What is excavator bearing?

Excavator bearing includes: excavator traveling bearing, excavator slewing bearing, excavator needle bearing, excavator gearbox bearing, excavator traveling motor bearing, excavator traveling drive bearing, excavator joint bearing, excavator slewing support bearing and excavator The inch non-standard bearings used on the machine.

The installation and disassembly methods of excavator bearing should be determined according to the structure, size of the excavator bearing and the matching properties with the excavator bearing components. The pressure of installation and disassembly should be directly applied to the end face of the excavator bearing retaining ring that is tightly fitted, and the pressure cannot be transmitted through the excavator bearing rolling elements, because this will cause indentations on the working surface of the excavator bearing, which will affect the normal operation of the excavator bearing, and even cause the excavator bearing to work properly. Damaged excavator bearing. The cage, sealing ring, dust cover and other parts of the excavator bearing are easily deformed, and the pressure of installing or removing the excavator bearing cannot be added to these parts.

Excavator bearing installation:
(1) Improper adjustment of the shifting device. If the transmission of this type of excavator adopts a mechanical manual shifting method, if the shifting lever, vertical axis, horizontal axis and vertical fixing screws are loose, the transmission can also "jump gear". Gearbox wear

(2) Sudden change of external load Due to the working nature of the excavator and the design of the machine itself, the sudden change of the external load will also cause its transmission to "jump". When the road surface is uneven, the excavator is driving downhill or the driving route is improper and the external load changes suddenly, the sudden change of the load will act on the gear meshing gear of the transmission through the wheels and drive shaft, so that the gear meshes The gears disengage due to axial thrust, causing the transmission to "jump". Decreased performance of self-locking mechanisms

(3) The transmission mechanism of the shifting device of the excavator realizes shifting by relying on the sliding gear sleeve to move axially on the fixed gear sleeve and meshing with the driven gear of each gear. In the process of frequent shifting, the end faces of the gear teeth of the above-mentioned meshing gears are easily ground into a conical shape, which reduces the meshing performance and causes "jumping gears".

(4) In order to prevent the transmission from "jumping", the excavator is equipped with self-locking gears in the box cover holes above the shift fork shafts of Ⅱ, Ⅲ and Ⅳ, Ⅴ of the transmission and in the shift forks of I and reverse gears. Steel balls and springs. When the elasticity of the spring that plays the role of positioning and self-locking is weakened or broken, the self-locking performance of the self-locking mechanism will decrease until it disappears, causing the transmission to "jump". At the same time, if the groove on the positioning steel ball or the fork shaft is worn, it can also cause the transmission to "jump".

(5) Improper operation method When the excavator is driving on a slope (especially driving downhill), if the operation is improper, it will also cause the transmission to "jump".

If you need any brand bearings or any models of bearings, please contact me!

Contact: Grace
Email: ntn@llhbearing.com
Skype:+8618668903871
MP/Whatsapp: +8618668903871
Wechat:GraceXu1234