36 Class Spherical ROller Bearing clearance skills and regular maintenance
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| Time：2017.12.15 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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36 Class Spherical ROller Bearing slot selection technique
Clearance is an important factor in the normal operation of rolling 36 Class Spherical ROller Bearing, which is divided into axial and radial clearance. Select the appropriate clearance, the rolling load in 36 Class Spherical ROller Bearing between the reasonable distribution; it can limit shaft (or shell) of the axial and radial displacement, ensure the precision of rotation axis; 36 Class Spherical ROller Bearing to work at a prescribed temperature; reduce vibration and noise, is conducive to the improvement of 36 Class Spherical ROller Bearing life. So. When 36 Class Spherical ROller Bearing is selected, the appropriate 36 Class Spherical ROller Bearing clearance must be selected.
When choosing a 36 Class Spherical ROller Bearing gap, the following aspects should be considered:
1, 36 Class Spherical ROller Bearing working conditions, such as load, temperature, speed and so on;
2. Requirements for the performance of 36 Class Spherical ROller Bearing (rotation accuracy, friction torque, vibration, noise);
The gap between 3, 36 Class Spherical ROller Bearing and the shaft and shell hole leads to the decrease of 36 Class Spherical ROller Bearing clearance.
When 4 and 36 Class Spherical ROller Bearing work, the temperature difference between the inner and outer rings leads to the decrease of the 36 Class Spherical ROller Bearing clearance.
5. Due to the different expansion coefficient of the shaft and shell material, the clearance of 36 Class Spherical ROller Bearing decreases or increases.
6, according to the experience, the most suitable working clearance for ball 36 Class Spherical ROller Bearing is near zero. Roller 36 Class Spherical ROller Bearing should have a small work gap. 36 Class Spherical ROller Bearing allows a certain number of pre tightening forces in the components with good support rigidity. In particular, it is pointed out that the so-called work clearance refers to the clearance of 36 Class Spherical ROller Bearing under actual operating conditions. There is also a kind of gap called the original gap, which refers to the gap before the 36 Class Spherical ROller Bearing is not installed. The original clearance is greater than the installation of the clearance. Our choice of clearance is mainly to choose the appropriate work clearance.
7. The clearance values stipulated by the national standard were divided into three groups: the basic group (0 groups), the small clearance assistant group (1, 2 groups) and the large clearance assistant group (3, 4, 5 groups). At the time of selection, under normal working conditions, the basic group should be preferred, and 36 Class Spherical ROller Bearing can get the appropriate work clearance. When the basic group can not meet the requirements of use, the auxiliary group clearance should be selected. Big clearance support group for 36 Class Spherical ROller and Bearing axis and the shell hole by interference fit, 36 Class Spherical ROller Bearing inner and outer rings of a larger temperature difference, 36 Class Spherical ROller Bearing deep groove ball to bear larger axial load or the need to improve the aligning performance, and requirements to improve the speed and reduce the 36 Class Spherical ROller Bearing friction moment and other occasions; small clearance aided applicable set of axial displacement in rotating accuracy, higher requirements need to strictly control the shell hole, and to reduce vibration and noise.
In order to make the 36 Class Spherical ROller Bearing fully play and maintain its due performance for a long time, it is necessary to do a good job of regular maintenance (periodic inspection). It is very important to improve the productivity and economy by the proper periodic inspection, the early detection of failure and the prevention of the accident.
1. Cleaning
When 36 Class Spherical ROller Bearing is dismantled and checked, the appearance record is done with photography and other methods. In addition, the amount of the remaining lubricants should be confirmed and the lubricants are sampled, and then 36 Class Spherical ROller Bearing should be cleaned.
The cleaning and cleaning of a, 36 Class Spherical ROller Bearing are carried out, and a metal grid can be placed at the bottom of the container used.
B, when washing, use a brush to remove grease or adhesive in the oil. At this time, if 36 Class Spherical ROller Bearing is rotated in the oil, it will be noted that the rolling surface will be caused by the damage of the foreign body.
When C and finishing, 36 Class Spherical ROller Bearing is slowly rotated in the oil, and it must be carried out carefully.
The usual cleaning agent is neutral and non hydrated diesel or kerosene, and sometimes the temperature alkaline solution is used according to the need. No matter which kind of detergent is used, it should be regularly filtered to keep clean.
After cleaning, the antirust oil or antirust grease is coated on 36 Class Spherical ROller Bearing immediately.
2, inspection and judgment
In order to determine whether the 36 Class Spherical ROller Bearing can be reused, we should focus on checking its dimensional accuracy, rotation accuracy, internal clearance and mating surface, raceway surface, cage and sealing ring.
For the results of the inspection, it can be judged by the use of 36 Class Spherical ROller Bearing or proficient in the 36 Class Spherical ROller Bearing.
The standard of judgment varies according to the mechanical properties and the importance and the inspection cycle. In the event of the following damage, 36 Class Spherical ROller Bearing shall not be reused and must be replaced.
1) fracture and defect of 36 Class Spherical ROller Bearing parts.
2) the stripping of the rolling surface of the raceway surface.
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