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Excavator bearings play a crucial role in the production and maintenance of excavators. As a critical component, these bearings are responsible for supporting the load and enabling smooth rotation of various moving parts in the excavator, such as the boom, arm, and bucket.
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2024
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01
Disassembly method of needle bearing
The knocking force is generally applied to the inner ring of the bearing, and the knocking force of the shielding machine room should not be applied to the rolling element and cage of the bearing. This method is simple and easy to operate, but it can easily damage the bearing. When the bearing is located at the end of the shaft, use a copper rod or other soft metal material smaller than the inner diameter of the bearing to support the shaft end, and add a cushion block to the lower part of the bearing. Gently tap with a hammer to remove it. When applying this method, attention should be paid to the appropriate position of the cushion blocks and the correct point of application.
28
2023
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09
Application of tapered roller bearings
Tapered roller bearings have tapered inner and outer raceways, with tapered rollers arranged between them. The projection lines of all conical surfaces converge at the same point on the bearing axis. This design makes tapered roller bearings particularly suitable for bearing composite (radial and axial) loads. The axial load capacity of bearings is mostly determined by the contact angle α Determined; α The larger the angle, the higher the axial load capacity. The angle size is represented by the calculation coefficient e; The larger the e-value, the greater the contact angle, and the greater the applicability of the bearing to withstand axial loads.
28
2023
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09
The dismantling of bearings is a regular maintenance process, which is carried out during bearing replacement. After disassembly, if it is necessary to continue using or check the condition of the bearings, the disassembly should also be carried out with the same care as during installation. Pay attention not to damage the various parts of the bearing, especially the disassembly of interference fit bearings, which is difficult to operate.
28
2023
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09
Method for Adjusting the Radial Clearance of Cylindrical Roller Bearings
For multi oil wedge tilting bearing pads, it is not allowed to repair or scrape the pads. When the clearance is not suitable, the pads should be replaced. For pads with adjustable thickness, the amount of pads can be adjusted by adding a stainless steel pad under the adjustment block at the back of the pad, or by thinning the thickness of the adjustment block. Note that for multi oil wedge tilting bearing pads, the thickness error between the same set of pads should be less than 0.01mm.
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2023
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09
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Add : Tangyuan Town, Linqing City, Liaocheng City, Shandong Province
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