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The correct method of bearing assembly

wallpapers News 2020-12-09
Whether the bearing is installed well or not will affect the accuracy, life and performance of the bearing. Therefore, please fully study the bearing installation, that is, please install the bearing in accordance with the operating standards including the following items.
Small bearings are widely used in presses. Pad the spacer block into the inner ring, and press it statically with a press until the inner ring is in close contact with the shaft shoulder. Mounting the outer ring with a spacer block to install the inner ring is the cause of indentation and crushing on the raceway, so it is absolutely prohibited.
During operation, it is best to apply oil to the mating surface in advance. If you have to use a hammer to install, you must put a block on the inner ring. This practice has repeatedly become the reason for bearing operation, so it is limited to the case of small interference and cannot be used for large interference or medium and large bearings.
For non-separable bearings such as deep groove ball bearings, where the inner ring and outer ring need to be installed with interference, use a spacer block to pad, use screw or oil pressure to press in the inner ring and outer ring at the same time. The outer ring of the self-aligning ball bearing is easy to tilt, even if it is not an interference fit, it is best to install it with a pad.
For separable bearings such as cylindrical roller bearings and tapered roller bearings, the inner ring and outer ring can be installed on the shaft and housing respectively. When combining the installed inner ring and outer ring, the key is stability Close the two firmly so that the center of the two does not deviate, and pressing it will cause the raceway surface to jam.
Sliding bearing is a kind of sliding friction bearing, which is characterized by stable operation, reliable and low noise, and can withstand heavy loads and large impact loads. According to different structural forms, it can be divided into integral type, split type and tile type.

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