Excavator travel gearbox bearing
Travel bearing: the main bearing of the excavator travel gearbox.
1. Excavator travel bearings mainly include angular contact bearings and thin-walled tapered roller bearings. These two types of bearings have the advantages of being able to withstand high-strength radial and axial loads at the same time. They have a stable structure, low noise and low running wear rate.
2.About the installation of excavator travel bearings:
The environment where the bearing to install bearing should be selected as much as possible: dry, dust-free area, and should be away from equipment that will produce metal debris and dust. When installing in a complex environment, pollution should be minimized.
In the process of bearing installation, it is best to use the heating installation method. When the heating temperature is installed in the oil bath heating or sensor heating mode, the interference quantity fan can be used. The ambient temperature is 80℃-100℃, and the maximum does not exceed 120℃.
If there is no suitable heating tool, we should choose a suitable sleeve to configure equal pressure on the circumference of the end face of the excavator travel bearing ring to press the bearing into the excavator travel gearbox hub evenly. There should be no gap between the outer ring of the excavator travel bearing and the hub. (Note: It is forbidden to use hammers and other tools to directly hit the end surface of the excavator travel bearing to avoid damage to the excavator travel bearing. )
3.Maintenance of excavator travel bearings:
The gear oil in the travel gearbox of the excavator should be checked regularly. It is forbidden to work without lubrication of the excavator travel bearing, keep the excavator travel gearbox well sealed, and not expose the excavator travel bearing to a large amount of dust. Working under extreme conditions pay more attention to checking whether dust, dirt, gravel... whether it enters the excavator gearbox and may damage the excavator travel bearings.
4. Causes of damage to the travel bearing of the excavator:
1). Wear and tear during normal use.
2). The lack of gear oil lubrication leads to high temperature and overheating of the excavator's walking bearing, causing failures such as peeling of the skin.
3). Improper operation in the process of installing the excavator travel bearing leads to a reduction in service life.
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