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51205 Thrust Bearing 25x47x15 Thrust Ball Bearing Bore ID Inner Diameter 25mm x OD Outer 7mm x Width 15mm
Bearing models beginning with "5" are thrust ball bearings, for example: 51100, 51316, 52340, 53415, 54406, etc.
Thrust ball bearing installation method
The installation and operation of thrust ball bearings is relatively simple, but in actual use, errors often occur, such as: the position of the tight ring and loose ring of the bearing is wrong, resulting in the bearing not functioning normally, and the journal is also worn. The installation of the tight ring on the end face of the stationary part is a wrong assembly; the shaft diameter drives the tight ring, causing friction between the tight ring and the end face of the assembly. At the same time, the axial load force during work will also cause the friction torque to be greater than the inner diameter Cooperating with the resistance torque occurs, resulting in forced rotation of the mating surface, causing severe wear of the journal.
Therefore, the following points should be paid attention to when installing thrust ball bearings:
1. According to the internal test of the bearing, the hole diameter difference between the tight ring and the loose ring is 0.1-0.3mm
2. The bearing loose ring is assembled on the end face of the stationary part.
The above are the precautions for the installation of plane thrust ball bearings. The simpler things need to be paid more attention to, so as to avoid the bearing being damaged and affecting the work. When installing thrust bearings, the most important thing is to remember the positions of loose and tight rings.
When installing the bearing, the bearing seal should be removed, washed and then coated with clean high-quality lubricating oil.
When installing the bearing, it should be evenly stressed and not hammered. If the fit interference is large, put the bearing in mineral oil and heat it to 90°-100°, then install it immediately.
The warehouse where the bearings are stored should be clean and clean, and the relative humidity should not exceed 65%.
Bearings in stock should be cleaned and oiled every other year, and the oil seal package should be kept in good condition.
When using bearings, there should be good sealing and dustproof devices, and the working conditions should be checked frequently.
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