Analysis of the correct device method for special bearings for excavators

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Analysis of the correct device method for special bearings for excavators

Source: China Bearing Network Time: 2018-03-04

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The inner ring of the excavator bearing is tightly coordinated with the shaft; the outer ring of the excavator bearing is loosely cooperating with the casing; this is the characteristic of the special bearing for the excavator. In order to reach the long life and high function; the engineer pointed out that there are other Kinds of bearing type requirements:
Assume that the bearing outer ring and the housing hole are tightly cooperated; the inner ring and the shaft are loosely cooperative; the excavator bearing can be pressed into the housing first; then the outer diameter of the device sleeve should be slightly smaller than the diameter of the housing hole. The pressure of the device and disassembly should be directly added to the end face of the tightly working excavator bearing ring; the pressure cannot be transmitted through the excavator bearing dynamic body; as this will form an indentation on the outer surface of the excavator bearing operation; affecting the normal operation of the excavator bearing .
The common type of excavator-specific bearings is the spherical roller bearing; the same type of excavator bearing inner ring and shaft; the outer ring and the housing hole are tightly cooperated; the end face of the device sleeve should be made to be compacted together The ring of the inner end of the outer ring of the machine bearing; or a disc and device casing; the pressure is transmitted to the inner and outer rings together; the excavator bearing is pressed into the shaft and the casing. This device is uniquely used for energy Actively aligning spherical bearing device.
In addition, due to the particularity of the layout of the excavator bearing and the diversity of the site conditions; easy to attack due to oil leakage caused by multiple parts damage. Handling this title should pay attention to the bearing seal, do not form a lot of grease exposed.

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