is 0. 01mm; The time interference is 0. 01mm; the clearance after the bearing is installed is 0. 004mm. In theory, the noise and the lifespan of the bearing at zero clearance reach the best condition; but in practice, temperature rise is considered. The problem is that the bearing has a clearance of 0. 002mm-0.004mm after installation.
3, the selection of grease: the selection of grease is usually based on IKO bearing speed, temperature conditions, noise requirements and starting torque, etc.; demand for the function of various oils are well known.
4. Selection of bearing seal type: IKO bearing smoothness can be divided into oil smooth and grease smooth. Oil smooth bearing is usually the choice of bearing; grease smooth bearing is usually sealed with dust cover or rubber seal. Dust cover is suitable for high temperature Or use a good environment; seals are divided into two types: touch seal and non-touch seal; touch seal has good dustproof function but large starting torque; non-connected seal starting torque.

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